Waterborne polyester paint

Details Waterborne polyester paint Waterborne polyester paint

C - Chemistry, Metallurgy

09

D

C09D 167/06 (2006.01) B05D 7/00 (2006.01) C09D 167/00 (2006.01) C09D 167/04 (2006.01) C09D 167/08 (2006.01) C25D 13/06 (2006.01)

Patent

CA 2144688

A waterborne paint is provided by dissolving or dispersing a polyester resin and a crosslinker in an aqueous medium containing a base. The polyester resin contains a hydroxy-terminated polyalkadienediol having an average degree of polymerization from 5 to 50, a hydrogenated product thereof or a mixture thereof in a proportion from 1 to 30 % by weight of the entire polyester- forming reactants, and has an acid number from 5 to 150, a hydroxyl number from 30 to 250. The paint is useful for forming a multilayer coating film on automobile bodies by applying the paint between an electrodeposition coating layer and a top coating layer.

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