Urethane-based stain-release coatings
First Claim
1. A chemical composition comprising:
- one or more urethane oligomers of at least two repeating units selected from the group consisting of fluorine-containing urethane oligomers and long-chain hydrocarbon-containing urethane oligomers, wherein said oligomers comprise the reaction product of;
(a) one or more polyfunctional isocyanate compounds;
(b) one or more polyols;
(c) one or more monoalcohols selected from the group consisting of fluorocarbon monoalcohols, optionally substituted long-chain hydrocarbon monoalcohols, and mixtures thereof;
(d) one or more silanes of the following formula (I);
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Abstract
This invention relates to chemical compositions comprising one or more urethane oligomers of at least two repeating units selected from the group consisting of fluorine-containing urethane oligomers and long-chain hydrocarbon-containing urethane oligomers. These urethane oligomers comprise the reaction product of (a) one or, more polyfunctional isocyanate compounds; (b) one or more polyols; (c) one or more monoalcohols selected from the group consisting of fluorochemical monoalcohols, optionally substituted long-chain hydrocarbon monoalcohols, and mixtures thereof; (d) one or more silanes; and optionally (e) one or more water-solubilizing compounds comprising one or more water-solubilizing groups and at least one isocyanate-reactive hydrogen containing group. The chemical compositions of the present invention can be applied as coatings and these coatings can impart stain-release characteristics and resist being worn-off due to wear and abrasion.
115 Citations
38 Claims
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1. A chemical composition comprising:
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one or more urethane oligomers of at least two repeating units selected from the group consisting of fluorine-containing urethane oligomers and long-chain hydrocarbon-containing urethane oligomers, wherein said oligomers comprise the reaction product of;
(a) one or more polyfunctional isocyanate compounds;
(b) one or more polyols;
(c) one or more monoalcohols selected from the group consisting of fluorocarbon monoalcohols, optionally substituted long-chain hydrocarbon monoalcohols, and mixtures thereof;
(d) one or more silanes of the following formula (I);
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An article comprising:
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(a) a substrate having one or more surfaces; and
(b) a cured coating derived from at least one solvent and a chemical composition comprising;
one or more urethane oligomers of at least two repeating units selected from the group consisting of fluorine-containing urethane oligomers and long-chain hydrocarbon-containing urethane oligomers, wherein said oligomers comprise the reaction product of;
(a) one or more polyfunctional isocyanate compounds;
(b) one or more polyols;
(c) one or more monoalcohols selected from the group consisting of fluorocarbon monoalcohols, optionally substituted long-chain hydrocarbon monoalcohols, and mixtures thereof; and
(d) one or more silanes of the following formula (I);
- View Dependent Claims (22, 23, 24, 25, 26, 27)
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- 28. A fluorochemical composition comprising an oligomer comprising at least two repeating units and two or more terminal groups, each repeating unit comprising a urethane group, and said oligomer being terminated with (i) one or more perfluoroalkyl groups or one or more perfluoroheteroalkyl groups, and (ii) one or more silyl groups.
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35. A method for imparting stain-release characteristics to a substrate, having one or more surfaces, comprising the steps of:
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(a) applying a coating composition onto the one of more surfaces of the substrate, wherein the coating composition comprises;
(i) at least one solvent; and
(ii) one or more urethane oligomers of at least two repeating units selected from the group consisting of fluorine-containing urethane oligomers and long-chain hydrocarbon-containing urethane oligomers, wherein said oligomers comprise the reaction product of;
(aa) one or more polyfunctional isocyanate compounds;
(bb) one or more polyols;
(cc) one or more monoalcohols selected from the group consisting of fluorocarbon monoalcohols, optionally substituted long-chain hydrocarbon monoalcohols, and mixtures thereof; and
(dd) one or more silanes of the following formula (I);
- View Dependent Claims (36, 37, 38)
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Specification