Cellulosic materials internally sized with ammoniated acid copol

Details Cellulosic materials internally sized with ammoniated acid copol Cellulosic materials internally sized with ammoniated acid copol

1976-05-07

1980-01-01

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Non-fiber additive

162168N, 162168NA, D21H 340

Patent

active

041815661

ABSTRACT:
Cellulosic materials such as paper are internally sized by treating fibers of the cellulosic material, e.g., paper pulp, with a copolymer of an .alpha.,.beta.-ethylenically unsaturated hydrophobic monomer and an ammoniated .alpha.,.beta.-ethylenically unsaturated carboxylic acid and a reaction product of epihalohydrin and alkylamine. Internal sizing of the cellulosic material by this method can be carried out over complete range of pH and is not adversely affected by the presence of contaminants such as alum.

REFERENCES:
patent: 2694629 (1954-11-01), Reynolds
patent: 3248353 (1966-04-01), Coscia
patent: 3409500 (1968-11-01), Strazdins et al.
patent: 3821069 (1974-06-01), Wurzburg
Union Carbide Brochure F-42958 "Products for Paper-PCX-300 An Alkali-Dispersible Ethylene Copolymer" pp. 1-14, printed 10/70.

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