WO2005056631A1 - 二液硬化型高耐久性ポリウレタンエラストマー組成物 - Google Patents
二液硬化型高耐久性ポリウレタンエラストマー組成物 Download PDFInfo
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- WO2005056631A1 WO2005056631A1 PCT/JP2004/018462 JP2004018462W WO2005056631A1 WO 2005056631 A1 WO2005056631 A1 WO 2005056631A1 JP 2004018462 W JP2004018462 W JP 2004018462W WO 2005056631 A1 WO2005056631 A1 WO 2005056631A1
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- polyol
- heat resistance
- polyurethane elastomer
- elastomer composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
Definitions
- the present invention relates to a two-part curable, highly durable polyurethane elastomer composition.
- the present invention relates to a two-part curable, highly durable polyurethane elastomer composition having excellent heat resistance and wet heat resistance, low viscosity after two-part mixing, and good casting workability.
- Two-part curable polyurethane elastomer compositions are excellent in cured properties such as strength, elongation, elasticity, etc., and are used for waterproofing materials, flooring materials, pavement materials, adhesives, sealing materials and the like. Widely used for applications.
- the two-part curable polyurethane elastomer composition is prepared by mixing and stirring a curing agent mainly containing an active hydrogen-containing compound and a main agent mainly containing a polyisocyanate component, using a trowel, a spatula, a roller, or the like. Inject into the mold and cure.
- Examples of active hydrogen-containing conjugates to be reacted with a polyisocyanate component include polytetramethylene ether glycol obtained by ring-opening polymerization of tetrahydrofuran, propylene glycol, dipropylene glycol, glycerin, and trimethylolpropane.
- polyvalent alcohols such as ethylene oxide, propylene oxide, butylene oxide
- a polyether polyol such as polyoxyalkylene polyol obtained by addition polymerization of one or two or more kinds of oxides, and one kind of ethylene glycol, propylene glycol, diethylene glycol, butanediol, pentanediol, hexanediol, etc.
- malonic acid maleic acid, succinic acid, adipic acid, glutaric acid, sebacic acid, phthalic acid, isophthalic acid, terephthalic acid, etc.
- polyester polyols obtained by ring-opening polymerization of the obtained polyester polyols and kyprolatatatone, and the like.
- the cured product While using a polyether polyol as the active hydrogen-containing conjugate, the cured product has relatively good wet heat resistance, but has poor heat resistance, while polyester polyester is used. If the heat resistance is relatively good, the wet heat resistance is poor.
- Patent Document 1 JP-A-63-57626
- Patent Document 2 JP-A-1 203421
- Patent Document 3 JP-A-6-220157
- Patent Document 4 JP-A-7-102033
- An object of the present invention is to provide a two-part curable, highly durable polyurethane elastomer composition which has improved heat resistance and wet heat resistance and improved viscosity after mixing of two parts to a viscosity suitable for casting workability. It is to provide a polyol particularly suitable for the intended composition, using this Another object of the present invention is to provide the composition having excellent heat resistance, wet heat resistance and casting workability. Means for solving the problem
- a polyol (X) having a molecular weight of 00-1500 was added to castor oil fatty acid or 12-hydroxystearic acid, Alternatively, a polyol (A) having a hydroxyl value of 25 to 55 obtained by reacting a condensate of these fatty acids and a hydroxyl value obtained by ring-opening the epoxidized fatty acid ester with a polyhydric alcohol has a hydroxyl value of 100.
- the use of 500 polyols (B) provides excellent heat resistance and heat and moisture resistance, and has a low viscosity after mixing two components and good castability. The inventors have found that one composition can be obtained, and have reached the present invention.
- the present invention relates to a two-part curable polyurethane elastomer composition
- a polyisocyanate component (i) and an active hydrogen-containing conjugate compound (ii) wherein the active hydrogen-containing compound component ( ii) Strength Polyol (A) obtained by reacting castor oil fatty acid or 12-hydroxystearic acid or a condensate of those fatty acids with polyol (X) having a molecular weight of 400 to 1500 and having a hydroxyl value of 25 to 55 (A)
- the polyol (X) is a polyester polyol obtained by condensing trimethylolpropane with adipic acid and a dihydric alcohol, and the polyol is based on 100 parts by weight of the polyol (A).
- the proportion of all (B) One component of 50 parts by weight, excellent in heat resistance and heat and moisture resistance, low in viscosity after mixing two components, and good in casting workability
- Two component curing type highly durable polyurethane elastomer composition More preferably, it is a two-part curable, highly durable polyurethane elastomer composition having a hardness at 23 ° C. of JIS A 90 or less and an elongation at break of 50% or more.
- the two-component curable, highly durable polyurethane elastomer composition of the present invention has a low viscosity after the two-component mixing, so that when the two-component mixing is performed using a trowel, a spatula, a roller, or the like, bubbles are involved. Even in the case of pouring into a mold, it is possible to fill fine voids without entrainment of bubbles.
- the cured product since the hardness of the cured product is low and the elongation at cutting is large, the cured product has good physical properties and heat resistance. Excellent heat resistance and wet heat resistance.
- the active hydrogen-containing conjugate which is the main component of the curing agent, includes a polyol (X) having a molecular weight of 400 to 1500, a castor oil fatty acid or 12- A hydroxyl value obtained by reacting hydroxystearic acid or a condensate of these fatty acids with a polyol (A) having a hydroxyl value of 25-55, and a hydroxyl value obtained by ring-opening an epoxidized fatty acid ester with a polyhydric alcohol. Consists of 100-500 polyols (B).
- the polyol (X) is preferably a polyester polyol obtained by condensing trimethylolpropane with adipic acid and a dihydric alcohol.
- the dihydric alcohol used here include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, propylene glycol, butanediol, pentanediol, and hexanediol.
- the molecular weight of the obtained polyol (X) is 400 to 1500, preferably 500 to 1,000.
- Polyol (A) is prepared by adding polyol (X) and castor oil fatty acid or 12-hydroxystearic acid, or a condensate of these fatty acids, and adding a catalyst such as p-toluenesulfonic acid, if necessary, to a nitrogen gas. It can be obtained by reacting in a stream of air at a reaction temperature of 150 to 250 ° C. for several hours while distilling off by-product water out of the reaction system (for example, the method described in JP-A-1150086).
- the hydroxyl value of the polyol (A) is 25-55, preferably 30-50. If the hydroxyl value is less than 25, when the polyurethane elastomer composition is used, the composition will not be completely cured and the required cured physical properties cannot be obtained. When the hydroxyl value exceeds 55, when the polyurethane elastomer composition is used, the hardness at 23 ° C. exceeds 90 according to JIS A, so the elongation at break is reduced to less than 50%, and the physical properties of the cured product are not preferable.
- the polyol (B) used in the present invention is a polyol having a hydroxyl value of 100 to 500 obtained by ring-opening an epoxidized fatty acid ester with a polyhydric alcohol.
- the starting material of the polyol is a fatty acid ester.
- a vegetable oil or an animal oil containing an unsaturated fatty acid can be obtained by transesterification of an aliphatic alcohol having 110 carbon atoms.
- Vegetable and animal oils used include soybean oil, coconut oil, palm oil, castor oil, flaxseed oil, cottonseed oil, rapeseed oil, drill oil, sunflower oil, safflower oil, rice bran oil, olive oil, camellia oil, corn oil, and tallow , Lard, fish oil, whale oil and the like.
- Examples of the aliphatic alcohol used include methanol, ethanol, propanol, butanol, hexanol, heptanol, octanol, nonanol, decanol and the like. Preferably, they are methanol, ethanol and propanol.
- Fatty acid esters can also be obtained by directly esterifying unsaturated fatty acids such as oleic acid, linoleic acid, linolenic acid, and ricinoleic acid with the above aliphatic alcohols.
- Epoxy fatty acid esters are obtained by reacting the above fatty acid esters with, for example, hydrogen formate Z peroxide by an unsaturated bond by a known method to form epoxides.
- the ring opening of the epoxidized fatty acid ester uses a polyvalent alcohol having 2 to 12 carbon atoms, preferably 2 to 6 carbon atoms.
- a polyhydric alcohol examples include ethylene glycol, propylene glycol, butylene glycol, glycerin, trimethylolpropane, and the like.
- the ring opening reaction is carried out at an equivalent ratio of epoxy group to hydroxyl group of 5: 1 to 1: 5, preferably 2: 1 to 1: 2, and a reaction temperature of 80 to 120 ° C.
- Inorganic or organic carboxylic acids are used as catalysts.
- Preferred catalysts include sulfuric acid, phosphoric acid, formic acid, acetic acid and the like.
- the hydroxyl value of the polyol (B) is 100 to 500, preferably 150 to 400.
- the hydroxyl value is less than 100, the viscosity of the polyol is high and the casting workability is poor. If it exceeds 500, when a urethane elastomer composition is used, the hardness at 23 ° C exceeds 90 according to JIS A, so the elongation at break is reduced to less than 50%, and the physical properties of the cured product are poor.
- the ratio of the polyol (B) to 100 parts by weight of the polyol (A) is 5 to 50 parts by weight, preferably 7.5 to 40 parts by weight. If the amount is less than 5 parts by weight, the moisture and heat resistance of the polyurethane elastomer composition is insufficient.
- the amount exceeds 50 parts by weight, when a polyurethane elastomer composition is used, the hardness at 23 ° C exceeds JIS A of 90, so the elongation at break is reduced to less than 50%, and the physical properties of the cured product are poor.
- the polyisocyanate used in the present invention is, for example, 4,4, diphenylmethanediisocyanate (MDI-PH), polymeric MDI (MDI-CR), carbodiimide-modified MDI (liquid MDI), 2 Polyisocyanates such as tolylene diisocyanate (TDI) containing 65% or more of the 4 isomers, norbornane diisocyanate (NBDI), isophorone diisocyanate (IPDI), and hexamethylene diisocyanate And aliphatic polyisocyanates such as 4,4,4-dicyclohexyl methanediisocyanate (hydrogenated MDI) and xylylene diisocyanate (XDI). Of these polyisocyanates, MDI—PH, MDI-CR and liquid MDI are preferred!
- the polyisocyanate used in the present invention can be used alone or as a mixture.
- a prepolymer obtained by heating a part of the isocyanate group with a polyol at 60-100 ° C for several hours in a nitrogen stream is used. Can also be used.
- polyol examples include polyol (A), castor oil polyol, polybutadiene polyol, and the like. Also, if necessary, use low molecular weight polyhydric alcohol.
- low molecular weight polyhydric alcohols examples include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,4 butanediol, 1,3 butanediol, pentanediol, hexanediol, glycerin, trimethylolpropane, etc. .
- the two-part curable, highly durable polyurethane elastomer composition of the present invention may contain, as necessary, an organic solvent such as toluene, xylene, methyl ethyl ketone, or acetate, dibutyl phthalate, Plasticizers such as octyl adipate, octyl phthalate, diisononyl adipate, and diisononyl phthalate; high-boiling solvents such as chlorinated paraffins and petroleum hydrocarbon oils; phosphate ester-based flame retardants; and calcium carbonate, talc, and clay.
- an organic solvent such as toluene, xylene, methyl ethyl ketone, or acetate, dibutyl phthalate
- Plasticizers such as octyl adipate, octyl phthalate, diisononyl adipate, and diisononyl phthalate
- Sir Inorganic fillers such as titanium, carbon black and silica; stabilizers such as antioxidants and ultraviolet absorbers; moisture absorbers such as molecular sieves; and organic lead compounds such as lead octylate and lead naphthenate as curing catalysts.
- organic lead compounds such as lead octylate and lead naphthenate as curing catalysts.
- an organic tin compound such as dibutyltin dilaurate may be added.
- the method for producing the two-part curable, highly durable polyurethane elastomer composition of the present invention includes, but is not particularly limited to, a stirrer, a low-pressure casting machine, a spray machine, and the like at a fixed ratio of an active hydrogen component and a polyisocyanate component. It is obtained by mixing uniformly at room temperature and curing at room temperature to 120 ° C.
- Sobamol 750 Polyol having a hydroxyl value of 315 (mgKOHZg) and a viscosity of 1000 (mPa's) (oil-based polyol: manufactured by Cognis Japan KK).
- D-3000 A diol having a hydroxyl value of 38 (mgKOH / g) (manufactured by Mitsui Takeda Chemical Co., Ltd.).
- MN-300 Triol having a hydroxyl value of 300 (mgKOH / g) (manufactured by Mitsui Takeda Chemical Co., Ltd.).
- Epol a polyol having a number average molecular weight of 1400 and a viscosity of 110,000 (mPa ⁇ s) (manufactured by Idemitsu Petrochemical Co., Ltd.).
- Cosmonate LL Liquid MDI (manufactured by Mitsui Takeda Chemical Co., Ltd.).
- Cosmonate M-200 MDI-CR (manufactured by Mitsui Takeda Chemical Co., Ltd.).
- the active hydrogen-containing compound and the polyisocyanate component are uniformly stirred and mixed at a predetermined ratio for 3 minutes, and after defoaming, poured onto a slate plate having a spacer attached so as to have a thickness of 2 mm. After curing at 10 ° C for 10 hours and curing at 23 ° C for 7 days, physical property tests were performed.
- the active hydrogen-containing compound and the polyisocyanate component adjusted to 25 ° C were uniformly mixed and stirred at a predetermined ratio for 3 minutes, and then measured with a B-type viscometer.
- the mixture was poured into a 100 mm ⁇ 100 mm ⁇ 3 mm mold, cured, demolded, and evaluated by the appearance of the cured product.
- the foam is largely entrained or does not flow to the bottom.
- the 2 mm sheet whose initial hardness was measured was left in an atmosphere at 150 ° C. for 2000 hours, then left in a constant temperature room at 23 ° C. for 7 days, and the hardness was measured according to JIS K 6253.
- the 2mm sheet for which the initial hardness was measured was left for 100 hours in an atmosphere of steam pressure of 121 ° C, 100% RH and 2 atm, then left in a constant temperature room at 23 ° C for 7 days, and evaluated by changes in appearance. .
- a reaction vessel is charged with 1,000 parts of a polyester polyol having a molecular weight of 1,000 obtained by condensing trimethylolpropane, ethylene glycol and adipic acid, 4 parts of 12-hydroxystearic acid 238, and 3 parts of p-toluenesulfonic acid, and then flowing under a nitrogen gas stream.
- the reaction was conducted at a reaction temperature of 160-200 ° C for 8 hours, and the by-product water was distilled out of the distillation pipe system.
- the reaction product was cooled, washed with water and dehydrated to obtain a polyol (A-1).
- the obtained polyol (A-1) had a hydroxyl value of 34 and a viscosity of 5000 (mPa'sZ25 ° C).
- the obtained polyol (A-4) had a hydroxyl value of 16, and a viscosity of 71,800 (mPa ⁇ s / 25 ° C).
- Example 1 In the same manner as in Example 1 except that 25 parts of Sobamol 750 and 21.7 parts of Cosmonate M-200 were used in Example 1, the mixed viscosity, workability, hardness of the cured product, elongation at break, heat resistance And the wet heat resistance were measured. The test results are shown in Table-1.
- Example 1 In the same manner as in Example 1 except that 40 parts of Sovamol 750 and 27.5 parts of Cosmonate M-200 were used in Example 1, the mixed viscosity, workability, hardness of the cured product, elongation at break, heat resistance And the wet heat resistance were measured. The test results are shown in Table-1.
- a polyol (A-1) was synthesized in Example 2 in the same manner as in Example 2, except that 100 parts of the polyol (A-2) obtained in Synthesis Example 2 and 22.9 parts of Cosmonate M-200 were used.
- the mixed viscosity, workability, hardness of the cured product, elongation at break, heat resistance and wet heat resistance were measured. The test results are shown in Table-1.
- Example 2 In the same manner as in Example 2 except that Cosmonate M-200 was replaced with Cosmonate LL23.7 parts in Example 2, the mixture viscosity, workability, hardness of the cured product, elongation at break, heat resistance and heat and humidity resistance were measured. It was measured. Table 1 shows the test results.
- Example 2 In the same manner as in Example 2 except that Cosmonate M-200 in Example 2 was changed to 27.0 parts of the polyisocyanate component obtained in Synthesis Example 5, the mixed viscosity, workability, hardness of the cured product, and cutting were performed. The elongation, heat resistance and wet heat resistance were measured. The test results are shown in Table-1.
- a polyol (A-1) was synthesized in Example 2 in the same manner as in Example 2 except that 100 parts of the polyol (A-3) obtained in Synthesis Example 3 and 24.0 parts of Cosmonate M-200 were used. The mixed viscosity, workability, hardness of the cured product, elongation at break, heat resistance and wet heat resistance were measured. The test results are shown in Table-2. Comparative Example 2
- Polyol (A-1) was synthesized in Example 2 In the same manner as in Example 2, except that 100 parts of the polyol (A-4) obtained in Synthesis Example 4 and 18.3 parts of Cosmonate M-200 were used, The mixed viscosity, workability, hardness of the cured product, elongation at break, heat resistance and wet heat resistance were measured. The test results are shown in Table-2.
- Example 2 In the same manner as in Example 1, except that 2.5 parts of Sobamol 750 and 9.8 parts of Cosmonate M-200 were used in Example 1, the mixed viscosity, workability, hardness of the cured product, elongation at break, Heat resistance and wet heat resistance were measured. Table 2 shows the test results.
- the polyurethane elastomer compositions of Examples 1 to 6 are excellent in heat resistance and wet heat resistance of the cured product, and have low viscosity after mixing the two components. And the physical properties of the cured product are excellent.
- Comparative Example 1 the hardness of the cured product after the heat resistance test was reduced from JIS A 30 to 10, and the heat resistance was poor.
- Comparative Example 2 the viscosity after mixing was high and the casting workability was poor.
- the wet heat resistance deteriorates.
- Comparative Example 3 has poor wet heat resistance.
- Comparative Example 4 the hardness of the cured product was high and the elongation at break was low. To do.
- Comparative Example 5 has high viscosity after mixing and poor casting workability.
- Comparative Example 6 has poor heat resistance and wet heat resistance.
- the two-part curable, highly durable polyurethane elastomer composition of the present invention has a low viscosity after the two-part mixing, so that when the two-part mixing is performed with an iron, a spatula, a roller, or the like, the mold into which the entrainment of the foam is reduced. Even in the case of injection, it is possible to fill fine voids where bubbles are not involved. Further, since the hardness of the cured product is low and the elongation at cutting is large, the physical properties of the cured product are good. Further, the present invention provides a highly durable polyurethane elastomer composition having excellent heat resistance and wet heat resistance, and has extremely high industrial applicability.
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/582,356 US7598336B2 (en) | 2003-12-12 | 2004-12-10 | Two-part curing high-durable polyurethane elastomer composition |
JP2005516185A JP4527060B2 (ja) | 2003-12-12 | 2004-12-10 | 二液硬化型高耐久性ポリウレタンエラストマー組成物 |
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JP2003414385 | 2003-12-12 | ||
JP2003-414385 | 2003-12-12 |
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WO2005056631A1 true WO2005056631A1 (ja) | 2005-06-23 |
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PCT/JP2004/018462 WO2005056631A1 (ja) | 2003-12-12 | 2004-12-10 | 二液硬化型高耐久性ポリウレタンエラストマー組成物 |
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US (1) | US7598336B2 (ja) |
JP (1) | JP4527060B2 (ja) |
CN (1) | CN100471892C (ja) |
WO (1) | WO2005056631A1 (ja) |
Cited By (3)
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JP2008255216A (ja) * | 2007-04-04 | 2008-10-23 | Auto Kagaku Kogyo Kk | 2液ウレタン系硬化性組成物及びそれを用いた床材用接着剤及び補修剤並びに床材の施工方法及び補修方法 |
US7829003B2 (en) * | 2006-04-20 | 2010-11-09 | Basf Corporation | Method of making an article |
CN106366284A (zh) * | 2016-09-12 | 2017-02-01 | 万华化学集团股份有限公司 | 一种聚氨酯弹性体组合料及其制备方法,聚氨酯弹性体的制备及其应用 |
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EP1846046B1 (en) * | 2005-02-04 | 2010-11-10 | The Procter & Gamble Company | Absorbent structure with improved water-absorbing material |
BR112012015181B1 (pt) * | 2009-12-21 | 2020-03-10 | Basf Se | Processo para fabricar uma estrutura de pavimento de compósito, e, estrutura de pavimento de compósito |
KR101453333B1 (ko) * | 2010-04-22 | 2014-10-22 | 디아이씨 가부시끼가이샤 | 2액 경화형 발포 폴리우레탄 수지 조성물, 그것을 사용하여 이루어지는 성형체, 및 신발창 |
JP5639787B2 (ja) * | 2010-05-28 | 2014-12-10 | 株式会社大林組 | 遮水シート用止水剤、及び、遮水シートの補修工法 |
CN102558498B (zh) * | 2012-01-04 | 2013-09-18 | 山西兆信生物科技有限公司 | 煤矿用聚氨酯加固和充填材料 |
BR112015004928B1 (pt) * | 2012-09-26 | 2021-03-02 | Dow Global Technologies Llc | vedante a base de poliuretano e unidade isolada |
US10414859B2 (en) | 2014-08-20 | 2019-09-17 | Resinate Materials Group, Inc. | High recycle content polyester polyols |
CN115093821B (zh) * | 2017-12-25 | 2024-07-12 | 井上株式会社 | 层叠体和车辆用内饰材料的表皮材料 |
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- 2004-12-10 JP JP2005516185A patent/JP4527060B2/ja active Active
- 2004-12-10 US US10/582,356 patent/US7598336B2/en not_active Expired - Fee Related
- 2004-12-10 CN CNB2004800415127A patent/CN100471892C/zh active Active
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CN106366284A (zh) * | 2016-09-12 | 2017-02-01 | 万华化学集团股份有限公司 | 一种聚氨酯弹性体组合料及其制备方法,聚氨酯弹性体的制备及其应用 |
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CN1926166A (zh) | 2007-03-07 |
US20070083027A1 (en) | 2007-04-12 |
US7598336B2 (en) | 2009-10-06 |
JP4527060B2 (ja) | 2010-08-18 |
JPWO2005056631A1 (ja) | 2007-08-23 |
CN100471892C (zh) | 2009-03-25 |
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