Absorbent, non-skinned foam and the method of preparation

Details Absorbent, non-skinned foam and the method of preparation Absorbent, non-skinned foam and the method of preparation

1991-05-01

1992-05-05

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

427209, 427373, 428160, 4283044, 4283099, 4283166, 4283184, 4283186, 4283193, 4284231, C08G 1814

Patent

active

051108437

ABSTRACT:
A polyurethane foam comprising a convolution of connected passages and a three dimensional vesicular, porous surface structure, substantially without an outer layer skin is described. An absorbent article is further described comprising a substrate and at least a single layer of the polyurethane foam. The process to produce the polyurethane foam comprises the steps of:

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Polyurethane Handbook, Chap. 7, (sec 7.1) G. Oertel, 1985.
Hypol Plus.TM. Foamable Hydrophilic Prepolmers, Grace, Organic Chemicals Division, W. R. Grace & Co., Lexington, Mass. 02173, 1985.

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