Antifouling coating composition
AssigneeMicrophase Coatings, Inc.
InventorWilliam H. Simendinger, III
Life of this patent
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Abstract
The antifouling composition of the present invention includes a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane to provide an interpenetrating polymer network of glass and silicone and at least two materials capable of microphase separation, at least one of which is graftable to the glassy matrix. A primer composition is also provided and is a mixture of an epoxy, an alkoxy-functionalized siloxane and a silane capable of compatabilizing the epoxy and the alkoxy-functionalized siloxane; a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane.
Claims82
An antifouling composition, comprising:
- a) a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane to provide an interpenetrating polymer network of glass and silicone;
- and
- b) at least two materials capable of microphase separation, at least one of which is graftable to the glass matrix.
An antifouling composition, comprising:
- (a) 20 to 90 percent by weight of a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane to provide an interpenetrating polymer network of glass and silicone;
- (b) 1 to 30 percent by weight of at least two materials capable of microphase separation, at least one of which is graftable to the glass matrix;
- and
- (c) 0.1 to 25 percent by weight of an agent capable of preventing slime.
A primer composition formed by crosslinking a mixture of an epoxy, an alkoxy-functionalized siloxane and a silane capable of compatabilizing the epoxy and the alkoxy-functionalized siloxane to provide an interpenetrating polymer network of glass and epoxy.
A primer composition, comprising:
- 10 to 35 percent by weight of an epoxy;
- 10 to 25 percent by weight of an alkoxy-functionalized siloxane;
- and
- 6 to 15 percent by weight of a silane capable of compatabilizing the epoxy and the alkoxy-functionalized siloxane.
A substrate first coated with a primer composition formed by crosslinking a mixture of an epoxy, and alkoxy-functionalized siloxane and a silane capable of compatabilizing the epoxy and the alkoxy-functionalized siloxane;
- and then coated with an antifouling composition comprising a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane;
- and at least two materials capable of microphase separation, at least one of which is graftable to the glass matrix.
A method of treating a substrate to prevent fouling due to immersion in or contact with seawater, the method comprising the steps of
- (a) applying to the substrate a primer composition comprising a mixture of an epoxy, an alkoxy-functionalized siloxane and a silane capable of compatabilizing the epoxy and the alkoxy-functionalized siloxane;
- (b) crosslinking the primer composition;
- (c) then applying to the substrate an antifouling composition comprising a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane;
- and at least two materials capable of microphase separation, at least one of which is graftable to the glassy matrix;
- and
- (d) crosslinking the glassy matrix.
A kit for treating a substrate to provide antifouling properties to the substrate, the kit a primer composition comprising a mixture of an epoxy, an alkoxy-functionalized siloxane and a silane capable of compatabilizing the epoxy and the alkoxy-functionalized siloxane;
- an antifouling composition comprising a glassy matrix formed by crosslinking a mixture of a silanol-terminated silicone and an alkoxy-functionalized siloxane and at least two materials capable of microphase separation, at least one of which is graftable to the glassy matrix;
- and a crosslinking agent.
Dependencies are inferred from the claim text.