Polyurethane foam prepared using high functionality cell openers

Details Polyurethane foam prepared using high functionality cell openers Polyurethane foam prepared using high functionality cell openers

1988-11-14

1990-05-29

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 521173, 521174, 521175, 521914, 25218224, C08G 1814

Patent

active

049296469

ABSTRACT:
Flexible polyurethane foams are prepared using certain high molecular weight, high functionality poly(oxyethylene) compounds as cell openers and softeners. These high functionality polyether polyols have been found to be very effective in opening the cells of the foam, even when used in making foams based on PIPA polyols, which are notoriously closed-celled. They are also quite effective in softening foams made using MDI-based polyisocyanates.

REFERENCES:
patent: 4607064 (1986-08-01), Kuhn et al.

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