US 5,919,689 A · Marine antifouling methods and compositions

Abstract

Disclosed are marine antifouling compositions and/or paints containing, microorganism(s), or mixtures of hydrolytic enzyme(s) and microorganism(s), wherein the microorganism or hydrolytic enzyme reduce fouling of a surface coated by the marine antifouling composition and/or paint. Such compositions and/or paints may contain a catalytically effective amount of an inorganic salt. Also disclosed are articles coated with the composition and/or paint. Finally, methods are disclosed for reducing fouling of a marine surface, for reducing marine corrosion, for limiting absorption of water by a marine surface, for reducing the coefficient of drag of a marine surface, removing marine growth from a marine surface, and for reducing mildew fungus on a marine surface.

Claims29

Dependent claims

A marine antifouling composition comprising:

a base material selected from the group consisting of an epoxy material, a polyurethane material, a polyester material, a fiberglass material, a silicone material, and an acrylic material;
and
at least one amylolytic or proteolytic enzyme and at least one microorganism which produces at least one amyloytic or proteolytic enzyme mixed with the base material, wherein the enzyme and the microorganism are present in an effective amount to reduce or prevent fouling of a marine surface coated with the marine antifouling composition.

Dependencies are inferred from the claim text.

Marine antifouling methods and compositions

Life of this patent

Marine antifouling methods and compositions

Life of this patent

Abstract

Claims29