Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1972-08-30
1977-02-22
Gwinnell, Harry J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
128284, 128287, 128290W, 260DIG43, 428291, B32B 2704, B32B 2710
Patent
active
040093131
ABSTRACT:
A self-supporting, non-woven composite web is described which is readily dispersible in aqueous media containing enzymes. The web comprises intersecting randomly or partially oriented fibers and has low wet-strength in the absence of a binder, the fibers being bonded in web form by a polymeric binder which is attacked and disintegrated by enzymes, thus permitting the fibers to disperse rapidly in aqueous milieu containing enzymes. The webs of the invention are useful for production of articles useful for absorbing body wastes, e.g. diapers, bandages, etc.
REFERENCES:
patent: 1761111 (1930-06-01), Doty
patent: 3034922 (1962-05-01), Boe
patent: 3444859 (1969-05-01), Kalwaites
patent: 3507661 (1970-04-01), Ofstead
patent: 3532647 (1970-10-01), Ritson et al.
patent: 3619236 (1971-11-01), Dappen et al.
patent: 3651210 (1972-03-01), Shepler et al.
patent: 3706595 (1972-12-01), Drelich et al.
Crawford George H.
Nawrot Charles F.
Ofstead Ronald F.
Gwinnell Harry J.
Minnesota Mining and Manufacturing Company
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