Patent ID: 8901187

Claim:
A high resilience flexible polyurethane foam having a bulk foam density of 2.5 pounds per cubic foot or lower and having a foam hardness or 25% Indentation Force Deflection (IFD) in a range of 10 to 40 lb/50 in 2 , wherein the foam results from a reaction of a polyalkyleneoxide polyether glycol polyol having a molecular weight in a range of from about 4,500 to 6,000 g/mol and water with methylene diphenyl diisocyanate (MDI) in the presence of at least a 1,2-dimethylimidazole amine catalyst, a silicone surfactant, and an auxiliary blowing agent and without a tin catalyst and without toluene diisocyanate (TDI), and wherein the foam made without the use of a flame retardant additive passes the requirements of State of California Technical Bulletin 117.