Aqueous sizing composition comprising ketene dimer and epihalohy

Details Aqueous sizing composition comprising ketene dimer and epihalohy Aqueous sizing composition comprising ketene dimer and epihalohy

1981-07-02

1983-10-04

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

162158, 524253, 524358, 524359, 524360, 524364, 524606, 524608, 525430, 525435, 528342, C08L 7706, C08G 6948

Patent

active

044079940

ABSTRACT:
Disclosed is a method for sizing paper wherein the sizing agent employed is a hydrophobic cellulose reactive sizing agent such as a ketene dimer sizing agent. There is employed in combination with the sizing agent a novel sizing accelerator. Disclosed also is a novel sizing composition comprised of the sizing agent and the accelerator, the accelerator being a water-soluble nitrogen-containing reaction product of (1) a water-soluble polyaminopolyamide, such as that derived by reaction of adipic acid and diethylene-triamine; (2) an epihalohydrin, such as epichlorohydrin; and (3) a composition comprising, by weight, from about 20% to about 65% bis(hexamethylene)triamine, said composition being the residue obtained after recovery of hexamethylenediamine from its manufacture by hydrogenation of adiponitrile.

REFERENCES:
patent: 3891589 (1975-06-01), Ray-Chaudhuri
patent: 3988280 (1976-10-01), Aldrich et al.
patent: 4240935 (1980-12-01), Dumas
patent: 4243481 (1981-01-01), Dumas
Noller-Chemistry of Organic Compounds, 1957, Second Edition, p. 762.

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