Disposable composite insensitive to surface moisture but disinte

Details Disposable composite insensitive to surface moisture but disinte Disposable composite insensitive to surface moisture but disinte

1978-03-27

1980-01-29

Ives, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428518, 428520, 428523, 128284, 128156, B32B 702, A61F 1316

Patent

active

041862333

ABSTRACT:
A disposable composite comprising an absorbent, swellable film such as a lightly cross-linked polyacrylate, having on its two major surfaces a hydrophobic coating such as polyvinylidene chloride, is useful as a liner or packaging for disposable articles such as sanitary napkins. The hydrophobic coating protects the coated surfaces of the absorbent, swellable film from moisture, thereby maintaining the composite's integrity during use. Upon the composite's immersion in an aqueous fluid, the exposure of any uncoated film to water causes the composite to disintegrate, providing for easy flushability.

REFERENCES:
patent: 3669103 (1972-06-01), Harper
patent: 3804092 (1974-04-01), Tunc
patent: 3934587 (1976-01-01), Gordon
patent: 3952347 (1976-04-01), Comerford
patent: 3967623 (1976-07-01), Butterworth et al.
patent: 3983095 (1976-09-01), Bashaw et al.
patent: 4074039 (1978-02-01), Lim et al.

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