C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/4302, 18/911
C08K 5/16 (2006.01) C08G 18/67 (2006.01) C08G 18/68 (2006.01) C08G 18/80 (2006.01) C08J 7/04 (2006.01) C08L 63/08 (2006.01) C08L 67/06 (2006.01)
Patent
CA 1132288
ABSTRACT OF THE DISCLOSURE A method for producing coated, molded, fiber-reinforced thermoset plastic articles having an adherent coating in heated matched metal molds. The coating composition includes (A) a blocked polyisocyanate which is the reaction product, essentially free of unreacted -NCO radicals, of e-caprolactam and organic polyisocyanate; (B) a polyepoxide-polyacrylate which is the reaction product, essentially free of unreacted epoxy radicals of a polyepoxide and acrylic or methacrylic acid; (C) ethylenically unsaturated polyester resin; (D) copolymerizable alpha-beta ethylenically unsaturated monomer: (E) an initiator for addition polymerization; (F) a catalyst for the reaction of -NCO radicals and -OH radicals; (G) fillers, such as inert particulate fillers, pigments, mold release agents. The coating composition is applied in the matched metal mold after a fiber-reinforced thermoset plastic article has been shaped within the mold. The coating composition is applied by opening the mold and introducing the described coating composition, thereafter closing the mold and retaining the mold in the closed condition until the plastic article is further cured and the described coating composition is cured.
368985
Bereskin & Parr
Freeman Chemical Corporation
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