Cellulosic paper containing the reaction product of a dihaloalkane alkylene diamine adduct and epihalohydrin
AssigneeMonsanto Company
InventorsJohn P. Petrovich, David L. Taylor
Life of this patent
Estimating the term…
Abstract
Cellulosic substrates containing a cationic resinous composition comprising reaction products of (A) adducts of certain dihaloalkanes and alkylene diamine and (B) certain epihalohydrins to increase wet strength.
Claims8
A cellulosic paper having improved wet strength which comprises a cellulosic paper and a sufficient amount of thermosetting cationic resinous composition to impart wet strength, said resinous composition comprising the reaction product of
- (A) an adduct of
- (1) a dihaloalkane represented by the formula ##STR2## wherein X represents chloro, bromo, or iodo, R is hydrogen, hydroxy or alkyl group having 1 to 4 carbon atoms, and n is 0 or 1, and
- (2) alkylene diamine represented by the formula
- H.sub.2 N C.sub.m H.sub.2m NH.sub.2
- wherein m is an integer of from 4 to about 15 in a mole ratio of from about 0.5:1 to about 0.95:1 and
- (B) an epihalohydrin selected from the group consisting of epichlorohydrin, epibromohydrin, and epiiodohydrin,
- in a mole ratio of from about 1.25 to about 2.5 moles of epihalohydrin per mole of amine group in said adduct, and said resinous composition having been cured to a water insoluble state after application to said cellulosic paper.
A cellulosic paper having improved wet strength which comprises a cellulosic paper and a sufficient amount of thermosetting cationic resinous composition to impart wet strength, said resinous composition comprising the reaction product of an adduct of dichloroethane with hexamethylene diamine in a mole ratio of from 0.5:1 to about 0.95:1 and epichlorohydrin in a mole ratio of from about 1.5 to about 2.25 moles of epichlorohydrin per mole of amine group in the adduct, the said resinous product having been cured to a water-insoluble state after application to said paper.
Dependencies are inferred from the claim text.