Absorbent films and laminates

Details Absorbent films and laminates Absorbent films and laminates

1977-06-23

1978-09-26

Cannon, J. C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

128156, 264 451, 264 50, 428310, 428314, 428340, 428341, 428342, 428913, 521905, 521149, 521 64, A61F 1318, B32B 2706, B32B 2710, B32B 2712

Patent

active

041171845

ABSTRACT:
Water swellable aerated films and laminates, made from solutions of carboxylic polyelectrolytes, together with methods for their preparation, are disclosed. The films and laminates are cured and/or crosslinked with a polyfunctional or difunctional crosslinking agent that is reactive with carboxylate groups by heating and/or removing substantially all of the water and/or alcohol from the precursor composition. The solutions are mechanically aerated prior to the curing step.
The absorbent articles have a rapid water absorbency rate and are useful as components in diapers, tampons, dressings and the like.

REFERENCES:
patent: 3081181 (1963-03-01), Rutenberg et al.
patent: 3650995 (1972-03-01), Erickson
patent: 3663462 (1972-05-01), Arndt et al.
patent: 3669103 (1972-06-01), Harper et al.
patent: 3670731 (1972-06-01), Harmon
patent: 3887408 (1975-06-01), Hoey
patent: 3926891 (1975-12-01), Gross et al.
patent: 3954721 (1976-05-01), Gross
patent: 3980663 (1976-09-01), Gross
patent: 4000028 (1976-12-01), Hoey

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