Extrudable polyvinyl alcohol compositions containing modified st

Details Extrudable polyvinyl alcohol compositions containing modified st Extrudable polyvinyl alcohol compositions containing modified st

1993-02-16

1994-11-08

Nutter, Nathan M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

264 406, 264185, 26421121, 26421122, 26421123, C08L 8900, B29C 6500, D01F 614

Patent

active

053627784

ABSTRACT:
An extrudable polyvinyl alcohol composition useful for packaging and molding applications is prepared by melt blending polyvinyl alcohol and thermoplastic modified starch to provide a product which has reduced water sensitivity, improved modulus and reduced elongation at high relative humidity.
A method for extruding the polyvinyl alcohol composition comprises:

REFERENCES:
patent: 2340866 (1944-02-01), Dangelmajer
patent: 3312641 (1967-04-01), Young
patent: 5051222 (1991-09-01), Marten et al.
patent: 5095054 (1992-03-01), Lay et al.

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