US 4,902,767 A · High slip urethane-siloxane coatings

Abstract

A reaction produce which includes a reactive silicone, a polyol, and an isocyanate. The reactive silicone may contain polyol or polyamine functionality. A urethane-siloxane copolymer of polydialkyl siloxane and polyurethane. A coating composition which contains a prepolymer of polydialkyl siloxane and polyurethane. A coated article may be produced wherein the article is coated with a composition that includes polydialkyl siloxane-polyurethane copolymer. A method for making a coating composition includes copolymerizing at least one reactive silicone, at least one polyol, and at least one isocyanate. A single-component coating which includes a polydialykl siloxane-polyurethane copolymer. A prepolymer in solution, wherein the prepolymer includes polydialkyl siloxane-polyurethane copolymer and a solvent, such as xylene.

Claims6

Dependent claims

A high surface slip, water repellant, abrasion resistant coating composition comprising a reaction product of

(A) a polydialkyl-substituted polysiloxane having at least two reactive functionalities that are reactive with an isocyanate and selected from the group consisting of carbinol, amino, thiol and epoxy functionalities,
(B) a polyisocyanate;
and
(C) an isocyanate reactive polyol having a molecular weight from about 200 to 10,000 and selected from the group consisting of polyether and polyester,
wherein said coating composition imparts a slip angle of from 5.degree. to 16.degree. to an elastomer substrate as measured by an inclined plane arrangement, and wherein component (A) is from about 1 to about 10% weight based on total weight of said reaction product;
and (B) and (C) are from 90 to about 99% weight based on total weight of said reaction product.

3 more elements

Dependencies are inferred from the claim text.

High slip urethane-siloxane coatings

Life of this patent

High slip urethane-siloxane coatings

Life of this patent

Abstract

Claims6