Process for the preparation of flexible polyurethane foams with

Details Process for the preparation of flexible polyurethane foams with Process for the preparation of flexible polyurethane foams with

1981-12-24

1982-12-07

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521173, C08G 1814

Patent

active

043628257

ABSTRACT:
The invention concerns a process for the preparation of flexible polyurethane foams by reacting organic polyisocyanates, liquid polyester polyols having hydroxyl numbers of 40 to 80 and molecular weights of 1500 to 5000, which are produced by the polycondensation of organic dicarboxylic acids with either polyol mixture A, based on the overall polyol weight consisting of:

REFERENCES:
patent: 3055867 (1962-09-01), Le Bros et al.
patent: 4237240 (1980-12-01), Jarre et al.

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