Stabilized polymer compositions

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...

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526317, C08L 3300

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active

044355394

ABSTRACT:
Carboxylic acid/hydroxyalkyl ester copolymers of about 100,000-500,000 molecular weight are solubilized and stabilized to render the aqueous solutions thereof resistant to gelation while maintaining the viscosity of the solutions at manageable levels, by partially neutralizing the copolymers. Typical copolymers contain (a) acrylic or methacrylic acid and (b) hydroxyethyl or hydroxypropyl acrylate or methacrylate, in a monomer weight ratio (a:b) of 95:5 to 50:50, and are neutralized 25-75%. The copolymers are useful as viscose dope modifiers in the production of high fluid holding rayon alloy fibers.

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