Patent ID: 9080037
Filing Date: 2015-07-14
Classification: C08K,C08L

Abstract:
1. A foamed composition comprising: (a) a polyurethane polymer in an amount of about 10 to about 60% by weight of the composition; and (b) ammonium sulfate in an amount above 30 up to about 80% by weight of the composition having an average particle size of less than about 62 μm; wherein the ammonium sulfate is in a micronized form when introduced into the polyurethane polymer, the foamed composition has a reduced propensity to ignite or smoke in the presence of heat or flame as compared to the polyurethane polymer alone, the foamed composition is fire retardant and has a petroleum-derived polymeric component content that is at least about 30% lower than the petroleum-derived polymeric component content of polyethylene, and the foamed composition meets the U.S. Government standard for flammability resistance FAR 25.853(b) and/or passes the ASTM E-84 test with a Class A rating.