Catalysts which stabilize hydrohalocarbon blowing agent in polyi

Details Catalysts which stabilize hydrohalocarbon blowing agent in polyi Catalysts which stabilize hydrohalocarbon blowing agent in polyi

1994-11-23

1996-10-01

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

2521822, 25218224, 25218227, 25218228, 521115, 521116, 521128, 521129, 521130, 521131, 521170, 521902, C08J 914, C08K 502, C08K 510, C08K 519

Patent

active

055611710

ABSTRACT:
The present invention relates to foam compositions which are expanded with hydrohalocarbon blowing agents in the presence of catalysts which are capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during the polymerization. Thus, the present invention provides compositions comprising polyisocyanate, polyol, hydrohalocarbon blowing agent, surfactant, and catalyst for polymerization of the polyisocyanate and polyol wherein the catalyst is capable of decreasing the amount of decomposition of the hydrohalocarbon blowing agents to haloalkenes during polymerization of the polyisocyanate and the polyol.

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