Powder paint compositions including carboxyl terminated...

Details Powder paint compositions including carboxyl terminated... Powder paint compositions including carboxyl terminated...

C - Chemistry, Metallurgy

08

L

400/4019

C08L 63/10 (2006.01) C08G 59/42 (2006.01) C08G 65/26 (2006.01) C08G 65/332 (2006.01) C08G 81/00 (2006.01) C09D 133/06 (2006.01) C09D 157/10 (2006.01) C09D 163/00 (2006.01) C09D 171/02 (2006.01) C08L 71/02 (2006.01)

Patent

CA 1043937

ABSTRACT OF THE DISCLOSURE Powder coating compositions are disclosed which, exclusive of pigments and non-reactive components, comprise a coreactive mixture of: (A) a copolymer of between about 8 to about 30 weight percent of a glycidyl ester of a monothylenically unsaturated acid and between about 92 and about 70 weight percent of other monoethylenically unsaturated monomers, said copolymer having a glass transition temperature in the range of 40°C to 90°C and a number average molecular weight (Mn) of between about 2500 and about 8500; and (B) a carboxyl terminated poly- ether crosslinking agent in an amount of between about .8 and about 1.2 carboxyl groups for each epoxy group in the copolymer.

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