Polyurethane foams from isocyanate, polyester polyol and chlorod

Details Polyurethane foams from isocyanate, polyester polyol and chlorod Polyurethane foams from isocyanate, polyester polyol and chlorod

1985-05-13

1987-01-13

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521917, C08G 1814

Patent

active

046365290

ABSTRACT:
Process for manufacture of polyurethane and poly(urethane/isocyanate) foams utilizing higher levels of aromatic polyester polyols in the polyol component through the substitution of CHClF.sub.2 for at least a portion of the conventional blowing agents to provide a foamed product of lower combustibility and lower brittleness.

REFERENCES:
patent: 4070310 (1978-01-01), Schneider et al.
patent: 4219624 (1980-08-01), Fuzesi
patent: 4430446 (1984-02-01), Lynn
patent: 4452924 (1984-06-01), Radovich
patent: 4546122 (1985-10-01), Radovich et al.

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