Patent ID: 7368174

Claim:
An aqueous dispersion composition, comprising: a polymer blend comprising a) an aqueous dispersion of at least one polysiloxane and b) an aqueous dispersion of at least one polyurethane, wherein the amount of said at least one polysiloxane polymer ranges from about 50% to about 85% by weight and the amount of said at least one polyurethane ranges from about 15% to about 50% by weight based upon the total solids weight of said at least one polysiloxane polymer and said at least one polyurethane polymer, said polyurethane derived from at least one aliphatic or cycloaliphatic diisocyanate; said polyurethane being heat curable; and c) a polyolefin in an amount of from about 5 parts by weight to about 35 parts by weight per 100 total parts by weight of said one or more polysiloxanes and said one or more polyurethanes; said aqueous dispersion containing about 7% by weight or less of an organic solvent based upon the total weight of said dispersion composition; said polymer blend containing less than about 10 parts by weight of a tackifier based upon 100 total parts by weight of said at least one polyurethane and said at least one polysiloxane; and said polymer blend containing less than about 10 parts by weight of a halogen containing polymer based upon 100 total parts by weight of said at least one polyurethane and said at least one polysiloxane.