Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical
Patent
1992-11-06
1995-05-16
Willis, Jr., Prince
Bleaching and dyeing; fluid treatment and chemical modification
Bleaching
Chemical
252 94, 252 95, 252 86, 252 87, 252 875, 252 88, 252 89, 25218642, 568566, C11D 339, C11D 3395, D06L 302
Patent
active
054156688
ABSTRACT:
##STR1## The invention concerns diacylated dipercarboxylic acids according to general formula (I), in which R.sub.1 and R.sub.2 are hydrocarbon groups having from 1 to 15 carbon atoms, and X is electron attracting by being an optionally substituted phenyl group, an optionally substituted heterocycle in which the hetero atom is positioned so that from 2 to 4 carbon atoms are present between the hetero atom and each one of the carbonyl carbons of the diperacid, or by comprising at least one electron attracting functional group positioned so that a carbon chain having from 2 to 4 carbon atoms is present between said electron attracting group and each one of the carbonyl carbons of the diperacid, wherein the electron attracting group contains oxygen, sulfur, nitrogen, phosphorus, halogen, optionally substituted phenyl, or at least two conjugated double bonds, R.sub.1 and R.sub.2 are hydrocarbon groups having from 1 to 15 carbon atoms, except compounds in which X consists of a phenyl group having the carbonyl carbons in 1,4 position and both of R.sub.1 and R.sub.2 are acetyl or both of R.sub.1 and R.sub.2 are nonyl. The invention also concerns a method of their preparation, a composition useful for bleaching and a method of bleaching.
REFERENCES:
patent: 3287338 (1966-11-01), Guillet
patent: 3316228 (1967-04-01), Guillet et al.
patent: 3337602 (1967-08-01), Guillet et al.
patent: 3476813 (1969-11-01), Guillet
patent: 3652631 (1972-03-01), Stevens et al.
patent: 3850891 (1974-11-01), Crawford
patent: 4756845 (1988-07-01), Sugawara et al.
patent: 4824591 (1989-04-01), Dyroff et al.
Kirk-Othmer Encyclopedia of Chemical Technology, 3rd Edition, vol. 3, (1978), pp. 944-945.
Chemical Abstracts #CA70(25):114529e, 1967 no month available.
Chemical Abstracts #CA69(1):2638n, 1968 no month available.
Chemical Abstracts #CA76(7):33579t, 1971 no month available.
Chemical Abstracts #CA97(16):128106j, 1982 no month available.
L. Heslinga et al, "Diperoxycarboxylic Anhydrides and Their Urea Adducts as Peroxy Acid Precursors", 85 (1966) Recueil, pp. 75-85, no month available.
Organic Peroxides, vol. 1, Fels Research Institute and Department of Chemistry, Temple University, Wiley-Interscience, pp. 65-67, 388-389 and 427-430, no month available.
Chem. Abstract, vol. 110 No. 7, Feb. 13, 1989, V. S. Dutka et al, "Induced decomposition of diacyl peroxides", see p. 619, Abstract 56930k.
Chemical Abstracts, vol. 79, No. 25, Dec. 24, 1973, Galibei et al, "Peroxide derivatives of dibasic aliphatic acids with diacyl and perester groups", p. 279, Abstract 145931.
Forsstrom Annbritt
Lagnemo Hans
Diamond Alan D.
Eka Nobel AB
Willis Jr. Prince
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