Patent ID: 9416292
Filing Date: 2016-08-16
CPC Classification: C08K,C08L,C09D,F16L,Y10T

Claim Text:
1. Metal substrate having a non-stick coating comprising a primer layer and an overcoat layer on said primer layer, said overcoat layer comprising melt-fabricable perfluoropolymer (b) having a melting temperature of at least 290° C. and an effective amount of melt-fabricable perfluoropolymer (c) having a melting temperature of no greater than 270° C. to improve the rapid decompression adhesion between said primer layer and said overcoat layer, wherein melt-fabricable perfluoropolymer (b) is a copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether) and wherein melt-fabricable perfluoropolymer (c) is a copolymer of tetrafluoroethylene and hexafluoropropylene and wherein the amount of said perfluoropolymer of (c) present is 2 to 10 wt % based on the sum of the weights of said perfluoropolymers (b) and (c).