Water-soluble film from copolymers of vinyl alcohol and...

Details Water-soluble film from copolymers of vinyl alcohol and... Water-soluble film from copolymers of vinyl alcohol and...

2008-03-17

2009-10-27

Egwim, Kelechi C (Department: 1796)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S561000, C524S564000, C524S803000, C526S318300, C526S318400, C526S318440, C526S318500, C526S330000, C526S329500

Reexamination Certificate

active

07608661

ABSTRACT:
The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95 % hydrolyzed, and a process for preparing the same.

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