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US 10,094,027 B2Granted
Self-cleaning substrates and methods for making the same
AssigneeArconic Inc.
InventorsJay A. Kahn, Grant Nintzel, Yves Biehlmann, Craig Belnap, Clinton Zediak, John Keener, James Bell, Albert L. Askin, Paula L. Kolek, Jean Ann Skiles
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Abstract
A methods, apparatus and compositions for producing colored, self-cleaning substrates by roll coating are provided. The roll coated, colored, self-cleaning substrates retain the predetermined color and a predetermined gloss of the colored coating, thereby facilitating their use in architectural applications. The roll coated, colored, self-cleaning substrates may be iridescent-free.
Claims17
A method comprising:
- (a) first roll coating an inorganic barrier coating liquid onto at least a portion of an initial colored sheet product, wherein the inorganic barrier coating liquid is in the form of an aqueous solution;
- (i) wherein the initial colored sheet product comprise an organic layer disposed on a base material;
- (ii) wherein the initial colored sheet product comprises a predetermined color and a predetermined gloss;
- (b) first converting the inorganic barrier coating liquid into an inorganic barrier layer, thereby producing an intermediate product, wherein, after the first converting step, the inorganic barrier layer is located on at least a portion of the organic layer, and wherein, after the first converting step, the intermediate product retains the predetermined color and retains the predetermined gloss of the initial colored sheet product;
- (c) second roll coating a self-cleaning coating liquid onto at least a portion of the inorganic barrier layer, wherein the self-cleaning coating liquid is an aqueous-based liquid consisting essentially of water, titanium dioxide particles, silica and optional surfactant, and wherein the second roll coating step comprises uniformly applying the self-cleaning coating liquid to the inorganic barrier layer;
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- (d) second converting the self-cleaning coating liquid into a self-cleaning layer, thereby producing a final sheet product, wherein, after the second converting step, the self-cleaning layer is located on at least a portion of the inorganic barrier layer, and wherein, after the second converting step, the final sheet product retains the predetermined color and retains the predetermined gloss of the initial colored sheet product, and wherein the final sheet product is iridescent free.
4 more elements
Dependencies are inferred from the claim text.