High resiliency polyurethane foams with improved static...

Details High resiliency polyurethane foams with improved static... High resiliency polyurethane foams with improved static...

C - Chemistry, Metallurgy

08

K

C08K 5/51 (2006.01) C08G 18/40 (2006.01)

Patent

CA 2073584

HIGH RESILIENCY POLYURETHANE FOAMS WITH IMPROVED STATIC FATIGUE PROPERTIES Abstract of the Disclosure A novel high resiliency (HR) polyurethane resin foam composi- tion is provided which contains phosphorus compounds to improve the static fatigue properties thereof. An unusual benefit of using certain phosphorus compounds in HR foams is that improved compression set characteristics are obtained. As might be expected, flammability properties are also improved. Some preferred phosphorus additives include, but are not limited to phosphates, phosphonates, phosphites and phosphine oxides such as tri(.beta.-chloroethyl)phosphate; tri(.beta.-chloropro-pyl)phosphate; dichloroethyl methylphosphate; tetrakis(2-chloroethyl) ethylene diphosphate; dimethyl methylphosphonate; diphenyl methyl- phosphate; triethylphosphate; tricrysylphosphate (TCP); triphenylphos- phite; triethylphosphite; triethylphosphine oxide; triphenylphosphine oxide; and mixtures thereof.

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