American Cyanamid Company

Robert F Tarvin

Robert J Proverb

Gerald J Guerro

Anthony T Coscia

Dinshaw Framroze Bardoliwalla

A cationic, water-soluble acrylamide polymer containing an acrylamide, a cationic comonomer and, optionally, a second comonomer and having sufficient glyoxal-reactive amide substituents and --CH.sub.O HCHO substituents to be thermosetting, the polymer, before glyoxylation, having a molecular weight ranging from about 500 to about 6000, a process for imparting temporary wet strength to paper and the paper per se, are disclosed.

Temporary wet strength resin

Polyquaternary polymeric flocculants, containing a substantially reduced total residual amount of epihalohydrin and 1,3-dihalo-2-propanol and less than about 1000 ppm of dialkylamine, are produced by reacting a polyquaternary polymer prepared from epihalohydrin, dialkylamine, and optionally a polyfunctional amine with a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl (C.sub.1 -C.sub.3), and R.sub.5 is hydrogen or hydroxyl.

Growing community of inventors

Fairfield, CT, United States of America

Robert F Tarvin