Thermosetting resin compositions and precoated metal

C - Chemistry – Metallurgy – 08 – G

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C08G 18/42 (2006.01) B32B 15/08 (2006.01) B32B 27/40 (2006.01) C08G 18/10 (2006.01) C08G 18/75 (2006.01) C08G 18/76 (2006.01) C08G 18/80 (2006.01) C08L 75/06 (2006.01) C09D 175/06 (2006.01)

Patent

CA 1299317

24205-785 Thermosetting Resin Compositions and Precoated Metal Abstract of the Disclosure A one-can thermosetting resin composition comprising (1) a polyester polyol obtained by allowing an aliphatic dicarboxylic acid to react with an aliphatic glycol and polyol having at least three functional groups and (2) a blocked product of .alpha.,.alpha.,.alpha.'.alpha.'-tetramethyl-xylylene diisocyanate or 4,4'-methylene bis (cyclohexyl isocyanate), or a blocked product of an NCO-terminated prepolymer obtained by allowing .alpha.,.alpha.,.alpha.'.alpha.'-tetramethyl- xylylene diisocyanate and/or 4,4'-methylene bis(cyclohexylisocyanate) to react with an active hydrogen compound, gives tough coating films in yellowing and thermal degradation, and also exhibits increased hardness as well as high flexibility, stain resistance and chemical resistance. Especially, when the resin composition is used for preparing precoated metals, it gives good steel plates, thus being advantageously utilized for, among others, light electric appliances.

568045

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