Extrudable polyvinyl alcohol compositions containing thermoplast

Details Extrudable polyvinyl alcohol compositions containing thermoplast Extrudable polyvinyl alcohol compositions containing thermoplast

1991-10-18

1993-04-27

Michl, Paul R.

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...

524378, 524503, 524803, C08K 506, C08L 2904

Patent

active

052062783

ABSTRACT:
An extrudable polyvinyl alcohol composition useful for packaging and molding applications is prepared by melt blending polyvinyl alcohol and thermoplastic polyethylene oxide to provide a product which has improved pH stability and salt solution solubility. Useful extruded articles prepared from such compositions include films and containers.
A method for extruding the polyvinyl alcohol composition comprises:

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patent: 4747976 (1988-05-01), Yang
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