Processability of hydrocarbon blown, polyisocyanate based foams

Details Processability of hydrocarbon blown, polyisocyanate based foams Processability of hydrocarbon blown, polyisocyanate based foams

1995-09-05

1996-06-04

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521116, 521117, 521128, 521130, 521157, 521163, 521167, 521170, 521172, 521173, C08G 1832, C08G 1834

Patent

active

055233325

ABSTRACT:
There is now provided a polyisocyanate-based foam made by reacting an organic polyisocyanate with a polyol solution containing a C.sub.4 -C.sub.7 aliphatic and/or cycloaliphatic hydrocarbon as a blowing agent. The hydrocarbon blowing agent is soluble in the polyol solution having polyols with polyester linkages by using a reacted or unreacted compatibilizing agent represented by the formula: ##STR1## wherein R.sup.1 is preferentially OH, and R.sup.2 is a C.sub.6 -C.sub.24 aliphatic, branched or unbranched, hydrocarbon group.

REFERENCES:
patent: 4608432 (1986-08-01), Magnus et al.
patent: 4644047 (1987-02-01), Wood
patent: 4644048 (1987-02-01), Magnus et al.
patent: 4687594 (1987-08-01), Lietz et al.
patent: 4722803 (1988-02-01), Magnus et al.
Polyurethanes World Congress, Oct. 10-13, 1993, pp. 33-39.

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