Process for making flexible polyurethane foam

Details Process for making flexible polyurethane foam Process for making flexible polyurethane foam

1990-11-13

1991-12-03

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521904, C08J 912

Patent

active

050701126

ABSTRACT:
A process for making flexible polyurethane foam, employing a silicone surfactant composition containing 5-20 wt % of a defined low molecular weight silicone surfactant and 95-80 wt % of a defined high molecular weight silicone surfactant. Use of the claimed mixture of surfactants provides product foams having improved breathability relative to foams produced using high molecular weight silicone surfactant alone.

REFERENCES:
patent: 2834748 (1958-05-01), Bailey
patent: 4119582 (1978-10-01), Matsubara

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