Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical
Patent
1977-10-03
1978-09-19
Schulz, William E.
Bleaching and dyeing; fluid treatment and chemical modification
Bleaching
Chemical
252 95, 252 99, 252186, 548337, D06L 302, D06L 304
Patent
active
041150600
ABSTRACT:
A process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator an N-sulfonylimidazole of the formula: ##STR1## wherein R.sub.2, R.sub.3 and R.sub.4 are each selected from the class consisting of hydrogen, halogen, alkoxy of 1 to 16 carbon atoms, carbonylmethoxy, nitro, an aliphatic hydrocarbon radical of 1 to 16 carbon atoms, a cycloaliphatic hydrocarbon radical of 3 to 7 carbon atoms, an aromatic hydrocarbon radical of the benzene and naphthalene series and a heterocyclic radical of 1 to 2 rings each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur while taken together R.sub.3 and R.sub.4 can complete a benzene ring and R.sub.1 is a hydrocarbon or heterocyclic radical as above defined for R.sub.2, R.sub.3 and R.sub.4. Also described are dry blend compositions containing the bleach bath components.
REFERENCES:
patent: 3499001 (1970-03-01), Lutz
patent: 3640874 (1972-02-01), Gray
patent: 3640876 (1972-02-01), Donaghu
patent: 3775333 (1973-11-01), Loffelman et al.
patent: 3840466 (1974-10-01), Gray
Baum Burton M.
Brubaker Gaylen R.
Finley Joseph H.
FMC Corporation
Ianno Frank
Jackson Robert D.
Schulz William E.
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