초록 ▼

A coating composition of a fluorocarbon polymer which cures at ambient temperatures in which a fluorocarbon polymer in solution is of vinylidene fluoride and hexafluoropropylene and has a weight average molecular weight of about 5,000-600,000; the composition also contains dispersed fluorocarbon pol

A coating composition of a fluorocarbon polymer which cures at ambient temperatures in which a fluorocarbon polymer in solution is of vinylidene fluoride and hexafluoropropylene and has a weight average molecular weight of about 5,000-600,000; the composition also contains dispersed fluorocarbon polymer particles of the following group polytetrafluoroethylene, fluorinated ethylene/propylene polymer, polyvinyl fluoride, polyvinylidene fluoride, copolymer of tetrafluoroethylene/perflouroalkoxyvinyl ether; a metallic oxide such as magnesium oxide which is an acid acceptor; and an aliphatic or cycloaliphatic polyamine curing agent; preferably, the composition contains a reinforcing pigment such as titanium dioxide. The coating composition is used to provide corrosion and abrasion resistant coatings for large structures in chemical plants, oil refineries, oil drilling platforms, and as a coating for the interior of smoke stacks of large utility companies.

대표청구항 ▼

A coating composition comprising about 10-70% by weight binder and 30-90% by weight of a nonaqueous organic liquid; wherein the binder comprises: a fluorocarbon polymer in solution comprising vinylidene fluoride and hexafluoropropylene having a weight average molecular weight of about 5,000-600,000;

A coating composition comprising about 10-70% by weight binder and 30-90% by weight of a nonaqueous organic liquid; wherein the binder comprises: a fluorocarbon polymer in solution comprising vinylidene fluoride and hexafluoropropylene having a weight average molecular weight of about 5,000-600,000; dispersed fluorocsrbon polymer particles having a particle size of about 1-150 microns and being selected from the group consisting of polytetrafluoroethylene, fluorinated ethylene/propylene polymer, polyvinyl fluoride, polyvinylidene fluoride, copolymer of tetrafluoroethylene/perfluoroalkoxyvinylether; a metallic oxide which is an acid acceptor; and a curing agent of the formula [Figure] where R is R1NH2 and R1 is aliphatic or cycloaliphatic hydrocarbon radical.