Hydrophilic self-cleaning coating compositions
First Claim
Patent Images
1. A coating composition, comprising:
- at least one polymeric binder;
an activated perlite or an activated expanded perlite dispersed in the at least one polymeric binder; and
a hydrophilic activating agent on the activated perlite or activated expanded perlite.
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Abstract
Hydrophilic, self-cleaning coating compositions and methods to make and use the compositions are disclosed. The coatings comprise perlite and/or expanded perlite that are activated with hydrophilic agents. The perlites when incorporated in paints provide hydrophilic, self-cleaning and/or biocidal property to the coating.
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Citations
30 Claims
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1. A coating composition, comprising:
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at least one polymeric binder; an activated perlite or an activated expanded perlite dispersed in the at least one polymeric binder; and a hydrophilic activating agent on the activated perlite or activated expanded perlite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 23, 24)
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9. A method of coating a substrate, the method comprising:
applying a coating composition to the substrate, wherein the coating composition includes; at least one polymeric binder; an activated perlite or an activated expanded perlite dispersed in the at least one polymeric binder; and a hydrophilic activating agent on the activated perlite or activated expanded perlite. - View Dependent Claims (10, 11, 12, 13, 14, 25, 26, 27, 28)
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15. A coated article, comprising:
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a substrate; and a coating composition on the substrate, wherein the coating composition includes; at least one polymeric binder; an activated perlite or an activated expanded perlite dispersed in the at least one polymeric binder; and a hydrophilic activating agent on the activated perlite or activated expanded perlite. - View Dependent Claims (29, 30)
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16. A method of making a coating composition, the method comprising:
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contacting a perlite or an expanded perlite with a hydrophilic activating agent to form an activated perlite or an activated expanded perlite; and adding the activated perlite or the activated expanded perlite to a composition, wherein the composition includes at least one polymeric binder and a liquid medium. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification