Abstract: Disclosed are compositions and/or paints containing hydrolytic enzyme(s), microorganism(s), or mixtures of the hydrolytic enzyme(s) and microorganism(s), wherein the microorganism or hydrolytic enzyme remove undesired growth from a surface. 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.

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.

Abstract: Water-soluble polymers that thicken reversibly in aqueous solution on alteration of the degree of alkalinity are manufactured by treating an aqueous suspension of protein with the enzymes elaborated extracellularly by a species of the genus Pseudomonas. The water soluble polymers resulting therefrom are biodegradable. They are useful for stabilizing emulsions, as flow-control agents in water base paint, and as anti-redeposition agents in laundry detergents. They are particularly useful as coagulants for colloidal suspensions of solids such as the phosphate slimes byproduct of the large scale hydraulic mining of phosphate deposits. They are also particularly useful as flow control agents in the water flooding process for the recovery of petroleum.

Abstract: Water-soluble polymers that thicken reversibly in aqueous solution on alteration of the degree of alkalinity are manufactured by treating an aqueous suspension of protein with the enzymes elaborated extracellularly by a species of the genus Pseudomonas. The water soluble polymers resulting therefrom are biodegradable. They are useful for stabilizing emulsions, as flow-control agents in water base paint, and as anti- redeposition agents in laundry detergents. They are particularly useful as coagulants for colloidal suspensions of solids such as the phosphate slimes byproduct of the large scale hydraulic mining of phosphate deposits. They are also particularly useful as flow control agents in the water flooding process for the recovery of petroleum.