Radiation curable abrasion resistant coatings from colloidal silica and acrylate monomer
First Claim
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1. A silane free radiation curable coating composition consisting essentially of:
- (A) at least one multifunctional acrylate monomer;
(B) an acrylic monomer selected from the group consisting of ##STR6## and mixtures thereof;
wherein;
R1 is hydrogen or a monovalent hydrocarbon radical;
R2 and R4 are selected from an alkyl or alkenyl group having 1 to 10 carbons, an aryl, alkaryl, and aralkyl group containing 6 to 10 carbons;
R3 is selected from the group consisting of hydrogen, a monovalent hydrocarbon radical having from 1 to 6 carbon atoms, and a monovalent hydrocarbon radical having from 1 to 6 carbon atoms and containing at least one hydroxy group;
(C) aqueous dispersion of colloidal silica.
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Abstract
The present invention relates to coating compositions containing multifunctional acrylate monomers, acrylic monomers and colloidal silica. Silanes are absent from these coating compositions. Transparent, abrasion resistant coatings result from the cure, either by ultraviolet light or electron beam radiation, of these compositions.
111 Citations
21 Claims
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1. A silane free radiation curable coating composition consisting essentially of:
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(A) at least one multifunctional acrylate monomer; (B) an acrylic monomer selected from the group consisting of ##STR6## and mixtures thereof;
wherein;
R1 is hydrogen or a monovalent hydrocarbon radical;R2 and R4 are selected from an alkyl or alkenyl group having 1 to 10 carbons, an aryl, alkaryl, and aralkyl group containing 6 to 10 carbons; R3 is selected from the group consisting of hydrogen, a monovalent hydrocarbon radical having from 1 to 6 carbon atoms, and a monovalent hydrocarbon radical having from 1 to 6 carbon atoms and containing at least one hydroxy group; (C) aqueous dispersion of colloidal silica. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification