American Cyanamid Company

Peter A Jarovitzky

Roger E Neff

Robin William Dexter

Yun-Lung Fu

Novel N-chloroamide polymers and a process for the production thereof are disclosed.

Polymers and process of making same

Aqueous solutions of polyacrylamides are acidified and then reacted with halogen gas or hypohalites to provide N-halogenated polymers. The product of the process are good wet strength additives for paper made from aqueous pulps of paper making fibers.

Process for the preparation of N-haloamide polymers

The use of a cyclic compound containing a ##STR1## group, i.e., methone, has been found to allow a poor acrylamide or acrylic acid or 2-acrylamide-2-methylpropane sulfonic acid and its salts monomer to be polymerized to a polymer having improved performance characteristics and/or improved rates of polymerization. Optionally, urea is added with the methone.

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Stamford, CT, United States of America

Peter A Jarovitzky