Patent ID: 8889779
Filing Date: 2014-11-18
Classification: C08K,C08L,C09D,F16L,Y10T

Abstract:
1. Coating composition resisting sloughing from a non-horizontal metal substrate prior to baking, comprising (a) an aqueous medium, (b) melt-fabricable PFA perfluoropolymer dispersed in said aqueous medium and having a melting temperature of at least 290° C., and a sloughing-resistant amount of the combination of (c) melt-fabricable FEP perfluoropolymer dispersed in said aqueous medium and having a melting temperature of no greater than 270° C., and (d) water miscible organic liquid having a boiling temperature of at least 280° C., wherein said sloughing-resistant amount is either from 1 to 8 wt % of (c) and from 0.5 to 3 wt % of (d), or is no more than 3 wt % of (c) and no more than 2 wt % of (d), all based on the sum of (a), (b), (c) and (d).