Coating composition of a solution fluorocarbon polymer, a dispersed fluorocarbon polymer and a polyamine curing agent

摘要

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 P Pa dispersed fluorocarbon polymer of the following group polytetrafluoroethylene, fluorinated ethylene/propylene polymer, polyvinyl fluoride, polyvinylidene fluoride, copolymer of tetrafluoroethylene/perflouroalkoxyvinyl ether;PPa metallic oxide such as magnesium oxide which is an acid acceptor; and PPan aliphatic or cycloaliphatic polyamine curing agent; preferably, the composition contains a reinforcing pigment such as titanium dioxide.PPThe 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.