Hydrophilic polyurethane foams

Details Hydrophilic polyurethane foams Hydrophilic polyurethane foams

1991-07-03

1992-11-17

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521173, 521174, 521905, 528 49, 528 59, 528 76, 528 79, 604358, 604367, 604369, 604372, 604904, C08G 1810, C08G 1848, A61F 1300, A61L 1526

Patent

active

051644215

ABSTRACT:
Hydrophilic polyurethane foams containing residues of a polyalkylene glycol monoalkyl or alkaryl ether may be produced by reacting the ether with an isocyanate having a functionality of greater than two and using only stoichiometric amounts or small excesses e.g. up to 12% of weight of water as foaming agent. Methyl, lauryl, cetyl, octylphenyl and nonyl phenyl ethers may be used. The foams are applicable for the manufacture of absorptive devices such as wound dressings, sanitary towels, diapers, incontinence pads or tampons.

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patent: 4914173 (1990-04-01), Ansell
patent: 4950695 (1990-08-01), Stone
patent: 5017625 (1991-05-01), Ansell

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