Films and absorbent articles made from copolymers having a copol

Details Films and absorbent articles made from copolymers having a copol Films and absorbent articles made from copolymers having a copol

1975-08-20

1978-01-31

Lowe, James B.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

128156, 260 295HN, 260 296TA, 260 793M, 264216, 427 2, 427385R, 427385B, 427390R, 427391, 428290, 428500, 526240, 526304, 526317, B32B 2730, C08F22034, B29D 702

Patent

active

040716503

ABSTRACT:
Water swellable absorbent articles, made from copolymers having a copolymerized crosslinker, together with methods for their preparation, and a composition containing a copolymerized crosslinker useful to make said articles are disclosed. The copolymers comprise 25-98% by weight of an alkali metal salt of an olefinically unsaturated monosulfonic or monocarboxylic acid, about 2-50% by weight of an olefinically unsaturated monocarboxylic acid and about 0.1-5.0% by weight of an N-substituted acrylamide or methacrylamide. The articles are crosslinked by heating and/or removing substantialy all of the water from the precursor composition.
The absorbent articles are useful as surgical sponges, diapers, tampons, meat trays, bath mats and the like.

REFERENCES:
patent: 3808305 (1974-04-01), Gregor
patent: 3957710 (1976-05-01), Rohmann et al.

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