Coating For A Surface
AssigneeW. L. Gore & Associates, Inc.
InventorsPaul D. Drumheller, Charles D. Claude
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Abstract
Coatings for a surface, especially a priming coating, of the present invention have been found to be durable, resistant to oxidative degradation, erosion and depolymerisation, stable to sterilization and low particulating, and are easily applied to the required surface of a substrate in a surface-independent manner. Such coatings, when used as priming coatings to be coated with a subsequent coating, in at least some embodiments, form exterior coatings which are also highly durable and are stable to sterilisation and aging.
Claims72
A surface having a coating comprising a mixture of components A and B, wherein
- component A is a polymer formed by self-polymerisation of a molecule comprising catechol functionality and amine and/or amide and/or hydroxyl functionality;
- and
- component B is
- (i) a cross-linking molecule comprising two or more photosensitive or thermosensitive moieties, at least some of which moieties form covalent bonds with component A;
- or
- (ii) a polymer comprising photosensitive or thermosensitive moieties at least some of which moieties form covalent bonds with component A and which polymer forms an interpenetrating network with component A;
- or a mixture thereof.
A surface having a coating comprising a cross-linked copolymer of components A and B, wherein
- component A is a molecule capable of self-polymerisation comprising catechol functionality and amine and/or amide and/or hydroxyl functionality;
- and
- component B is a molecule comprising one or more groups capable of participating in the polymerisation of component A, wherein said molecule comprises one or more photosensitive or thermosensitive moieties capable of forming covalent bonds with component A, at least some of which moieties form covalent bonds with component A in the copolymer.
A method of coating a surface, comprising the steps of:
- (a) contacting the surface with a mixture comprising components A and B, wherein
- component A is a molecule capable of self-polymerisation comprising catechol functionality and amine and/or amide and/or hydroxyl functionality;
- and
- component B is
- a cross-linking molecule comprising two or more photosensitive or thermosensitive moieties capable of forming covalent bonds with component A;
- or
- (ii) a polymer comprising photosensitive or thermosensitive moieties capable of forming covalent bonds with component A,
- or a mixture thereof;
- such that component A self-polymerises in the presence of component B and in the case of (ii) forms an interpenetrating network with component B;
- and
- (b) activating the photosensitive or thermosensitive moieties of component B such that at least some of said moieties form covalent bonds with component A.
A method of coating a surface, comprising the steps of:
- (a) contacting the surface with a mixture comprising components A and B, wherein
- component A is a molecule capable of self-polymerisation comprising catechol functionality and amine and/or amide and/or hydroxyl functionality;
- and
- component B is a molecule comprising one or more groups capable of participating in the polymerisation of component A, wherein said molecule comprises one or more photosensitive or thermosensitive moieties capable of forming covalent bonds with component A such that a copolymer of components A and B is formed;
- and
- (b) activating the photosensitive or thermosensitive moieties of component B in the copolymer such that at least some of said moieties form covalent bonds with component A.
Dependencies are inferred from the claim text.