Coating composition

Details Coating composition Coating composition

C - Chemistry, Metallurgy

08

G

C08G 18/08 (2006.01) C08G 18/38 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2669578

Coating composition comprising one or more polythiols, one or more polyisocyanates, and a base compound, e.g., an amine catalyst, and a carboxylic acid compound, e.g., cyanoacetic acid and/or a halogenated acetic acid, such as dichloroacetic acid or thfluoroacetic acid. The molar ratio of the acid compound to the basic compound is preferably at least 2:1, e.g. at least 10:1.

L'invention concerne une composition de revêtement comprenant un ou plusieurs polythiol(s), un ou plusieurs polyisocyanate(s), un composé de base, par exemple un catalyseur d'amine, et un composé d'acide carboxylique, par exemple un acide cyanoacétique et/ou un acide acétique halogéné, tel qu'un acide dichloroacétique ou un acide trifluoroacétique. Le rapport molaire du composé acide par rapport au composé de base est de préférence d'au moins 2 : 1, par exemple au moins 10 : 1.

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