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Anti-yellowing polyurethane composite adhesive

A technology of polyurethane and composite glue, which is applied in the field of composite glue, and can solve problems such as unrecoverable, unreachable polyurethane products, and affecting product appearance.

Active Publication Date: 2012-10-17
ZHEJIANG DUOBANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the light-colored textiles compounded by the polyurethane composite glue supplied on the market will turn yellow to varying degrees after being washed many times and exposed to the sun. After turning yellow, it cannot be recovered, which affects the appearance of the product
[0003] The white windbreaker and white terry cloth composite bedding exported to the European Union have higher requirements on yellowing, requiring a yellowing value of 4 or more, and the current polyurethane products cannot meet this requirement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of anti-yellowing polyurethane composite adhesive, which is composed of the following parts by weight: 160 parts of toluene, 150 parts of dimethyl carbonate, 598.5 parts of phthalic anhydride polyester polyol, 16 parts of polytrimethylene phthalate, trimethylol 1.63 parts of propane, 65 parts of toluene-2.4-diisocyanate, 1.2 parts of 1.3-butanediol, 1.2 parts of 1.4-butanediol, 3 parts of UV light stabilizer Loxiol 3806, 0.15 parts of antioxidant 1010 and 81083.02 parts of organic bismuth .

[0018] The preparation method of the above-mentioned anti-yellowing polyurethane composite adhesive is as follows: take 160 parts of toluene, 598.5 parts of phthalic anhydride polyester polyol, 16 parts of polytrimethylene phthalate, 1.63 parts of trimethylolpropane, and 65 parts of toluene-2.4-diisocyanate , 3 parts of UV light stabilizer Loxiol 3806, 1.2 parts of 1.4-butanediol, 0.15 parts of antioxidant 1010 and 3.02 parts of organic bismuth 8108 are fully mixed, heated t...

Embodiment 2

[0020] A kind of anti-yellowing polyurethane composite adhesive, which is composed of the following parts by weight: 160 parts by weight of toluene, 150 parts of dimethyl carbonate, 598.5 parts of phthalic anhydride polyester polyol, and 16 parts of 1.3-butanediol polyphthalate , 1.63 parts of trimethylolpropane, 65 parts of toluene-2.4-diisocyanate, 1.2 parts of 1.3-butanediol, 1.2 parts of 1.4-butanediol, 0.15 parts of antioxidant 1010, 3 parts of UV light stabilizer Loxiol 3806 and Organic bismuth 8108 3.02 parts.

[0021] The preparation method of the above-mentioned anti-yellowing polyurethane composite adhesive is as follows: 160 parts of toluene, 16 parts of 1.3-butylene phthalate, 1.63 parts of trimethylolpropane, 65 parts of toluene-2.4-diisocyanate, antioxidant 10100.15 parts, 1.2 parts of 1.4-butanediol, 3 parts of UV light stabilizer Loxiol 3806 and 81083.02 parts of organic bismuth are fully mixed, heated to 75-80°C, and kept at this temperature for 15 minutes, th...

Embodiment 3

[0023] A kind of anti-yellowing polyurethane composite adhesive, which is composed of the following parts by weight: 160 parts by weight of toluene, 150 parts of dimethyl carbonate, 598.5 parts of phthalic anhydride polyester polyol, and 16 parts of 1.3-butanediol polyphthalate , 1.63 parts of trimethylolpropane, 65 parts of toluene-2.4-diisocyanate, 1.2 parts of 1.3-butanediol, 1.2 parts of 1.4-butanediol, 0.15 parts of antioxidant 1010, 3 parts of UV light stabilizer Loxiol 3806, Catalyst CAT S102 1.5 parts and organic bismuth 8108 3.02 parts.

[0024] The preparation method of the above-mentioned anti-yellowing polyurethane composite adhesive is as follows: Take 160 parts of toluene, 598.5 parts of phthalic anhydride polyester polyol, 20 parts of 1.3-butanediol dibenzoate, 1.63 parts of trimethylolpropane, toluene-2.4- 65 parts of diisocyanate, 1.2 parts of 1.4-butanediol, 16 parts of polyphthalate 1.3-butanediol, 3 parts of UV light stabilizer Loxiol 3806, 1.5 parts of cat...

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PUM

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Abstract

The invention discloses an anti-yellowing polyurethane composite adhesive, belonging to the technical field of bonding agents. The anti-yellowing polyurethane composite adhesive comprises the substances in parts by weight: 160 parts of toluene, 150 parts of dimethyl carbonate, 598.5 parts of anhydride polyester polyol, 16 parts of polyphenyl phthalate polyol ester, 1.63 parts of trimethylolpropane, 65 parts of toluene-2.4-diisocyanate, 1.2 parts of 1.3-butanediol, 1.2 parts of 1.4-butanediol, 0.15 part of antioxidant, 3 parts of uvioresistant light stabilizer Loxiol 3806 and 3.02 parts of organic bismuth. After the composite adhesive is used for bleach textile, the color of the textile is not obviously changed after washing and drying in sun are carried out multiple times; and after the anti-yellowing polyurethane composite adhesive is tested by the international authoritative certification body ITS, the result proves that the yellowing value reaches 4-4.5 which meets the standard of exporting European Union areas.

Description

technical field [0001] The invention belongs to the technical field of composite glue, and in particular relates to a yellowing-resistant polyurethane composite glue. Background technique [0002] At present, the light-colored textiles compounded by the polyurethane composite glue supplied on the market will turn yellow to varying degrees after being washed many times and exposed to the sun. [0003] White trench coats and white terry-cloth composite bedding exported to the EU have higher requirements for yellowing, requiring a yellowing value of 4 or more. Current polyurethane products cannot meet this requirement. Contents of the invention [0004] The object of the present invention is to provide a kind of anti-yellowing polyurethane composite adhesive, the requirement of the composite adhesive for yellowing meets the export requirement of EU. [0005] A kind of anti-yellowing polyurethane composite adhesive, which is composed of the following parts by weight: 160 part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C08G18/76C08G18/66C08G18/42C08G18/32
Inventor 吴朋钱
Owner ZHEJIANG DUOBANG CHEM