Quaternary compounds as brightness enhancers

Details Quaternary compounds as brightness enhancers Quaternary compounds as brightness enhancers

1993-07-27

1995-10-17

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 78, 162 81, 162 82, D21C 910

Patent

active

054587379

ABSTRACT:
A process is disclosed for maximizing the brightness of wood pulps which have been treated with anionic bleaching agents wherein the brightness is enhanced by the use of selected quaternary ammonium compounds.

REFERENCES:
patent: 1572478 (1926-02-01), Hammond
patent: 1923178 (1933-08-01), Ulrich et al.
patent: 2003928 (1935-06-01), Evans et al.
patent: 2019124 (1935-10-01), Evans et al.
patent: 2164930 (1939-07-01), Lubs
patent: 2218479 (1940-10-01), Peterson et al.
patent: 2248128 (1941-07-01), Seymour et al.
patent: 2525770 (1950-10-01), Cook et al.
patent: 2587597 (1952-03-01), Cook et al.
patent: 2860944 (1958-11-01), Young
patent: 2902453 (1959-09-01), Matlin
patent: 2985500 (1961-05-01), Janson et al.
patent: 2986488 (1961-05-01), Weisgerber et al.
patent: 3074774 (1963-01-01), Sapers et al.
patent: 3361794 (1968-01-01), Wakeman et al.
patent: 3554863 (1971-01-01), Hervey et al.
patent: 3591325 (1971-07-01), Sapers
patent: 3617439 (1971-11-01), Chapman
patent: 3666409 (1972-05-01), Yoshikawa et al.
patent: 3956165 (1976-05-01), Hansen et al.
patent: 3960649 (1976-06-01), Sullivan
patent: 4013505 (1977-03-01), Balcar et al.
patent: 4144122 (1979-03-01), Emanuelsson et al.
patent: 4441962 (1984-04-01), Osborn
patent: 4444621 (1984-04-01), Lindahl
patent: 4557801 (1985-12-01), Avis
patent: 4618400 (1986-10-01), Wood et al.
patent: 4632730 (1986-12-01), Ulubay et al.
patent: 4666558 (1987-05-01), Wood et al.
patent: 4710267 (1987-12-01), Elsby et al.
patent: 5013404 (1991-05-01), Christiansen et al.
patent: 5129987 (1992-07-01), Joachimides et al.
Dyeing and Chemical Technology of Textile Fibers, by E. R. Troutman (fifth edition, Charles Griffin and Co. Ltd., Great Britain, 1975).
C. R. Noller, Textbook of Organic Chemistry (W. B. Saunders Co., Philadelphia, Pennsylvania, 1966) at p. 224.
Advanced Organic Chemistry, J. March (third edition, John Wiley & Sons, New York, 1985) at pp. 364-368, 845.

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