C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 135/02 (2006.01) C09D 127/12 (2006.01) C09D 133/06 (2006.01) C09D 163/00 (2006.01) C08L 27/12 (2006.01) C08L 33/06 (2006.01) C08L 63/00 (2006.01)
Patent
CA 2162844
An improved coating composition useful for a finish for automobiles and trucks in which the film forming binder contains reactive binder components of about (a) 25-90 % by weight, based on the weight of binder, of an acrylic anhydride polymer having at least two reactive anhydride groups and comprising polymerized monomer units of (i) an ethylenically unsaturated anhydride or an ethylenically unsaturated dicarboxylic acid which has been converted to an anhydride, and (ii) monomer units selected from the group consisting of alkyl methacrylate, alkyl acrylate and mixtures thereof, wherein the alkyl groups contain 1-12 carbon atoms, said polymer having a weight average molecular weight of about 2,000 50,000; (b) 5-30 % by weight of an oxiranyl component having at least two reactive oxiranyl groups; (c) 1-30 % of a fluorinated polymer derived from at least one monomer having a perfluorocarbon group of at least 4 carbon atoms, and at least one functional group that can react with component (a) and/or component (b); (d) an effective amount of a curing catalyst; wherein components (a), (b) and (c) are separate components; and optional component (e) comprising about 5-30 %, by weight based on the weight of binder, of one or more resins selected from the group consisting of acrylic, polyester and polyester urethane resins that may contain hydroxyl and/or acid functionality.
Anderson Albert Gordon
Barsotti Robert John
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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