Absorbent polymer material and its preparation

Details Absorbent polymer material and its preparation Absorbent polymer material and its preparation

1985-06-14

1986-05-06

Welsh, Maurice J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 18, 524 21, 524 24, 524 28, 524 32, 524 35, C08F29900

Patent

active

045872848

ABSTRACT:
An enhanced water-absorbency hydrophilic polymer material, suitable for use in for example wound dressings, is prepared by a process in which a water-containing organic hydrogel comprising a gelable polysaccharide and/or protein or polypeptide interspersed with a polymer of a hydrophilic acrylic or methacrylic acid derivative is permeated with a base, the pH of said hydrogel being raised to at least 9 during treatment with said base.

REFERENCES:
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patent: 3871376 (1975-03-01), Kozak
patent: 3901236 (1975-08-01), Assarsson et al.
patent: 3965091 (1976-06-01), Holst et al.
patent: 3980084 (1976-09-01), Kross
patent: 3997484 (1976-12-01), Weaver et al.
patent: 4028290 (1977-06-01), Reid
patent: 4076663 (1978-02-01), Masuda et al.
patent: 4192727 (1980-03-01), Ward
patent: 4200557 (1980-04-01), Chatterjee et al.
patent: 4487864 (1984-12-01), Bermudez et al.
patent: 4541871 (1985-09-01), Obayashi et al.

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