Process for preparing low-density flexible polyurethane foams, a

Details Process for preparing low-density flexible polyurethane foams, a Process for preparing low-density flexible polyurethane foams, a

1993-07-21

1994-08-23

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521172, 521174, C08G 1828, C08J 908

Patent

active

053408454

ABSTRACT:
A process for preparing low-density flexible polyurethane foams obtained, in the absence of expanding agents of chlorofluoroalkane type, by the polycondensation of an organic polyisocyanate with at least one polyol of equivalent weight exceeding 50 and functionality equal to or greater than 2, in the presence of an expanding system comprising water and dimethyl carbonate (DMC).

REFERENCES:
patent: 5140052 (1992-08-01), Franklin

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