Thermoplastic compositions for water soluble foams

Details Thermoplastic compositions for water soluble foams Thermoplastic compositions for water soluble foams

1990-10-22

1992-02-18

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 56, 521 79, C08F 1606, C08J 914

Patent

active

050895354

ABSTRACT:
Thermoplastic compositions of internally plasticized polyvinyl alcohol material and a low molecular weight alcohol are provided that can be extruded into water soluble biodegradable foams. The compositions can be modified to provide foams that have varying degrees of water solubility and a broad range of physical characteristics.

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