JP2001302853A - Resin molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin molding having excellent mechanical characteristics such as strength and impact resistance, and also having improved vibration- damping properties, resistance to penetration of gas or liquid, and molding workability such as improvement of unevenness of thickness caused at the time of extruding or blow-molding. SOLUTION: This resin molding comprising (A) 50-99.9 wt.% polyolefin resin, (B) 50-0.1 wt.% liquid crystal resin is characterized in that the component (B) is dispersed in the matrix of the component (A), and the dispersed particles of the component (B) satisfy the following formulas (1) and (2): (1) (TD particle diameter)/(ZD particle diameter)>=1.1; and (2) (MD particle diameter)/(ZD particle diameter)>=1.1 (wherein, MD is the flow direction of the resin; TD is the direction at the right angle to the flow direction and parallel to the surface of the molding; and ZD is the direction at the right angle to both of the flow direction and the surface of molding).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to excellent mechanical properties such as strength and impact resistance, vibration damping properties, permeation resistance of gas and / or liquid, and uneven thickness during extrusion and blow molding. The present invention relates to a resin molded article having improved moldability such as improvement of resin.

[0002]

2. Description of the Related Art In recent years, while environmental problems and the like have been highlighted, liquid crystalline resins capable of forming an anisotropic molten phase have good fluidity, high strength, high rigidity, high gas barrier properties, and chemical resistance. Attempts have been made to make use of a number of properties and to use it as a modifier for thermoplastic resins. Among them,
As described in JP-A-320128 and JP-A-5-112709, first, the liquid crystal resin is extruded while being stretched at a temperature at which both the liquid crystal resin and the thermoplastic resin are melted, so that the liquid crystal resin has an aspect ratio in advance. When a molding material is prepared so as to exist in a fibrous form having a large length (length / thickness) and a molded article is molded, only the thermoplastic resin is melted without melting the liquid crystal resin. A method of producing a molded article containing a fibrous liquid crystalline resin having a reinforcing effect by molding at a melting temperature has been considered. However, it is difficult to hold the material oriented during kneading as it is during molding, and the rigidity was not sufficient. In addition, due to the fibrous orientation, it is weak against impacts along the flow direction of molecules, and when used for barrier applications, gas and / or liquid barrier properties are not sufficient.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-mentioned problems, that is, it has excellent mechanical properties such as strength and impact resistance, and has vibration-damping properties and resistance to gas and / or liquid. It is an object of the present invention to obtain a resin molded product having improved moldability such as permeability and thickness unevenness during extrusion and blow molding.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have reached the following conclusions and have reached the present invention.

That is, the present invention provides: (1) 50 to 99.9% by weight of polyolefin resin (A)
And in a resin molded product comprising 50 to 0.1% by weight of the liquid crystalline resin (B), (B) is dispersed in the matrix of (A), and the particle length of (B) is represented by the following formulas (a) and (b). B)
A resin molded article characterized by satisfying the following condition: TD particle length / ZD particle length ≧ 1.1 (b) MD particle length / ZD particle length ≧ 1.1 (b) MD: Flow direction TD: perpendicular to the resin flow direction and parallel to the molded product surface ZD: perpendicular to the resin flow direction and perpendicular to the molded product surface (2) In the matrix (A) In the dispersed liquid crystalline resin (B) particles, the ratio of the particles having a ratio of MD particle length / TD particle length of 5 or more is 10% by weight or more based on the total amount of (B). (3) Among the particles of the liquid crystalline resin (B), those having an MD particle length of 5 μm or more are 15% by weight based on the total amount of (B). % Or more, the resin molded article according to the above (1) or (2), And a resin molded product, (4) according to claim (1) a resin molded article is obtained by injection molding to (3) a resin molded article according to any one. (5) The resin molded article according to any one of the above (1) to (3), wherein the resin molded article is in the form of a film, sheet or tube obtained by press molding or extrusion molding. (6) The resin molded product according to any one of the above (1) to (3), wherein the resin molded product is obtained by blow molding. (7) The resin molded product according to any one of the above (1) to (6), wherein the resin molded product is used for a transport line, a storage container, or an accessory thereof. (8) The resin molded product according to any one of the above (1) to (6), wherein the resin molded product is used for an interior material of an automobile.

[0006]

Embodiments of the present invention will be described below. In the present invention, “weight” means “mass”.

The polyolefin resin used in the present invention includes homopolymers such as polyethylene, polypropylene, polystyrene, polyacrylate, polymethacrylate, poly1-butene, poly1-pentene, and polymethylpentene; α-olefin copolymer, vinyl alcohol ester homopolymer, polyolefin obtained by hydrolyzing at least a part of vinyl alcohol ester homopolymer, [(ethylene and / or
Or a copolymer of vinyl alcohol ester) and a polyolefin obtained by hydrolyzing at least a portion of [(ethylene and / or propylene) and (unsaturated carboxylic acid and / or unsaturated carboxylic acid ester)].
And [(ethylene and / or propylene)
And a (copolymer of unsaturated carboxylic acid and / or unsaturated carboxylic acid ester) obtained by subjecting at least a part of the carboxyl group to a metal salt, a block copolymer of a conjugated diene and a vinyl aromatic hydrocarbon. And hydrides thereof. Among these polyolefins, polyethylene, polypropylene and copolymerized polypropylene containing polypropylene as a main component are particularly preferable.

[0008] The polypropylene is not particularly limited, and any of isotactic, atactic, syndiotactic and the like can be used. In addition to the homopolymer, a block with another olefin component containing 70% by weight or more of a propylene component or a random copolymer can also be used.

The melt flow rate (MFR) of these polyolefin resins is preferably 0.1 to 70 g / 10 min, more preferably 0.3 to 60 g / 10 min. If the MFR is less than 0.1 g / 10 min, the fluidity is poor, and if it exceeds 70 g / 10 min, the impact strength becomes low, which is not preferable. These MFRs may be prepared by thermally decomposing a polymerized polymer together with an organic peroxide.

In the present invention, the polyolefin resin may be used after being modified with at least one compound selected from unsaturated carboxylic acids, acid anhydrides and derivatives thereof. By using the modified polyolefin modified in this way, the compatibility is further improved,
It has the feature of being extremely excellent in impact resistance while maintaining moldability. Examples of compounds selected from unsaturated carboxylic acids, acid anhydrides or derivatives thereof used as a modifier include acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, and methylmaleic acid. , Methyl fumaric acid, mesaconic acid, citraconic acid,
Glutaconic acid and metal salts of these carboxylic acids, methyl hydrogen maleate, methyl hydrogen itaconate, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate,
Methyl methacrylate, 2-ethylhexyl methacrylate, hydroxyethyl methacrylate, aminoethyl methacrylate, dimethyl maleate, dimethyl itaconate, maleic anhydride, itaconic anhydride, citraconic anhydride, endobicyclo- (2, 2,1) -5-heptene-2,3-dicarboxylic acid, endobicyclo- (2,2,
1) -5-heptene-2,3-dicarboxylic anhydride, maleimide, N-ethylmaleimide, N-butylmaleimide, N-phenylmaleimide, glycidyl acrylate,
Glycidyl methacrylate, glycidyl ethacrylate, glycidyl itaconate, glycidyl citraconic acid, and 5-norbornene-2,3-dicarboxylic acid.

Of these, unsaturated dicarboxylic acids and their anhydrides are preferred, especially maleic acid, acrylic acid, methacrylic acid, glycidyl acrylate, glycidyl methacrylate, 5-norbornene-2,3-dicarboxylic acid. Acids or their anhydrides are preferred.

The method for introducing these functional group-containing components into the olefin compound is not particularly limited, and the olefin compound as the main component and the functional group-containing olefin compound are previously copolymerized, or the functional group-containing olefin compound is added to the unmodified polyolefin. A method such as graft introduction using a radical initiator can be used. The amount of the functional group-containing component to be introduced is suitably in the range of preferably 0.001 to 40 mol%, more preferably 0.01 to 35 mol%, based on the entire olefin monomer in the modified polyolefin.

The method for producing the polyolefin resin (b) used in the present invention is not particularly limited, and may be any of radical polymerization, coordination polymerization using a Ziegler-Natta catalyst, anionic polymerization, and coordination polymerization using a metallocene catalyst. Can also be used.

The liquid crystalline resin (B) of the present invention is a resin capable of forming an anisotropic molten phase, and preferably has an ester bond. For example, a liquid crystalline polyester comprising an aromatic oxycarbonyl unit, an aromatic dioxy unit, an aromatic and / or aliphatic dicarbonyl unit, a structural unit selected from an alkylenedioxy unit, and forming an anisotropic molten phase; Alternatively, a liquid crystalline polyesteramide comprising the above structural unit and a structural unit selected from an aromatic iminocarbonyl unit, an aromatic diimino unit, an aromatic iminooxy unit and the like, and forming an anisotropic molten phase.

Examples of the aromatic oxycarbonyl unit include, for example, p-hydroxybenzoic acid, 6-hydroxy-2-
Examples of the structural unit and aromatic dioxy unit generated from naphthoic acid and the like include 4,4′-dihydroxybiphenyl, hydroquinone, 3,3 ′, 5,5′-tetramethyl-4,4′-dihydroxybiphenyl, t -Structural units formed from -butylhydroquinone, phenylhydroquinone, 2,6-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2,2-bis (4-hydroxyphenyl) propane, 4,4'-dihydroxydiphenyl ether, and aromatics And / or aliphatic dicarbonyl units include, for example, terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid, 4,4 ′
-Diphenyldicarboxylic acid, 1,2-bis (phenoxy) ethane-4,4'-dicarboxylic acid, 1,2-bis (2-chlorophenoxy) ethane-4,4'-dicarboxylic acid and 4,4'diphenyletherdicarboxylic acid acid,
Adipic acid, a structural unit formed from sebacic acid, etc., as an alkylenedioxy unit ethylene glycol,
Structural units formed from 1,3-propylene glycol, 1,4-butanediol and the like (preferably structural units formed from ethylene glycol are preferable), and aromatic iminooxy units are formed from, for example, 4-aminophenol. Structural units.

Specific examples of the liquid crystalline polyester include p
Liquid crystalline polyester comprising a structural unit formed from -hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid, a structural unit formed from p-hydroxybenzoic acid, 6
A structural unit formed from -hydroxy-2-naphthoic acid,
A liquid crystalline polyester comprising a structural unit formed from an aromatic dihydroxy compound and / or an aliphatic dicarboxylic acid, a structural unit formed from p-hydroxybenzoic acid,
Structural units formed from 4,4′-dihydroxybiphenyl, liquid crystalline polyesters composed of structural units formed from terephthalic acid and / or aliphatic dicarboxylic acids such as adipic acid and sebacic acid, structural units formed from p-hydroxybenzoic acid A structural unit generated from ethylene glycol, a liquid crystalline polyester including a structural unit generated from terephthalic acid, a structural unit generated from p-hydroxybenzoic acid, a structural unit generated from ethylene glycol,
Liquid crystalline polyester consisting of structural units formed from terephthalic acid and isophthalic acid, structural unit formed from p-hydroxybenzoic acid, structural unit formed from ethylene glycol, structural unit formed from 4,4′-dihydroxybiphenyl, terephthalic acid And / or a liquid crystalline polyester comprising a structural unit derived from an aliphatic dicarboxylic acid such as adipic acid or sebacic acid, a structural unit derived from p-hydroxybenzoic acid, a structural unit derived from ethylene glycol, or an aromatic dihydroxy compound. Examples of the liquid crystalline polyester include structural units and structural units formed from aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, and 2,6-naphthalenedicarboxylic acid.

Among the examples of the liquid crystalline polyester forming the anisotropic molten phase, the following (I), (II) and (III)
And a liquid crystalline polyester comprising the structural units of (IV),
Alternatively, a liquid crystalline polyester composed of the structural units (I), (III) and (IV) is preferable.

Particularly preferred are liquid crystalline polyesters comprising the structural units (I), (II), (III) and (IV).

[0019]

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(Where R ₁ in the formula is

[0021]

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R ₂ represents one or more groups selected from

[0023]

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And at least one group selected from the group consisting of In the formula, X represents a hydrogen atom or a chlorine atom. ).

The structural unit (I) is a structural unit formed from p-hydroxybenzoic acid, and the structural unit (II) is 4,
4'-dihydroxybiphenyl, 3,3 ', 5,5'-
Tetramethyl-4,4′-dihydroxybiphenyl, hydroquinone, t-butylhydroquinone, phenylhydroquinone, methylhydroquinone, 2,6-dihydroxynaphthalene, 2,7-dihydroxynaphthalene,
Structural units formed from one or more aromatic dihydroxy compounds selected from 2,2-bis (4-hydroxyphenyl) propane and 4,4′-dihydroxydiphenyl ether, and structural unit (III) is formed from ethylene glycol. Structural unit (IV) is terephthalic acid, isophthalic acid, 4,4′-diphenyldicarboxylic acid,
6-naphthalenedicarboxylic acid, 1,2-bis (phenoxy) ethane-4,4′-dicarboxylic acid, 1,2-bis (2-chlorophenoxy) ethane-4,4′-dicarboxylic acid and 4,4′- The structural units generated from one or more aromatic dicarboxylic acids selected from diphenyl ether dicarboxylic acids are shown below. Of these, R ₁ is

[0026]

Embedded image

And R ₂ is

[0028]

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Is particularly preferred.

As described above, the liquid crystalline polyester which can be preferably used in the present invention includes the structural units (I) and (II)
Copolymer comprising I) and (IV) and the above structural unit
At least one selected from copolymers consisting of (I), (II), (III) and (IV), wherein the above structural units (I), (II) and (III)
The copolymerization amount of (IV) and (IV) is optional. However, in order to exhibit the characteristics of the present invention, the following copolymerization amount is preferable.

That is, the structural units (I), (II) and (I)
II), in the case of a copolymer consisting of (IV), the structural unit (I)
And the sum of (II) is the sum of the structural units (I), (II) and (III)
Is preferably from 30 to 95 mol%, and more preferably from 40 to 8
5 mol% is more preferred. The structural unit (III) is 70 to 5 with respect to the total of the structural units (I), (II) and (III).
Mol% is preferable, and 60 to 15 mol% is more preferable.
Also, the molar ratio of the structural unit (I) to (II) [(I) / (II)]
Is preferably 75/25 to 95/5, and more preferably 78/22 to 93/7. In addition, structural unit (IV)
Is preferably substantially equimolar to the sum of the structural units (II) and (III).

On the other hand, when the structural unit (I) is not contained, the structural unit (I) is replaced with the structural unit (I) from the viewpoint of fluidity.
It is preferably from 40 to 90 mol%, particularly preferably from 60 to 88 mol%, based on the total of (III) and (III), and the structural unit (IV) is substantially equimolar to the structural unit (III). Preferably, there is.

The term "substantially equimolar" means that the units constituting the polymer main chain excluding the terminal are equimolar, but the units constituting the terminal are not necessarily equimolar.

Further, as the liquid crystalline polyesteramide,
Polyesteramides that form an anisotropic molten phase containing p-iminophenoxy units formed from p-aminophenol in addition to the structural units (I) to (IV) are preferred.

The liquid crystalline polyesters and liquid crystalline polyesteramides which can be preferably used include, in addition to the components constituting the structural units (I) to (IV), 3,3'-diphenyldicarboxylic acid and 2,2'-diphenyl Aromatic dicarboxylic acids such as dicarboxylic acid, adipic acid, azelaic acid,
Aliphatic dicarboxylic acids such as sebacic acid and dodecanedioic acid, alicyclic dicarboxylic acids such as hexahydroterephthalic acid, chlorohydroquinone, 3,4'-dihydroxybiphenyl, 4,4'-dihydroxydiphenylsulfone, 4,4'- Dihydroxydiphenyl sulfide,
Aromatic diols such as 4,4'-dihydroxybenzophenone and 3,4'-dihydroxybiphenyl, propylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, 1,4-cyclohexanediol, Liquid crystalline properties of aliphatic, alicyclic diols such as 1,4-cyclohexanedimethanol, aromatic hydroxycarboxylic acids such as m-hydroxybenzoic acid and 2,6-hydroxynaphthoic acid, and p-aminobenzoic acid are not impaired. Can be further copolymerized in the range described above.

The method for producing the liquid crystalline resin (B) used in the present invention is not particularly limited, and it can be produced according to a known polyester polycondensation method.

For example, in the production of the liquid crystalline polyester, the following production method is preferably mentioned. (1) p-acetoxybenzoic acid and diacylated aromatic dihydroxy compounds such as 4,4'-diacetoxybiphenyl and diacetoxybenzene and aromatic dicarboxylic acids such as 2,6-naphthalenedicarboxylic acid, terephthalic acid and isophthalic acid A method for producing a liquid crystalline polyester by a deacetic acid polycondensation reaction therefrom. (2) Reaction of aromatic dihydroxy compounds such as p-hydroxybenzoic acid and 4,4′-dihydroxybiphenyl and hydroquinone with aromatic dicarboxylic acids such as 2,6-naphthalenedicarboxylic acid, terephthalic acid and isophthalic acid, and acetic anhydride. The phenolic hydroxyl group is acylated, and then a liquid crystalline polyester is produced by a deacetic acid polycondensation reaction. (3) Phenyl esters of p-hydroxybenzoic acid and aromatic dihydroxy compounds such as 4,4'-dihydroxybiphenyl and hydroquinone and diphenyl esters of aromatic dicarboxylic acids such as 2,6-naphthalenedicarboxylic acid, terephthalic acid and isophthalic acid For producing liquid crystalline polyesters from polyphenols by a dephenol removal polycondensation reaction. (4) A predetermined amount of diphenyl carbonate is reacted with p-hydroxybenzoic acid and an aromatic dicarboxylic acid such as 2,6-naphthalenedicarboxylic acid, terephthalic acid, or isophthalic acid to form diphenyl esters, respectively.
A method in which an aromatic dihydroxy compound such as 4,4'-dihydroxybiphenyl or hydroquinone is added, and a liquid crystalline polyester is produced by a phenol-elimination polycondensation reaction. (5) In the presence of a bis (β-hydroxyethyl) ester of an aromatic dicarboxylic acid such as a polymer or oligomer of a polyester such as polyethylene terephthalate or an aromatic dicarboxylic acid such as bis (β-hydroxyethyl) terephthalate, the liquid crystal is prepared by the method of (1) or (2). A method for producing a conductive polyester.

Further, the melt viscosity of the liquid crystalline resin (B) is not particularly limited, but in order to further exhibit the effects of the present invention,
The value measured at the melting point of the liquid crystalline resin + 10 ° C. is 100 Pa ·
s or less, more preferably 0.1 to
It is 50 Pa · s, most preferably 0.5 to 30 Pa · s. Here, the melt viscosity is determined at a shear rate of 1,000.
(1 / sec) Nozzle diameter 0.5mmφ, nozzle length 10mm
Are values measured by a Koka type flow tester using the nozzle of No.

Here, in the differential calorimetry, the endothermic peak temperature (Tm1) observed when the polymerized polymer is measured from room temperature under a heating condition of 20 ° C./min, and then Tm1 + 20 ° C. After holding at the temperature of 5 minutes, 2
Once cooled to room temperature at 0 ° C./min,
The melting point is the endothermic peak temperature (Tm2) observed when the measurement is performed under the temperature rising condition of 0 ° C./min.

Polyolefin resin (A) used in the present invention
The compounding ratio of the resin and the liquid crystalline resin (B) is excellent in mechanical properties such as high strength and impact resistance, and also improves vibration suppression, gas and / or liquid permeation resistance, and thickness unevenness during extrusion and blow molding. From the viewpoint of improving the formability such as (A) and (B), 99.9 to 50% by weight and (B) 0.1 to 50% by weight based on the sum of (A) and (B).
%, Preferably (A) 95-70% by weight, (B) 5
To 30% by weight, more preferably (A) 92 to 80% by weight, and (B) 8 to 20% by weight.

In order to exhibit the specific effects of the present invention, it is essential that the dispersed particles of (B) satisfy the following formulas (A) and (B). ZD particle length ≧ 1.1 (b) MD particle length / ZD particle length ≧ 1.1 (b) MD: resin flow direction TD: perpendicular to the resin flow direction and at the surface of the molded product Parallel direction ZD: perpendicular to the resin flow direction and perpendicular to the surface of the molded product. Preferably, TD particle length / ZD particle length ≧ 2 (b) MD particle length / ZD particle length ≧ 1. 5 (b) More preferably, TD particle length / ZD particle length ≧ 3 (b) MD particle length / ZD particle length ≧ 2 (b)

When only the formula (b) is satisfied, there is a high possibility that the fiber has a fibrous orientation. In this case, the effect of the present invention cannot be sufficiently satisfied, and the formulas (a) and (b) are not satisfied. Is satisfied when the liquid crystalline resin particles are flat (oval).
Means that the effects of the present invention can be sufficiently exhibited.

In order to efficiently exhibit the effects of the present invention, the particle diameter of the MD is preferably 5% or more, more preferably 10% or more, more preferably 15% or more.

In order to further improve the strength and the vibration damping effect of the present invention, among the dispersed particles of the liquid crystalline resin (B) dispersed in the polyolefin resin (A) as the matrix resin, The aspect ratio represented by MD particle length / TD particle length when observed in the flow direction of 5 or more, more preferably 20 or more, is 10% by weight or more based on the whole dispersed particles. Preferably
It is more preferably at least 30% by weight.

The state of the particles of the liquid crystalline resin (B) in the polyolefin resin (A) can be observed using an electron transmission microscope (TEM). Specifically, based on the surface of the resin molded product, in the case of a molded product having a thickness of 500 μm or more, a portion 200 μm from the surface, if less than 500 μm, a half of the thickness is cut in a horizontal direction with respect to the surface, The section obtained by further cutting the section on the core layer side in a direction perpendicular to the surface was observed and photographed by an electron transmission microscope (TEM), and the particle length of each MD of 100 dispersed particles and each particle of TD The measurement is performed by measuring the length of each particle of length and ZD. The average value was obtained from these measured values, and the MD particle length,
TD particle length, ZD particle length, TD particle length / ZD
And the ratio represented by MD particle length / ZD particle length can be calculated. In addition, a particle length ratio, an aspect ratio, and the like can be calculated based on each measurement value.

A filler can be used to impart further mechanical strength and other properties to the resin molded article of the present invention. The filler is not particularly limited, but may be a fibrous, plate-like, powder-like, Fillers, such as granular, can be used. Specifically, for example, glass fiber, PAN-based or pitch-based carbon fiber, stainless fiber, metal fiber such as aluminum fiber or brass fiber, organic fiber such as aromatic polyamide fiber, gypsum fiber, ceramic fiber, asbestos fiber,
Fibrous such as zirconia fiber, alumina fiber, silica fiber, titanium oxide fiber, silicon carbide fiber, rock wool, potassium titanate whisker, barium titanate whisker, aluminum borate whisker, silicon nitride whisker, whisker-like filler, mica, talc Powder, granular or plate-like fillers such as kaolin, silica, calcium carbonate, glass beads, glass flakes, glass microballoons, clay, molybdenum disulfide, wollastenite, titanium oxide, zinc oxide, calcium polyphosphate, graphite, etc. No. Among the above fillers, glass fibers and PAN-based carbon fibers are preferably used when conductivity is required. The type of the glass fiber is not particularly limited as long as it is generally used for reinforcing a resin. For example, a long fiber type or a short fiber type chopped strand, a milled fiber or the like can be used.
Further, two or more of the above fillers can be used in combination. The filler used in the present invention may be used after its surface is treated with a known coupling agent (for example, a silane coupling agent, a titanate coupling agent, or the like) or another surface treatment agent. .

Further, the glass fiber may be covered or bundled with a thermoplastic resin such as an ethylene / vinyl acetate copolymer or a thermosetting resin such as an epoxy resin.

The amount of the filler to be added is 0.5 to 200 parts by weight, preferably 5 to 100 parts by weight of the total amount of the polyolefin resin (A) and the liquid crystal resin (B).
To 150 parts by weight, more preferably 10 to 100 parts by weight.

It is possible to use a conductive filler and / or a conductive polymer for imparting conductivity to the resin molded article of the present invention, and it is not particularly limited.
As the conductive filler, there is no particular limitation as long as it is a conductive filler that is usually used for resin conductivity, and specific examples thereof include metal powder, metal flake, metal ribbon, metal fiber, metal oxide, and a conductive substance. Examples thereof include a coated inorganic filler, carbon powder, graphite, carbon fiber, carbon flake, and flaky carbon.

Specific examples of the metal species of the metal powder, metal flake, and metal ribbon include silver, nickel, copper, zinc, aluminum, stainless steel, iron, brass, chromium, and tin.

Specific examples of the metal species of the metal fiber include iron,
Examples thereof include copper, stainless steel, aluminum, and brass.

The metal powder, metal flake, metal ribbon, and metal fiber may be subjected to a surface treatment with a surface treatment agent such as titanate, aluminum, and silane.

Specific examples of the metal oxide include SnO ₂ (antimony doped), In ₂ O ₃ (antimony doped),
Examples thereof include ZnO (aluminum dope), and these may be subjected to a surface treatment with a surface treating agent such as a titanate, aluminum, or silane.

Specific examples of the conductive substance in the inorganic filler coated with the conductive substance include aluminum, nickel, silver, carbon, SnO ₂ (antimony-doped),
Examples include n ₂ O ₃ (antimony doping). As the inorganic filler to be coated, mica, glass beads, glass fiber, carbon fiber, potassium titanate whisker, barium sulfate, zinc oxide, titanium oxide, aluminum borate whisker, zinc oxide whisker, titanate whisker, Silicon carbide whiskers can be exemplified. As a coating method, a vacuum deposition method, a sputtering method,
Examples include an electroless plating method and a baking method. These may be subjected to a surface treatment with a surface treating agent such as titanate, aluminum, or silane.

The carbon powder is classified into acetylene black, gas black, oil black, naphthalene black, thermal black, furnace black, lamp black, channel black, roll black, disk black and the like according to its raw material and production method. The raw material and the production method of the carbon powder that can be used in the present invention are not particularly limited, but acetylene black and furnace black are particularly preferably used. Various carbon powders having different properties such as particle diameter, surface area, DBP oil absorption, and ash content are produced. The carbon powder that can be used in the present invention is not particularly limited in these properties, but from the viewpoint of strength and electrical conductivity, the average particle size is 500 nm or less, particularly 5 to 100 nm,
Further, the thickness is preferably 10 to 70 nm. The surface area (BET
Law) is 10 m ² / g or more, more preferably at least 30 m ² / g. The DBP lubrication amount is preferably 50 ml / 100 g or more, particularly preferably 100 ml / 100 g or more. The ash content is preferably 0.5% or less, particularly preferably 0.3% or less.

The carbon powder may be subjected to a surface treatment with a surface treating agent such as a titanate, aluminum or silane. It is also possible to use those granulated for improving the workability of the melt-kneading.

The resin molded product of the present invention is often required to have a smooth surface. From such a viewpoint, the conductive filler used in the present invention is, like the filler used in the present invention, a fibrous filler having a high aspect ratio,
It is preferably in any form of powder, granule, plate, scale, or fibrous having a length / diameter ratio of 200 or less in the resin composition.

Specific examples of the conductive polymer used in the present invention include polyaniline, polypyrrole, polyacetylene, poly (paraphenylene), polythiophene, and polyphenylenevinylene.

The above-mentioned conductive filler and / or conductive polymer may be used in combination of two or more kinds. Among such conductive fillers and conductive polymers, carbon black is particularly preferably used in terms of strength and cost.

The conductive filler used in the present invention and / or
Alternatively, since the content of the conductive polymer varies depending on the type of the conductive filler and / or the conductive polymer used, it cannot be unconditionally specified, but from the viewpoint of a balance between conductivity, fluidity, mechanical strength, and the like, the following is required. The following range is preferable.
That is, in the case of the conductive polymer, a range of 1 to 250 parts by weight, preferably 3 to 100 parts by weight is preferably selected with respect to 100 parts by weight of the total of the components (A) and (B). Since the conductive filler is a kind of the filler, the amount of the conductive filler is considered as the number of filler components.

When conductivity is imparted, its volume resistivity is 10 ¹⁰ Ω · c in order to obtain sufficient antistatic performance.
m or less. However, the blending of the above-mentioned conductive filler and conductive polymer generally tends to cause deterioration in strength and fluidity. Therefore, if a target conductivity level can be obtained, it is desirable that the amount of the conductive filler and conductive polymer is as small as possible. The target conductivity level depends on the application, but usually the volume resistivity is 100Ω
· It is more than ¹⁰ cm and not more than 10 ¹⁰ Ω · cm.

For example, when it is necessary to further improve the permeation resistance of a resin molded product such as liquid and gas, acrylic acid, methacrylic acid, acid anhydride or polyepoxy compound is used separately from the modification of polyolefin. Can be further added. Examples of acid anhydrides include benzoic anhydride, isobutyric anhydride, itaconic anhydride, octanoic anhydride, glutaric anhydride, succinic anhydride, acetic anhydride, dimethylmaleic anhydride, decanoic anhydride, trimellitic anhydride, , 8-Naphthalic acid, phthalic anhydride, maleic anhydride and the like. Among them, succinic anhydride, 1,8-naphthalic anhydride, phthalic anhydride, maleic anhydride and the like are preferable. The polyvalent epoxy compound is a compound having two or more epoxy groups in a molecule. Preferably, the polyepoxy compound has an epoxy equivalent of 10
It is selected from 0 to 1000 polyfunctional epoxy compounds. Examples of such a polyvalent epoxy compound include a novolak type epoxy compound obtained by reacting a novolak resin (phenol novolak, cresol novolak, etc.) with epichlorohydrin. Alternatively, a compound obtained by reacting a compound having two or more active hydrogens in one molecule with epichlorohydrin or 2-methylepichlorohydrin is exemplified. Examples of the compound having two or more active hydrogens in one molecule include polyhydric phenols (bisphenol A, bishydroxydiphenylmethane, resorcin, bishydroxydiphenyl ether,
Tetrabromobisphenol A, etc.), polyhydric alcohols (ethylene glycol, neopentyl glycol, glycerin, trimethylolpropane, pentaerythritol, diethylene glycol, polypropylene glycol, bisphenol A-ethylene oxide adduct, trishydroxyethyl isocyanurate, etc.), amino compounds (Eg, ethylenediamine, aniline, etc.) and polyvalent carboxy compounds (eg, adipic acid, phthalic acid, isophthalic acid, etc.). Examples of such polyepoxy compounds include terephthalic acid diglycidyl ester, triglycidyl cyanurate, hydroquinone diglycidyl ether, N, N'-diglycidylaniline, and the like. Other examples include linear aliphatic epoxy compounds such as butadiene dimer epoxide and epoxidized soybean oil, and alicyclic epoxy compounds such as vinylcyclohexene dioxide and dicyclopentadiene diepoxide. These may be used alone or in combination of two or more.

The amount of the acid anhydride or polyepoxy compound used in the present invention is preferably 0.01 to 100 parts by weight per 100 parts by weight of the polyolefin resin (A) from the viewpoint of the effect of improving permeation resistance.
The amount is preferably 5 parts by weight, more preferably 0.05 to 3 parts by weight, particularly preferably 0.1 to 2 parts by weight. By using an acid anhydride or a polyepoxy compound, the particle size distribution width of the liquid crystalline resin dispersed in the polyolefin resin (A) is narrowed, and as a result, the transmission resistance is further improved by adding the liquid crystalline resin. It is effective. However, if the amount of acid anhydride or polyepoxy compound is too large, gas is generated during melt-kneading and molding, resulting in poor biting, gas burning and rupture of the molded product during blow-in or extrusion molding, and gas leakage. Gelation occurs due to the cause of occurrence or excessive reaction, and in the worst case, molding becomes impossible. Further, for example, even if a molded product is obtained, the obtained molded product also tends to have reduced mechanical properties as well as surface appearance.

The state of the acid anhydride or polyepoxy compound used in the present invention in the resin molded article is not particularly limited, and the acid anhydride, epoxy compound, water or polyketone copolymer, liquid crystalline resin and It may be present in any state of a reaction product with the monomer / oligomer.

Addition of an alkoxysilane, preferably an alkoxysilane having at least one functional group selected from an epoxy group, an amino group, an isocyanate group, a hydroxyl group, a mercapto group and a ureide group, to the resin molded article of the present invention. Is effective for improving mechanical strength, toughness and the like. Specific examples of such compounds include epoxy group-containing alkoxysilanes such as γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, and β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane. Compounds, mercapto group-containing alkoxysilane compounds such as γ-mercaptopropyltrimethoxysilane, γ-mercaptopropyltriethoxysilane, γ-ureidopropyltriethoxysilane, γ-ureidopropyltrimethoxysilane, γ- (2-ureidoethyl A) ureido group-containing alkoxysilane compounds such as aminopropyltrimethoxysilane, γ-isocyanatopropyltriethoxysilane, γ-isocyanatopropyltrimethoxysilane, γ-isocyanatopropylmethyldimethoxysilane, isocyanato group-containing alkoxysilane compounds such as γ-isocyanatopropylmethyldiethoxysilane, γ-isocyanatopropylethyldimethoxysilane, γ-isocyanatopropylethyldiethoxysilane, γ-isocyanatopropyltrichlorosilane, γ- (2- Amino group-containing alkoxysilane compounds such as aminoethyl) aminopropylmethyldimethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ-aminopropyltrimethoxysilane, γ-hydroxypropyltrimethoxysilane, γ-
Hydroxy group-containing alkoxysilane compounds such as hydroxypropyltriethoxysilane and the like.

In the resin molded article of the present invention, other components such as antioxidants and heat stabilizers (hindered phenols, hydroquinones, phosphites and substituted products thereof) are included in a range not to impair the effects of the present invention. ), Weathering agents (resorcinol, salicylate, benzotriazole, benzophenone, hindered amine, etc.),
Release agents and lubricants (montanic acid and metal salts thereof, esters thereof, half esters thereof, stearyl alcohol, stearamide, various bisamides, bisurea, polyethylene wax, etc.), pigments (cadmium sulfide, phthalocyanine, carbon black, etc.), dyes ( Nigrosine, etc.), crystal nucleating agent (talc, silica, kaolin, clay, etc.), plasticizer (octyl p-oxybenzoate, N-butylbenzenesulfonamide, etc.), antistatic agent (alkyl sulfate type anionic antistatic agent, Quaternary ammonium salt type cationic antistatic agents, nonionic antistatic agents such as polyoxyethylene sorbitan monostearate, betaine amphoteric antistatic agents, etc., flame retardants (eg, red phosphorus, melamine cyanurate, water) Hydroxides such as magnesium oxide and aluminum hydroxide Ammonium polyphosphate, brominated polystyrene, brominated PPO, brominated PC, a combination of a brominated epoxy resin or their brominated flame retardant and antimony trioxide), may be added to other polymers.

There is no particular limitation as long as a resin molded product satisfying the conditions specified in the present invention can be obtained. However, in the melt-kneading, a preferable dispersion state of the liquid crystalline resin for exhibiting the characteristics of the present invention most efficiently is realized. For this purpose, the melt-kneading temperature is preferably equal to or lower than the melting point of the liquid crystalline resin to be used, more preferably -5 ° C or lower, further preferably -10 ° C or lower. The lower limit of the melt-kneading temperature is not limited as long as it can be melt-kneaded, and is not lower than the melting point of the polyolefin resin. The melt viscosity ratio is not particularly limited, but the viscosity (P) when the polyolefin resin (A) has a shear rate of 1000 sec ^-1 and the viscosity (L) when the liquid crystal resin (B) has a shear rate of 10 sec ^-1. Has a viscosity ratio (L) / (P) of 2 or more, more preferably 3 or more, and most preferably 5 or more. The upper limit is not limited as long as it can be kneaded, but from the viewpoint of the dispersibility of the liquid crystalline resin,
It is less than 50.

The extruder is not particularly limited as long as the characteristics of the present invention are exhibited.
There is no limitation as long as melt kneading is possible, but in order to control the dispersion state of (B) of the liquid crystalline resin to some extent, it is preferably 2
It is preferred to knead with a screw extruder.

When other fillers and additives are added, they may be added at any stage in the preferred kneading method with the polyolefin resin (A) and the liquid crystal resin (B). Specifically, after melt-kneading other additives such as a polyolefin resin and an acid anhydride or a polyvalent epoxy compound, an elastomer, a liquid crystal resin, a method of kneading with a filler, a method of collectively kneading all components,
Once kneading the polyolefin resin and acid anhydride or polyepoxy compound, liquid crystalline resin, then kneading the filler and other additives, once the polyolefin resin and acid anhydride or polyepoxy compound, liquid crystal resin and Is kneaded into a resin composition (Z), and then a high-concentration composition of a filler (master) is obtained using the obtained resin composition (Z).
Method for preparing (M), using a part of the polyolefin to be finally compounded, using at least one compound selected from unsaturated carboxylic acids, acid anhydrides, or derivatives thereof or a polyepoxy compound Modified resin (Y)
And then the remaining polyolefin, liquid crystalline resin,
Examples include a method of kneading a filler and other additives, and any method may be used.

The method of molding the resin molded article of the present invention is not limited, and any known method (injection molding, extrusion molding, blow molding, press molding, etc.) can be used, but the effects of the present invention are required. As a method for obtaining an item to be formed, preferably, injection molding, extrusion molding, blow molding, or the like is used. However, as long as the liquid crystalline resin can form the form of the present invention even in press molding, a molded product having satisfactory properties can be obtained. Is obtained.

Specifically, the blow molding and the extrusion molding are carried out at a molding temperature, for example, usually at the same temperature as the above-mentioned kneading temperature, generally in a single layer, but may be in a multilayer.

In the case of blow molding, after forming a parison using a usual blow molding machine, blow molding may be performed at an appropriate temperature. In addition, the form of blow molding is also a single-layer molded body,
Any of multilayer molded bodies may be used. Extrusion molding (for tubes,
The same applies to blow molding for film or sheet, and a die having a desired shape is attached to the tip of the extruder to obtain a single-layer molded product or a multilayer molded product. Further, the obtained molded product may be used by bonding the resin molded products of the present invention such as vibration welding, ultrasonic welding, hot plate welding or the like to another thermoplastic resin.

The film referred to herein has a thickness of 0.2 mm
A sheet having a thickness exceeding 0.2 mm is a sheet.

In the press molding, it is preferable to carry out press molding at a temperature not higher than the melting point of the liquid crystalline resin in the same manner as the above-described kneading conditions for the liquid crystalline resin. It may be in the form of a multilayer with a woven fabric made of an inorganic material such as a sheet, foam or glass fiber of a resin composition or other thermoplastic resin.

Next, a multi-layer molded product which is an example of the method for producing a molded product of the present invention will be described by way of example, but is not limited to the following. That is, a multilayer molded product is manufactured by introducing a molten resin extruded from an extruder of the number of layers or the number of materials into one die for multilayer, and bonding the resin in the die or immediately after leaving the die. Can be. Alternatively, a method may be used in which a single-layer molded product is once manufactured, and another layer is laminated on the inside or outside thereof to produce a multilayer molded product.

In the case of producing a multilayer molded article having a multilayer structure of three or more layers, extruders are appropriately added, each extruder is connected to a co-extrusion die, and a multilayer parison is extruded. It can be obtained by:

The arrangement of each layer in the multilayer molded article of the present invention is not particularly limited, and all the layers may be composed of the resin composition used in the molded article of the present invention, or at least one layer may be composed of the resin used in the present invention. You may comprise using a composition and using another thermoplastic resin for another layer. On the layer made of the thermoplastic resin composition of the present invention, in order to sufficiently exhibit its gas permeation resistance effect, in the case of two layers, it is the innermost layer, and in the case of three or more layers, it is the innermost layer or the intermediate layer. preferable.

The thermoplastic resin other than the resin composition for the resin molded article of the present invention used as the other layer may be a polyolefin, of course, but may be a polyamide resin, a saturated polyester resin, a polysulfone resin, a tetrafluoride resin, or the like. Polyethylene resin, polyetherimide resin, polyamideimide resin, polyamide resin, polyphenylene ether resin, polyimide resin, polyethersulfone resin, polyetherketone resin, polythioetherketone resin, polyetheretherketone resin, thermoplastic polyurethane resin, polyketone resin , ABS resins, polyamide elastomers, polyester elastomers, etc. can be exemplified. If necessary, one or more of these thermoplastic resins may be blended and used, or various additives may be added to them to impart desired physical properties. for Rukoto is of course also possible.

The resin molded product of the present invention is, for example, Freon-1
1, Freon-12, Freon-21, Freon-22, Freon-113, Freon-114, Freon-115, Freon-134a, Freon-32, Freon-123, Freon-
124, Freon-125, Freon-143a, Freon-
141b, Freon-142b, Freon-225, Freon-C318, R-502, 1,1,1-trichloroethane, methyl chloride, methylene chloride, ethyl chloride, methyl chloroform, propane, isobutane, n-butane, dimethyl ether, castor oil base Brake fluid, glycol ether brake fluid, borate ester brake fluid, brake fluid for extreme cold, silicone oil brake fluid,
Mineral oil-based brake fluid, power drilling oil, window washer fluid, gasoline, methanol, ethanol,
Low permeability and low vibration of gas and / or liquid (and vaporized gas) such as isoptanol, butanol, hydrogen, nitrogen, oxygen, carbon dioxide, methane, propane, argon, helium, xenon, pharmaceutical agents, etc. Sex, high strength,
Because of its excellent impact resistance, for example, the above-mentioned gas and / or liquid barrier film, valves, air bags, chemical storage tanks, gas storage tanks, coolant tanks, and oil transfer Tank, disinfectant tank, transfusion pump tank, fuel tank, fuel tank member, washer liquid tank, washer liquid tank member, oil reservoir tank, oil reservoir tank member, bumper material, bumper beam, spoiler, instrument panel member , Shampoo as a tank-shaped molded product as a car trim for automobile interior parts and exterior materials such as door trims, ceiling materials, outer panels, etc.
Chemical storage containers such as bottles for various chemicals such as rinses, liquid soaps, detergents and attached pumps or their tanks, valves and fittings such as cut-off valves attached to the bottles,
Accessories such as gauges and cases for attached pumps, fuel filler underpipe, various fuel tube connection parts (connectors, etc.) such as ORVR hose, reserve hose, vent hose, oil tube connection parts, brake hoses and their parts, window washer fluid Nozzles, air conditioner refrigerant tubes and their connecting parts, fuel tubes and their components, fire extinguishers and fire extinguishing equipment hoses, medical cooling equipment tubes and their connecting parts and valves, and other chemical liquid and / or gas transport In addition to tube applications, chemical storage and / or gas permeation-resistant applications such as containers for storing chemicals, civil engineering and construction applications such as buried pipes, automobile parts, internal combustion engines, and mechanical parts such as power tool housings, Electrical / electronic parts, medical equipment, food packaging, household / things It is effective for various uses such as supplies, building materials-related parts, furniture parts, and is particularly suitable for transport lines that require barrier properties, storage containers or their accessories, or automotive interior parts that require vibration damping. Used.

[0080]

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples, but the gist of the present invention is not limited to the following Examples.

REFERENCE EXAMPLE 1 A-1 Polyolefin resin: PE: polyethylene (melt viscosity at 250 ° C., shear rate 1000 sec ⁻¹ is 300 Pa · s) PP: polypropylene (250 ° C., melt viscosity at shear rate 1000 sec ⁻¹ is 200 Pa · s) s) (Melt viscosity at 270 ° C., shear rate 1000 sec ⁻¹ is 60 Pa · s) Reference Example 2 (liquid crystalline resin) B-1: 901 parts by weight of p-hydroxybenzoic acid, 4,4
126 parts by weight of '-dihydroxybiphenyl, 112 parts by weight of terephthalic acid, 346 parts by weight of polyethylene terephthalate having an intrinsic viscosity of about 0.6 dl / g, and 884 parts of acetic anhydride
A weight part was charged into a reaction vessel equipped with a stirring blade and a distilling tube, and as a result of polymerization, aromatic oxycarbonyl unit was 72.5 parts.
The melt viscosity at 265 ° C., 250 ° C. and a shear rate of 10 sec ⁻¹ consisting of molar equivalents, 7.5 molar equivalents of aromatic dioxy units, 20 molar equivalents of ethylenedioxy units, and 27.5 molar equivalents of aromatic dicarboxylic acid units is 4000 Pa.・ S, 270
A liquid crystalline resin having a melt viscosity of 15 Pa · s at 10 ° C. and a shear rate of 10 sec ⁻¹ was obtained.

Examples 1-2, Comparative Examples 1-2 Polyolefin resin (A-1) and liquid crystalline resin (B-1) were mixed in a PCM30 type twin screw extruder (manufactured by Ikegai Iron & Steel Co., Ltd.) in the proportions shown in Table 1. Was fed from a resin raw material feeder and melt-kneaded at a cylinder temperature of 250 ° C. Strand take-off speed is stretch ratio (strand / die well after stretching)
Pellets were obtained to be 2. The resulting composition was pelletized, dried with hot air at 60 ° C. for 8 hours, and evaluated by the following method.

Comparative Example 3 Melting and kneading at a cylinder temperature of 270 ° C. using a PCM30 type twin screw extruder (manufactured by Ikegai Iron & Steel Co., Ltd.) with the same composition as in Example 2, and the stretching ratio (strand / die swell after stretching) at the time of strand take-off The pellet was obtained while being stretched to 20. The resulting composition was pelletized and then heated to 60 ° C.
And dried with hot air for 8 hours, and evaluated by the following method. In addition,
The molding was performed at a cylinder temperature of 200 ° C.

(1) Strength (elastic modulus) The sample was supplied to a Sumitomo Nestar injection molding machine Promat 40/25 (manufactured by Sumitomo Heavy Industries, Ltd.) and the cylinder temperature was set to 250.
℃, mold temperature 60 ℃, pressure MAX, filling speed is the minimum speed at which the resin can be filled into the mold 70mm × 70mm ×
A 1 mm-thick square plate-type test piece was prepared.
The sheet was cut to a width of 2.7 mm, and the flexural modulus was measured according to ASTM D790.

(2) Impact resistance The product was supplied to a Sumitomo Nestor injection molding machine Promat 40/25 (manufactured by Sumitomo Heavy Industries, Ltd.) and the cylinder temperature was set to 250.
℃, mold temperature 60 ℃, pressure MAX, filling speed at the minimum speed at which the resin can be filled into the mold 62mm × 62mm ×
A 3.2 mm thick square plate type test piece was prepared and cut to a width of 12.7 mm in the direction perpendicular to the flow direction.
According to 256, the impact strength was measured.

(3) Vibration Suppression Property (Number of Amplitudes) The sample was supplied to a Sumitomo Nestar injection molding machine Promat 40/25 (manufactured by Sumitomo Heavy Industries, Ltd.) and the cylinder temperature was set to 250.
And the mold temperature are set to 60 ° C., and the pressure MAX and the filling speed are set to the minimum speed at which the resin can be filled into the mold (12
0 mm × 12.7 mm × 3.2 mm thickness) and the number of amplitudes of the molded product (B & K 2639S
Type) and power amplifier (type 2706 manufactured by B & K) and 2
A channel FFT analyzer (B & K type 2034) is used. ) Was measured in the range of 200 to 300 Hz.

(4) Degree of Improvement in Gas Barrier Property (Oxygen) A T-die was attached to the tip of an extruder having a diameter of 40 mm, and a film having a thickness of about 100 μm was formed at a cylinder temperature of 250 ° C. Next, the obtained film is cut into a diameter of 60 mm, and the GT is cut according to JIS K7126 A method (differential pressure method).
The measurement was performed using R-10 (manufactured by Yanaco Analytical Industry Co., Ltd.), and the degree of improvement in gas barrier properties when the polyolefin resin was set to 1 was calculated by the following equation. Degree of improvement = (Gas permeability of polyolefin / Gas permeability of composition) (5) Dispersion diameter and distribution of liquid crystalline resin The center of a 3.2 mm thick bending test piece prepared in accordance with ASTM D790 is the surface of the molded product in the flow direction. To 200 μm
Observed and photographed by electron transmission microscope (TEM) a section obtained by cutting a portion of the depth in the flow direction (MD), the perpendicular direction (TD), and the vertical direction (ZD), respectively.
The ratio of particles having an MD particle length of 5 μm or more, the aspect ratio, and the like were calculated.

[0088]

[Table 1]

As is clear from the results in Table 1, the resin molded article of the present invention has high strength, high impact, and has excellent vibration damping properties and barrier properties as compared with the conventional polyolefin resin. Is possible.

[0090]

The resin molded product of the present invention can be developed for various uses because of its high strength, high impact, and excellent vibration damping and barrier properties. For example, electrical / electronic related equipment, precision machinery related equipment It is suitable for office equipment, automobile / vehicle related parts, building materials, packaging materials, furniture, household goods, etc.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F071 AA14 AA15 AA20 AA43 AF08 AF12 AF20 AF23 BA01 BB05 BB06 BC03 4J002 BB031 BB051 BB071 BB081 BB121 BB131 BB141 BB171 BB201 BB211 BB221 BC031 BG041 BG04

Claims (8)

[Claims] 1. A polyolefin resin (A) of 50 to 99.9.
(B) is dispersed in the matrix of (A), and the particle length of (B) is represented by the following formula (A): A resin molded product characterized by satisfying (b). TD particle length / ZD particle length ≧ 1.1 (b) MD particle length / ZD particle length ≧ 1.1 (b) MD: flow direction of resin TD: perpendicular to the flow direction of resin, and Parallel to the molded product surface ZD: perpendicular to the resin flow direction and perpendicular to the molded product surface 2. The ratio of particles having a ratio of MD particle length / TD particle length of 5 or more to particles of the liquid crystalline resin (B) dispersed in the matrix (A) is as follows: The resin molded product according to claim 1, wherein the content is 10% by weight or more based on the total amount of B). 3. The liquid crystalline resin (B) having a particle size of MD of 5 μm or more in the particles of the liquid crystalline resin (B) is at least 15% by weight based on the total amount of (B). The resin molded article according to the above. 4. The resin molded product according to claim 1, wherein the resin molded product is obtained by injection molding. 5. The resin molded product according to claim 1, wherein the resin molded product is in the form of a film, sheet or tube obtained by press molding or extrusion molding. 6. The resin molded product according to claim 1, wherein the resin molded product is obtained by blow molding. 7. The resin molded article according to claim 1, wherein the resin molded article is used for a transport line, a storage container or an accessory thereof. 8. The resin molded product according to claim 1, wherein the resin molded product is used for an automobile interior material.