Gas and ion permeable membranes formed of polyurethane diacrylat

Details Gas and ion permeable membranes formed of polyurethane diacrylat Gas and ion permeable membranes formed of polyurethane diacrylat

1982-09-01

1984-03-27

Cockeram, H. S.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

424 52, 424 53, 424 62, 424 63, 521905, 525454, 525455, 528 75, 528904, C08F 830, C08L 7500

Patent

active

044395841

ABSTRACT:
Gas and ion permeable membranes useful as burn dressings, surgical drapes and the like formed of polyurethane diacrylate compositions obtained by reacting a diacrylate in the presence of from about 65 to about 95 weight percent of a hydrophilic polyurethane resin. The compositions will form a hydrogel upon immersion in water and are also permeable to other low molecular weight species. The hydrophilic polyurethane diacrylate compositions may be molded to form shaped products that are dimensionally stable after repeated exposure to boiling water and exhibit memory.

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