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

C - Chemistry, Metallurgy

08

G

C08G 18/06 (2006.01) B29C 44/34 (2006.01) B29C 44/60 (2006.01) B29C 67/20 (2006.01) C08G 18/08 (2006.01) C08G 18/16 (2006.01) C08J 9/30 (2006.01)

Patent

CA 2108468

2108468 9219445 PCTABS00017 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: (a) coating a substrate (12) with a reaction mixture capable of reacting to form a polyurethane foam; (b) immersing the coating substrate (12A) into a liquid bath (16) comprising water and a catalyst, for a time period sufficient to effect reaction of the reaction mixture; and (c) removing the coated substrate from the liquid bath.

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