Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-02-07
1998-05-19
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 56, C08F 1606
Patent
active
057537526
ABSTRACT:
Polymers containing a high percentage of vinyl alcohol units are difficult to process into sheet, film, injection-molded objects, or fibers. Such melt-processing is greatly enhanced by admixing certain core/shell copolymers having a rubbery, preferably crosslinked core mainly of units derived from butadiene, and an outer shell mainly of a copolymer of styrene and acrylonitrile. Such copolymers do not require the presence of functional groups capable of reaction with the hydroxyl groups of the poly(vinyl alcohol).
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Cruz Carlos Alfonso
Diaz Thierry Christian Claude
Meyer Jean-Philippe Gaetan
Aylward D.
Frickey Darryl P.
Hermenau Ronald S.
Marquis Melvyn I.
Rohm and Haas Company
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