Powder coating composition

Details Powder coating composition Powder coating composition

C - Chemistry, Metallurgy

08

G

402/133, 117/195

C08G 18/80 (2006.01) B05D 1/00 (2006.01) B05D 3/02 (2006.01) C08G 18/75 (2006.01) C08G 18/76 (2006.01)

Patent

CA 1197941

Abstract of the disclosure A powder coating composition is disclosed which comprises (i) a blocked polyisocyanate obtained by blocking the free isocyanate groups of a triisocyanate of the formula: Image wherein Image or an isocyanate-terminated adduct thereof, with a blocking agent and (ii) a polyol resin having a melting point not lower than 40°C. The compositions are highly stable on long-term storage and some can be baked at relatively low temp- eratures. The compositions give coating films completely free of yellowing and blowing and having extremely good mechanical properties, chemical resistance and weather-ability.

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