Patent ID: 6653361
Filing Date: 2003-11-25
Classification: C08G,C08K

Abstract:
A flame retardant polyurethane foam formed from a composition comprising:an organic polyisocyanate component; an active hydrogen-containing component substantially reactive with the polyisocyanate to form a polyurethane, wherein the viscosity of the active hydrogen-containing component is less than about 500 cP at room temperature; a surfactant; a catalyst having substantial catalytic activity in the curing of said mixture; and a flame retarding composition comprising: an antimony-based compound; a halogenated, active hydrogen-containing component reactive with the polyisocyanate component; and a halogenated flame retarding agent, wherein the molar ratio of total halogen to antimony is about 2.0:1 to about 24.0:1, and further wherein the total composition comprises at least about 12 weight percent halogen.