Powder coating composition

C - Chemistry – Metallurgy – 08 – F

Patent

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402/297, 402/368

C08F 8/46 (2006.01) C08F 226/06 (2006.01) C09D 139/04 (2006.01) C09D 157/04 (2006.01)

Patent

CA 1065539

A B S T R A C T Thermosetting powder coating compositions are prepared by reacting a solid pulverulent mixture of a linear vinyl addition polymer having pendant 2-oxasoline and/or 2-oxazine groups and a solid polycarboxylic acid having a melting point of 70°-175°C. There is preferably added, as a plasticizer, a long chain monocarboxylic acid. The coatings thus prepared have excellent re- sistance to impact and to weathering.

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