Coating composition

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United States of America

PATENT NO 12187913
APP PUB NO 20210355347A1
SERIAL NO

17286518

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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; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer, the isocyanate prepolymer being a reaction product of components comprising at least one aliphatic isocyanate and at least one polyether polyol, the polyether polyol having a weight-average molecular weight of 400 to 6000 and the structure of HO—R1n—R2; 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 greater than 1:4 and less than 4:1; and (c) a catalyst; wherein the molar ratio of the isocyanate groups to the isocyanate-reactive groups in the coating composition is from 1.5:1 to 4:1.

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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
Li, Jinqi Shanghai, CN 24 3
Liu, Hao Shanghai, CN 555 2317
Shen, Jianping Shanghai, CN 17 41
Yang, Ling Shanghai, CN 192 1346
Zheng, Junchao Shanghai, CN 9 4

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