Temporary wet strength resins with nitrogen heterocyclic nonnucl

Details Temporary wet strength resins with nitrogen heterocyclic nonnucl Temporary wet strength resins with nitrogen heterocyclic nonnucl

1989-04-26

1991-01-01

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

162111, 162112, 1621685, D21H 1745

Patent

active

049815571

ABSTRACT:
Temporary wet strength resins, and paper products containing same, having a molecular weight of from about 20,000 to about 200,000, most preferably from about 30,000 to aboug 95,000 having the fomula: ##STR1## wherein: A is 0 or ##STR2## and X is --O--, --NH--, or --NCH.sub.3 --, and R is a substituted or unsubstituted aliphatic group; Y.sub.1 and Y.sub.2 are independently --H, --CH.sub.3, or a halogen; W is a nonnucleophilic, water-soluble nitrogen heterocyclic moiety; and Q is a cationic monomeric unit. The mole percent of "a" ranges from about 30% to about 70%, preferably from about 45% to about 55%; the mole percent of "b" ranges from about 30% to about 70%, preferably from about 45% to about 55%; and the mole percent of "c" ranges from about 1% to about 40%, most preferably from about 2% to about 5%.

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Surfaces Coatings Related Paper Wood, Symp. "Mechanisms of Wet-Strength Development in Paper", Syracuse, N.Y., 1967, 269-299 (Eng.).
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