Sizing compositions

Details Sizing compositions Sizing compositions

1978-08-09

1981-01-06

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

162164EP, D21H 302, D21H 348

Patent

active

042434815

ABSTRACT:
Disclosed is a sizing composition in the form of an aqueous emulsion comprising a hydrophobic cellulose-reactive sizing agent, such as a ketene dimer, and a cationic polymer selected from the group consisting of (1) a cationic polymer obtained by reacting an epihalohydrin with a condensate derived by condensing dicyandiamide or cyanamide with bis-aminopropylpiperazine and (2) a cationic polymer obtained by condensing an epihalohydrin with bis-aminopropylpiperazine. The cationic polymer is a sizing accelerator for the sizing agent.

REFERENCES:
patent: 2961366 (1960-11-01), Weisgerber
patent: 3084092 (1963-04-01), Arlt
patent: 3248353 (1966-04-01), Coscia
patent: 3483077 (1969-12-01), Aldrich
patent: 3666512 (1972-05-01), Kulick et al.
patent: 3840486 (1974-10-01), Dumas

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