US 5,180,516 A · Heterocyclic peroxides having N-amidic heteroatoms useful as bleaching agents

Abstract

Heterocyclic (poly)peroxycarboxylic acids having a N-amidic heteroatom, which have the formula: R--(CH.sub.2).sub.m --R' (I) wherein: R and R', alike or different from each other, represent hydrogen atoms or a group: ##STR1## with the proviso that at least one of R and R' shall be different from H, and wherein the other symbols have the following meaning: R" represents a hydrogen atom or any other substituent non-reactive in the presence of the active oxygen of the peroxycarboxylic group and/or under the preparation conditions; m represents a number between 1 to 12; n represents a number selected from 0, 1 and 2; p represents a number between 1 and 3; their process of preparation and their use as bleaching agents.

Claims1

Dependent claims

A method of bleaching, comprising the step of contacting a substrate to be bleached with an effective amount of a heterocyclic (poly)peroxycarboxy acid having an amidic nitrogen heteroatom in the ring, and having the formula:

H--(CH.sub.2).sub.m --R' (I)
wherein
R' is selected from the group:
##STR3## and wherein:
R" is selected from H, F, Cl, NO.sub.2, and:
the carboxylic group (COOH);
C.sub.1 -C.sub.5 alkoxy groups;
the alkyl, cycloalkyl, alkylaryl and arylalkyl groups, containing up to 10 carbon atoms and optionally bearing a substituent group selected from F, Cl, NO.sub.2, the carboxylic group, and the (C.sub.1 -C.sub.5) alkoxy groups;
m is an integer from 1 to 12;
n is 0 or an integer selected from 1 and 2;
p is an integer from 1 to 3, whereby the substrate is bleached.

8 more elements

Dependencies are inferred from the claim text.

Heterocyclic peroxides having N-amidic heteroatoms useful as bleaching agents

Life of this patent

Heterocyclic peroxides having N-amidic heteroatoms useful as bleaching agents

Life of this patent

Abstract

Claims1