Coating processes – With post-treatment of coating or coating material – Chemical agent applied to treat coating
Patent
1978-09-05
1979-08-14
Smith, Ronald H.
Coating processes
With post-treatment of coating or coating material
Chemical agent applied to treat coating
162135, 162136, 264128, 427 2, 427342, 427377, 427394, 427395, 427411, 427412, B05D 310
Patent
active
041645952
ABSTRACT:
A premoistened wiper having high initial wet strength in a wetting liquid, and lower wet strength when immersed in substantially neutral water to allow for flushability. The wiper includes a nonwoven web of fibrous material which is bonded together by a polymeric adhesive binder, with the bonded web being moistened until the time of use by a wetting liquid having an acid pH level which is safe for external use on the human body. The binder is composed of a material which is highly adhesive in an acid pH liquid to bind the fibers of the web together, and which is further resistant to weakening over the relatively long periods of shelf life of the wiper. However, the binder loses its binding strength in substantially neutral or alkaline flush water to allow for flushability. The bonded wiper is maintained with wetting liquid thereon within a moisture sealed container until the time of use, and readily loses strength and disintegrates when disposed of in the substantially neutral water of a sewer system.
REFERENCES:
patent: 2036036 (1936-03-01), Gibbons
patent: 2170043 (1939-08-01), Worrall
patent: 3354032 (1967-11-01), Sommer et al.
patent: 3483014 (1969-12-01), Isaacs et al.
patent: 3580253 (1971-05-01), Benardin
patent: 3707430 (1972-12-01), Costanza et al.
Adams James W.
Reinke Orville H.
American Can Company
Auber Robert P.
Bell J. A.
Engstrom Harry C.
Smith Ronald H.
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