| abstract |
PURPOSE: To provide a cooking appliance article having a hardened coating on a substrate by applying a coating composition including a fine-grain polymer of monoethylenic unsaturated hydrocarbon monomer, and a fine-grain copolymer composed of tetrafluoroethylene, and a perfluorinated vinyl ether or the like, to the substrate. n CONSTITUTION: A coating composition including 90-50wt.% of a fine-grain polymer of monoethylenic unsaturated hydrocarbon monomer which is completely substituted with fluorine atoms, or combination of fluorine atoms and chlorine atoms, and has 20,000 number average molecular weight, and 10-50wt.% of one kind of fine-grain copolymer composed of 99.5-92wt.% of tetrafluoroethylene, and 0.5-8wt.% of a perfluorinated vinyl ether of formula I (R f is a 1-10C perfluoroalkyl group.) or a fine-grain perfluorinated ether of formula II (n is 0-4), to a substrate. The composition is heated to obtain a cooking appliance article having a hardened coating. n COPYRIGHT: (C)1992,JPO |