Coating composition

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United States of America

PATENT NO 12180387
APP PUB NO 20210277277A1
SERIAL NO

17258487

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Abstract

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The present invention relates to a coating composition, a coating method and use of the composition, and a product coated with the coating composition. The coating composition comprises: (a) an isocyanate-reactive component comprising: (a1) at least one polyaspartic ester, and (a2) optionally a polyetheraspartic ester; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer having an isocyanate group equivalent of 300 to 1100, and (b2) at least one isocyanate oligomer containing not less than two isocyanate groups, the weight ratio of the isocyanate prepolymer (b1) to the isocyanate oligomer (b2) being from 1:4 to 4:1; (c) a catalyst; and (d) optionally an additive; wherein the coating composition has a molar ratio of isocyanate groups to isocyanate-reactive groups of 1.5:1 to 8:1. The coating composition provided by the present invention has a long pot life, and the resulting coating has the advantages of fast drying and high hardness.

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Patent Owner(s)

Patent OwnerAddress
COVESTRO DEUTSCHLAND AG51373 LEVERKUSEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Greszta-Franz, Dorota Solingen, DE 41 177
Li, Hongchao Shanghai, CN 134 424
Li, Jinqi Shanghai, CN 24 3
Liu, Hao Shanghai, CN 555 2317
Shen, Jianping Shanghai, CN 17 41
Xu, Yifeng Shanghai, CN 11 2
Yang, Ling Shanghai, CN 192 1346
Zheng, Junchao Shanghai, CN 9 4

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