C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
400/3068, 400/55
C09D 175/04 (2006.01) C08G 18/62 (2006.01)
Patent
CA 1062834
Abstract of the Disclosure A thermosetting coating composition, of controlled rheology, or a urethane polymer that cures into a durable, flexible coating is the subject of this invention; the film- forming constituents of the coating composition are (1) and organic polyisocyanate, and (2) a polymer that has a backbone of polymerized ethy- lenically unsaturated monomers and has attached directly to its backbone ester groups of the follow- ing structure - ? - O - R1 - OH and Image or an isomer thereof, wherein R1, R2 and R3 are hydro- carbon radicals; and the rheology control agents are fumed silica, attapulgus clay, copolymers of acrylo- nitrile/methyl acrylate of high nitrile content, modified microgels and the like. This novel coating composition is particularly useful, especially when applied over zinc rich primers, as a high quality industrial finish and can be used to paint autos, trucks, aircraft, railway equipment and the like. - 1 -
253435
E.i. Du Pont de Nemours And Company
Na
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