DE2312215A1 - FILLING MATERIAL - Google Patents

Description

DIPL.-CHEM. DR. ALFRED SCHÖN

PATENT LAWYERS

S / L 34-2

Lake Ch.end.cal Go., 250 North Washtenaw Avenue, Chicago, USA

Filling compound

The invention relates to masses that are particularly useful as filling materials suitable on a wide variety of surfaces.

Various filling materials have already been developed, for example for mending dents and scratches or other indentations in surfaces have been used. However, such materials have a number of disadvantages on, among other things, some of these materials are limited to the use of a certain type of surface, for example on wood. Furthermore, a considerable part of the known filling materials is liquid or paste-like masses that are difficult to handle, wherein In addition, a considerable amount of rope is lost when they are used. Furthermore, their drying or curing times are relative long. The materials previously developed in the form of pens also have the disadvantage that they are in one do not remain dry or require long drying or curing times after application.

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Through the invention, ^{compounds are made available which can be used as I 1} UIl- or repair materials on practically any surface, for example on surfaces made of metals, plastics, ceramic materials, wood, glass, rubber, leather or plastic sheets. The masses are solid at ordinary temperature or room temperature and can be produced in a simple manner, whereby they retain their oma, for example in the form of a pen, so that their use is made considerably easier. Under normal conditions, the masses in the form of a pencil have a dry thin surface film or a thin surface skin, so that their handling is simple and convenient and the hands, etc. are not soiled. After application, the masses dry quickly, usually as a result of evaporation of the solvent, but generally, depending on the particular mass, by oxidation. The compositions according to the invention, however, differ markedly from the compositions whose drying is essentially based on oxidation, since it takes hours for these known compositions to dry out. The compositions according to the invention dry in a few minutes or in even shorter periods of time. There is no waste, since essentially the exact amount of a mass according to the invention that is required to fill an area on a surface can be applied by simple rubbing in one operation, whereby the area to be filled is filled. The compositions can be made in any desired color and can be formulated to be resistant to attack by organic solvents, detergents, mild acids, alkalis, or the like. The masses dry out to form hard, but flexible or rubber-like bodies, which can expand and contract together with the surface to which they have been applied. This property contributes to its fatigue strength after application to a surface,

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The compositions according to the invention contain as essential constituents an organic resinous film-forming material, an organic solvent in which the organic resinous film-forming material is soluble, as is a waxy material which is essentially soluble in the organic solvent is insoluble at least at ordinary temperature or room temperature. Small amounts of various complementary Ingredients such as pigments, fillers, drying accelerators, plasticizers or the like can be used be added to the mass to change its properties.

A variety of organic resinous film-forming materials, both synthetic and natural organic resinous film-forming materials can be used in the formulation the compositions according to the invention can be used. Examples of synthetic organic resinous film-forming materials, which are suitable according to the invention are acetal resins, alkyd resins, allyl resins, amino resins, cellulose esters and ethers, Coumarone / indene resins, styrene / butadiene resins, epoxy resins, polyamides, Phenolic resins, vinyl resins, polycarbonates, urea resins, polyterpene resins, acrylic resins, polyurethanes and the like as well Copolymers of the monomeric constituents of the resins given above. Compatible mixtures of such resins and Copolymers can also be used. Of the natural resins that are suitable for practicing the invention, are rosin, various modified turpentine esters and turpentine polymers, copal or the like. Mixtures Synthetic and natural resins' can of course be used. The resin or resins can be mixed with stabilizers, Plasticizers or lubricants are compounded or chemically modified in the process, that they take on the desired properties. Excellent Results are available using a polymerized phenolic resin sold under the trademark Resin 2432

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(Union Carbide) is marketed, is also suitable an oil-modified polyurethane resin, which is used in the Commercially available under the designation XP 1434 (Spencer-Kellogg).

The waxy materials which are used according to the invention can, for example, from paraffin waxes, vegetable and animal waxes, such as, for example, camauba wax, beeswax or candelilla, synthetic waxes, carboxylic acids and fatty acids with a higher molecular weight with a waxy character, such as, for example, stearic acid, melissic acid or the like , meltable soaps such as triethanolamine stearate, and hydrogenated animal and vegetable oils such as hydrogenated cottonseed oil, hydrogenated lard oil, hydrogenated corn oil or the like, these oils being hydrogenated to such an extent that they have a melting point of at least 60 ^° C ( HOF) own, exist. Excellent results are obtained with an oxidized micrystalline wax marketed under the trademark "Petronauba Wax C-8500" (Bareco). However, compositions which contain carnauba or candelilla wax as an essential component are particularly suitable.

The waxy materials should of course match the ones used organic resinous film-forming materials be compatible or a homogeneous mixture with these materials form. The waxy materials should also be characterized in that they are at least common Temperature or room temperature are insoluble or sparingly soluble in the organic solvents used for Formulation of the masses are used. The waxy material, on the other hand, should be in the solvent at elevated levels Temperatures soluble or substantially soluble. In this way there is an intimate mixing of the waxy material with the organic resinous film-forming material

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possible, whereby on cooling a gel-like or paste-like Consistency of the mass is obtained, which causes absorption of the solvent. In this way one becomes essentially homogeneous pliable mass obtained, which is easily deformed, extruded, pressed or otherwise in a self-supporting lorm, such as a pen, transferred can be.

The organic solvents in the present invention can be used, having at vorteilhaftesten boiling point zwisohen about 120 and about 300 ⁰ C and in particular! Between about 175 and about 220 ⁰ C, the Verdampfungsgesohwindigkeiten in the order of about 10 to about 700 minutes and preferably from from about 30 to about 150 minutes as determined by the Shell Evaporation Test. Examples of organic solvents which can be used according to the invention are aliphatic alcohols such as amyl alcohol, cyclohexanol, trideeyl alcohol and methyl isobutyloarbitol, esters such as amyl acetate, hexyl acetate, isobutyl isobutyrate, sec.-octyl acetate and cellosolve acetate, ethers such as cellosolve, for example Ethyl cellosolve, butyl cellosolve and benzyl ethers, ketones, such as, for example, diisobutyl ketone, ethyl butyl ketone and cyclohexanone, aromatic hydrocarbon solvents, for example toluene, xylenes, tetralin and nitrobenzene, petroleum solvents, such as, for example, white spirit, gasoline or the like, and mixtures of turpentine, kerosene and naphtha the compounds given above. Excellent results can be obtained using commercially available mixtures of aromatic hydrocarbon solvents, such as those sold under the trademarks SC-100 and SC-150 (Esso Standard). Generally, the organic solvent is added as a separate component in the formulation of the compositions. In the

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In cases in which the organic resinous film-forming material used is already contained in an organic solvent, no further addition of a solvent may be necessary. A specific example of such a resin / solvent product is that marketed under the trademark F-77 60 MS (Spencer-Kellogg). The product consists of 60 fo an "oil-modified polyurethane in white spirit".

As already mentioned, the compositions according to the invention can optionally colored to match the surface to which they are to be applied or specific To meet the consumer's requirements. The coloring materials or pigments used can be both inorganic as well as organic in nature, typical examples of inorganic Pigments that can be used are black iron oxide, red iron oxide, copper bronze, chromium oxide, titanium dioxide, Cobalt oxide and cadmium sulfide. Examples of organic pigments are phthalocyanine green * Hansa yellow, alizarin brown, Benzidine yellow, pyrazolone, indanthrone and the like.

As mentioned further above, the masses have in deformed form, for example in one by extrusion, prepressing or the like produced self-retaining form, for. Example in the form of pencils, a dry thin surface film or a surface hits. In those cases where there is a drying oil, the film or the Skin mainly due to the oxidation of the surface through contact with air as well as the evaporation of part of the Solvent returned. In those cases where in the absence of a drying oil, the film or skin results from evaporation of some of the solvent the exposed areas of the pen. This film forms one

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Barricade or a skin or layer that is essentially impermeable to the passage of air or other gases is. As mentioned, this skin makes the outer surface dry. In order to "favor the formation of the skin or the film, can produce small amounts of various air-oxidizable film-forming agents Materials are used. Examples of such Materials are the so-called drying oil and semi-drying oil fatty acids, which are different from linseed oil, dehydrated Derive castor oil, soybean oil, perilla oil, oitizika oil and eung oil can, Neofat No. 19 acids, consisting essentially of unsaturated fatty acids with 20 to 22 carbon atoms with 3 or 4 double bonds as well as smaller amounts of other unsaturated ones Fatty acids exist. Derivatives of such carboxylic acids are the drying oils and semi-drying oils (hereinafter commonly referred to as drying oils), such as flaxseed oil, dehydrated castor oil, tung oil, Perilla oil, oitizika oil, certain fish oils and the like. Such oils are of course triglycerides or, in other words, polyhydric alcohol esters that are fully esterified drying oil and semi-drying oil fatty acids which have been enumerated above. Instead of the triglycerides, partial esters can be used with other polyhydric alcohols, for example the monoglycerides and diglycerides of the drying ones Oil and semi-drying oil fatty acids as well as the partial and full esters of such acids with glycols, polyglycols, Polyglycerines, sugar alcohols such as sorbitol, mannitol, sorbitan, Mannitol, etc. Other derivatives of the unsaturated fatty acids mentioned are their simple alcohol esters such as ethyl linoleate, butyl linoleate and the like. All such Acids or their derivatives are characterized by the fact that they form a dry when they come into contact with air Films or dry skin.

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Other supplementary ingredients that can be used to advantage are drying accelerators, oxidation inhibiting agents and, as mentioned above, plasticizers. The drying accelerators can, for example, be made from cobalt acetate, Manganese acetate, cobalt hydrate, cobalt naphthenate or other cobalt or manganese salts exist. The drying accelerator serves to strengthen the regression of the film or the skin on the mass after the film or the skin on the end of a stick before applying the mass to a Surface has been removed. To the storability of the To increase mass it is sometimes beneficial to add antioxidants. A suitable remedy for this Purpose is sebum, with common beef suet being preferred. Examples of plasticizers are tricresyl phosphate and polypropylene glycols, such as polypropylene glycols with a molecular weight of about 2000.

Additionally, various fillers can act as oil absorbents and body-building substances serve to be added to the masses. The fillers are generally more inorganic You can choose from a large group will. Examples are talc, barium sulfate, calcium carbonates Diatomaceous earth, carbon black, bentonite and the like. It is preferable to use fillers that have pigment properties have, such as titanium dioxide or carbon black. If the filler is not the color you want, then ground how mentioned above wuixle, pigments added.

Even if the proportions are based on the organic resinous film-forming material, waxy material and organic solvents are variable, so however, the proportions generally fall in the range of from about 3 to about, based on weight

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80%, especially about 20 to about 50% by weight of the inorganic resinous film-forming material, 10 to about 95% by weight, especially about 40 to about 80% by weight of the waxy material, and about 2 to about 25 $, especially about 8 to about 20% by weight of the organic solvent. In this way a moldable or extrudable self-adhering solid mass is obtained. It is particularly preferable to use as little of the organic solvent as possible. The organic solvent appears to be taken up and absorbed by the wax or waxy component. The supplementary ingredients make up only a small proportion, for example on the order of about 0.1 to 1 to about 10 weight, usually about 0.5 to about 5 feet, of the mass.

The following examples explain compositions according to the invention according to the present invention. It should be noted that various changes can be made for example, one can use other organic resinous film-forming materials, other organic solvents, others Use waxes, other pigments, etc. and change the proportions comply with the supplementary components. All details relate to weight.

example 1

Oxidized microcrystalline wax

(Petronauba-Wax C-8500) 10

Phenolic resin (Resin 2432) 10

Solvent (SC-100) 5

Pigment ■ 2

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Example 2

Oxidized microcrystalline wax

(Petronauba Wax C-8500) 5

Phenolic resin (Resin 2432) 15

Solvent (SG-100). 4th

Pigment ■ 2

Example 3

Acra wax - 5

Candelilla wax 10

Phenolic resin (Resin 2432) 5

Solvent (SC-1.00) 4

Example 4

Gandelilla wax 10

Acrylic resin (B-67, Rohm & Haas) 3

Polyurethane resin, modified with oil (XP-1434) 3

Polyurethane resin (F-77 60 MS) (60 fo oil-modified

fied polyurethane in white spirit) 10

Example 5

Candelilla wax ~ Η

Polyurethane resin, modified with oil (XP-1434) 4

Acrylic resin (B-67) 2

Solvent (SC-I50). .. 2

Titanium dioxide 0.5

Example 6

Candelilla wax 15

Beeswax. 5

Phenolic resin 10

iDitanium dioxide 10

Solvent (SC-150) 3

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Example 7

Camauba 14

Polytung (Degan Oil Co.) 3

Polypropylene Glycol 2025 (Union Carbide) 3

Solvent (SC-150). 2

Acrylic resin- (B-67) 1

Example 8

Carnauba wax 10

Beeswax 10

Phenol / formaldehyde resin 5

Solvents. 2

Titanium dioxide '8

Example 9

CarnaulDa wax 14

Flax seed oil 3

Trilcce sy lphos phat 3

Solvent (SC-150) 1

Acrylic resin (B-67) 1

Example 10

Candelilla Vfechs 6

Polymerized mixture of 1 part tung oil

with 2 parts of phenolic resin 3

Solvent (SC-100) 2

Pigment 1

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Example 11

Candelilla wax ■ 10

M resin polymer from equal parts

Phenolic acid (Bakelite 2432), tung oil and

Epoxy resin (Shell Epoxy 828), heated to

230 to 240 ⁰ C for a period of time

from 1 to 1 1/2 hours' 10

Solvent (SC-150) 2

Example 12

Candelilla wax 10

Oil modified polyurethane resin (P-77 6OMS) 10

Solvent (SC-100) 0.5

Aluminum powder 2

Acrylic resin (B-67) 2

Example 13

Carnauba Waehs 15

Acrylic resin (B-67) 3

Flaxseed oil 3

Soot 1

Amyl alcohol 2

Example 14

Candelilla wax 14

Phenolic resin (Resin 2432) 4

Titanium dioxide 1

Cellosolve 1

Solvent (SC-150) 1.5

For use, the protective film is peeled off the end of a stick of the filler or repair compound. The pen will then firmly against the scratch on the surface to be repaired

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rubbed. The mass is then most conveniently by means of a Spatula or the like in the correct position using the flat end of the spatula and the spatula becomes clean weight after every movement. Excess mass is removed with the edge of the spatula. The repair area can be repaired by wiping with a cloth or through light rubbing with a leflon-coated edge of a spade to be polished. Mach the application forms again a skin on the end surface of the pen that acts as a protective coating and can be removed again by peeling or the like when the stick is to be used again.

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Claims (6)

Claims 1. Mass that can be used, especially as a pull or repair mass for mending scratches or the like on surfaces suitable for restoring the uniformity of such surfaces, this hating off being at room temperature consists essentially of homogeneous pesticide with such a consistency that the mass becomes self-cohesive Shape is deformable, which can be used under self-consumption and maintains its shape when held in the hand, characterized in that the mass as essential components a) about 3 to about 80 weight percent organic resinous film-forming material, b) about 2 to about 25 weight percent organic solvent in which the resinous film-forming material is soluble at room temperature, the solvent having a boiling point between about 120 and about 30O ⁰ C, and c about ¹ to about 95 weight ^ of a waehsartigen material which is substantially insoluble in the organic solvent at room temperature, contains) 10 being the surface of the mass in its self-cohesive manner Shape feels dry to the touch, and the mass in this form is suitable for scratching or the like by rubbing to be applied in a surface, and is also able to contribute to the action of the atmosphere Room temperature to give a permanent hard filling in a scratch or the like, which the uniformity restores the surface. 40 9838/091 1 2. Mass after. Claim 1, characterized in that the Solvent an aromatic hydrocarbon solvent is. 3. Composition according to claim 1, characterized in that it is in the form of a pen with the usual size and shape for a manual handling is available. 4. Composition according to claim 1, characterized in that the waxy material consists of candelilla or carnauba waehs. 5. Composition according to claim 1, characterized in that it consists of about 14 parts by weight of candelilla wax, approximately Parts by weight of an oil modified polyurethane resin, approximately 2 parts by weight of an acrylic resin, about 2 parts by weight of an aromatic hydrocarbon solvent and about 1 part by weight of a pigment ". 6. Composition according to claim 1, characterized in that it consists of about 14 parts by weight of carnauba wax, about 3 parts by weight Flaxseed oil, approximately 1 part by weight of a transforming agent Acrylic resin, about 3 parts by weight of a plasticizer for the resin and approximately 1 part by weight of solvent. 4098 38/09