Coating agents and coated articles
First Claim
1. A method for forming a coated article, the method comprising steps of (a) applying a coating composition to a surface of the article, the coating composition comprising a polymer that includes a polymaleic acid derivative or a copolymer of a polymaleic acid derivative, one or more photoreactive groups that are pendent from the polymer, and one or more anionically charged moieties, wherein one or more of the anionically charged moieties is within the polymaleic acid derivative, and wherein the photoreactive groups are individually selected from acetophenone, benzophenone, anthrone, acridone, xanthone, thioxanthone, and anthraquinone;
- and (b) exposing the coating composition to actinic energy, thereby activating at least some of the photoreactive groups and covalently coupling the coating composition on the surface.
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Accused Products
Abstract
The invention describes novel coating agents that include a polymer, one or more latent reactive groups and one or more noncovalent linking groups, the noncovalent linking groups selected to interact with a substrate to which the coating agent is applied. The coating agents are useful for providing a coating that can be further functionalized (for example, by application of additional coating layers), or for providing desirable properties to a surface.
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Citations
20 Claims
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1. A method for forming a coated article, the method comprising steps of (a) applying a coating composition to a surface of the article, the coating composition comprising a polymer that includes a polymaleic acid derivative or a copolymer of a polymaleic acid derivative, one or more photoreactive groups that are pendent from the polymer, and one or more anionically charged moieties, wherein one or more of the anionically charged moieties is within the polymaleic acid derivative, and wherein the photoreactive groups are individually selected from acetophenone, benzophenone, anthrone, acridone, xanthone, thioxanthone, and anthraquinone;
- and (b) exposing the coating composition to actinic energy, thereby activating at least some of the photoreactive groups and covalently coupling the coating composition on the surface.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An article comprising a medical device and a multilayer coating on a surface of the medical device, the multilayer coating comprising:
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(a) a coating layer comprising (i) a polymaleic acid derivative or a copolymer thereof;
(ii) one or more aryl ketones; and
(iii) one or more anionically charged moieties;and (b) a hydrophobic coating layer. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification