Patent ID: 8642171
Filing Date: 2014-02-04
Classification: B05D,Y10T

Abstract:
1. A substrate coated with a multi-layer non-stick coating which resists abrasion force, said coating comprising: (a) a pre-primer base coat layer, substantially free of fluoropolymer, having a dry film thickness of at least 10 micrometers comprising a heat resistant non-fluoropolymer polymer binder composition and inorganic filler particles, wherein the weight ratio of inorganic filler particles to polymer binder solids is greater than 1.0, and wherein at least 10 weight % of said inorganic filler particles are large ceramic particles having an average particle size of at least 14 micrometers, and greater than 50% of the inorganic filler particles are titanium dioxide having an average particle size of from 0.1 to 2.0 micrometers; (b) at least two further coating layers, wherein the further coating layers are free of inorganic filler particles having an aspect ratio of greater than 3.0, and wherein at least two of said further coating layers comprise one or more fluoropolymer; and