Temporary wet strength resins

Details Temporary wet strength resins Temporary wet strength resins

C - Chemistry, Metallurgy

08

F

117/43, 9/53, 40

C08F 8/00 (2006.01) C08F 8/28 (2006.01) C08F 8/44 (2006.01)

Patent

CA 1279145

TEMPORARY WET STRENGTH RESINS ABSTRACT Temporary wet strength resin polymers having the formula Image wherein A is a polar, non-nucleophilic unit which does not cause said resin polymer to become water-insoluble; B is a hydrophilic, cationic unit which imparts a positive charge to the resin poly- mer; each R is H, C1-C4 alkyl or halogen; wherein the mole percent of W is from about 5% to about 95%; the mole percent of X is from about 3% to about 65%; the mole percent of Y is from about 1% to about 20%; and the mole percent of Z is from about 1% to about 10%: said resin polymer having a molecular weight of from about 5,000 to about 200,000. These resins, when incorporated into paper products provide good dry and initial wet tensile strength together with excellent wet tensile decay .

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