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Nonisocyanate polyurethane

A non-isocyanate, polyurethane technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of long residual time of isocyanate, non-volatile, difficult to eliminate odor, etc., to reduce human injury, long usable time, flexibility excellent effect

Inactive Publication Date: 2017-05-31
上海展辰涂料有限公司 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary two-component bright polyurethane coatings on the market are widely used in suites, handicrafts, cabinets, showcases, musical instruments and other high-end products, but they contain isocyanate, toluene, xylene and other substances harmful to human health, and toluene, xylene and isocyanate residues Long time, not easy to volatilize, and the smell is difficult to eliminate

Method used

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  • Nonisocyanate polyurethane
  • Nonisocyanate polyurethane
  • Nonisocyanate polyurethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 non-isocyanate polyurethane

[0038] A component (weight in kilograms):

[0039] raw material name Raw material consumption Acrylic Urethane Resin 70 Defoamer 0.3 Leveling agent A 0.1 Leveling agent B 0.3 Rheology Additives 0.3 Substrate wetting agent 1 N-butyl acetate 18 Propylene glycol methyl ether acetate 10 total 100

[0040] B component (weight in kilograms):

[0041]

[0042]

[0043] C component (weight in kilograms):

[0044] raw material name Raw material consumption N-butyl acetate 68 Propylene glycol methyl ether acetate 32 total 100

[0045] Production process: Component A: Add resin, defoamer, leveling agent, rheological additive, substrate wetting agent and some solvents and stir at high speed for 20 minutes until uniform → add the remaining solvent and stir at medium speed for 10 minutes to obtain A component. Component B: Mix etha...

Embodiment 2

[0051] Embodiment 2 non-isocyanate polyurethane

[0052] A component (weight in kilograms):

[0053] raw material name Raw material consumption Acrylic Urethane Resin 73 Defoamer 0.5 Leveling agent A 0.1 Leveling agent B 0.3 Rheology Additives 0.5 Substrate wetting agent 0.6 N-butyl acetate 15 Propylene glycol methyl ether acetate 10 total 100

[0054] B component (weight in kilograms):

[0055]

[0056]

[0057] C component (weight in kilograms):

[0058] raw material name Raw material consumption N-butyl acetate 70 Propylene glycol methyl ether acetate 30 total 100

[0059] Production process: Component A: Add resin, defoamer, leveling agent, rheological additive, substrate wetting agent and some solvents and stir at high speed for 20 minutes until uniform → add the remaining solvent and stir at medium speed for 10 minutes to obtain A component. Component B: Mix et...

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Abstract

The invention discloses nonisocyanate polyurethane which consists of the following raw materials: a component A, including 60-70% of crylic acid carbamic acid ester resin, 0.3-0.5% of a defoaming agent, 0.1-0.2% of a leveling agent A, 0.2-0.5% of a leveling agent B, 0.2-0.5% of a rheology aid, 0.5-1% of a base material wetting agent, 15-20% of n-butyl acetate, 15-20% of propylene glycol monomethyl ether acetate, with the total percentage being 100%; a component B, including 70-80% of ethanol, 10-20% of a cross-linking agent, 5-10% of a drier, 0.5-1% of an ultraviolet absorbent, with the total percentage being 100%; and a component C, including 60-70% of n-butyl acetate and 30-40% of propylene glycol monomethyl ether acetate, with the total percentage being 100%; the nonisocyanate polyurethane is prepared in a weight ratio of component A to component B and component C of 100:(40-50):(20-30). The nonisocyanate polyurethane disclosed by the invention has the characteristics of being high in hardness, good in fullness, high in gloss, good in leveling property, good in collapse resistance and excellent in chemical and weather resistance.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a non-isocyanate polyurethane. Background technique [0002] At present, ordinary two-component bright polyurethane coatings on the market are widely used in suites, handicrafts, cabinets, showcases, musical instruments and other high-end products, but they contain isocyanate, toluene, xylene and other substances harmful to human health, and toluene, xylene and isocyanate residues It lasts for a long time, is not volatile, and the smell is difficult to eliminate. With the improvement of people's material and cultural living standards, household products are no longer limited to general aesthetics and decorative effects, but pay more attention to health, comfort, environmental protection and other aspects. Therefore, it is particularly necessary to develop new furniture paint products that are benzene-free, do not contain isocyanate, and are harmless to human health, and have become a hot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G71/04C09D175/04C09D7/00
CPCC08G71/04C09D7/20C09D175/04
Inventor 陈允川周琼辉汤彪
Owner 上海展辰涂料有限公司
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