Non-woven fabrics bonded with pH sensitive film-forming silane c

Details Non-woven fabrics bonded with pH sensitive film-forming silane c Non-woven fabrics bonded with pH sensitive film-forming silane c

1975-12-29

1977-07-12

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428 35, 428201, 428286, 428447, 428913, 526279, B32B 714, A61F 1316

Patent

active

040355403

ABSTRACT:
A pH-sensitive polymeric composition is used as a binder for other materials, such as webs of non-woven water-dispersible fibers, to produce products which are completely disposable at selected non-neutral pH's. The polymeric composition, which has film-forming characteristics and water-barrier properties at substantially neutral pH's and yet is solubilizable and thus disposable at substantially non-neutral pH's, comprises a silane crosslinked interpolymer of an alkyl acrylate and a monomer interpolymerizable therewith such as, in the preferred alkaline labile embodiment, acrylic acid. The silane crosslinking monomer is preferably 3-(trimethoxysilyl)-propyl methacrylate or 3-(trimethoxysilyl)-propyl acrylate.

REFERENCES:
patent: 3480016 (1969-11-01), Costanza et al.
patent: 3617362 (1971-11-01), Bemmels et al.
patent: 3706697 (1972-12-01), Backderf
patent: 3716399 (1973-02-01), Nitzsche et al.

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