Paper products containing wet strength resins

Details Paper products containing wet strength resins Paper products containing wet strength resins

1986-05-15

1987-11-24

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621646, 1621647, 1621682, D21H 358

Patent

active

047087722

ABSTRACT:
Disclosed are novel wet strength resins for paper, said resins being derived by reacting an epihalohydrin, such as epichlorohydrin, with a polyamino-copolyamide derived by reacting methylbisaminopropylamine with (a) a diester of oxalic acid and (b) a diester of a saturated dicarboxylic acid containing at least 4 carbon atoms, the mole ratio of (a) to (b) being from about 0.25:1 to about 10:1.

REFERENCES:
patent: 2926154 (1960-02-01), Keim
patent: 3311594 (1967-03-01), Earle, Jr.
patent: 3793279 (1974-02-01), Liposwski
patent: 3887510 (1975-06-01), Chan et al.
patent: 3891589 (1975-06-01), Ray-Chaudhuri
patent: 4388439 (1983-06-01), Maslanka
patent: 4515657 (1985-05-01), Maslanka

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