Process for producing a foamed polyvinyl alcohol film

Details Process for producing a foamed polyvinyl alcohol film Process for producing a foamed polyvinyl alcohol film

1991-08-12

1992-09-15

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 97, C08F 1606, C08J 900

Patent

active

051478994

ABSTRACT:
A process for producing a foamed polyvinyl alcohol film, which comprises mechanically foaming an aqueous solution containing a polyvinyl alcohol and a plasticizer, coating the foamed solution on the substrate, followed by heat-drying.

REFERENCES:
patent: 2664366 (1949-09-01), Wilson
patent: 2876085 (1959-03-01), Morie
patent: 3141003 (1964-07-01), Neros
patent: 3481886 (1969-12-01), Lawes
patent: 3492250 (1970-01-01), Deyrup
patent: 3591523 (1971-07-01), Stafford
patent: 4663358 (1987-05-01), Hyon et al.
Chemical Abstracts, vol. 77, No. 12, abstract no. 76083q, Columbus, Ohio, U.S.; and JP-A-46 035 972.
Database WPI No. 80, abstract No. 67352c, Derwent Publications Ltd., London, GB; and SU-A-713 901.

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