US4115059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic sulfonyl fluorides as peroxygen activators
Assignee: FMC Corp
•
Filing: 1977-10-03
•
Granted: 1978-09-19
•
Expires: 1997-10-03
Abstract
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 aromatic sulfonyl fluoride of the formula ArSO 2 F, wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each ring containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine. Also described are dry blend compositions containing the bleach bath components.
Inventors
- 👤 John H. Blumbergs
- 👤 Fred R. Scholer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:15
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
150 words
A process for the low temperature bleaching of stained and/or soiled fabrics which comprises treating them with an aqueous peroxygen bleaching solution having a pH of about 6 to about 12 and containing as a peroxygen activator therefor, an effective amount of an aromatic sulfonyl fluoride of the formula ArSO 2 F wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine.
Claim 2
Dependent Claim
150 words
A process for the low temperature bleaching of stained and/or soiled fabrics which comprises treating them with an aqueous peroxygen bleaching solution having a pH of about 6 to about 12 and containing as a peroxygen activator therefor, an effective amount of an aromatic sulfonyl fluoride of the formula ArSO 2 F wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine.
Claim 3
Dependent Claim
21 words
The process according to claim 1 wherein the mole ratio of peroxygen to activator is from about 10:1 to about 1:3.
Claim 4
Dependent Claim
13 words
The process according to claim 2 wherein the peroxygen is sodium perborate tetrahydrate.
Claim 5
Dependent Claim
26 words
The process according to claim 2 wherein the quantity of peroxygen is sufficient to provide from about 2 ppm to about 2000 ppm of active oxygen.
Claim 6
Dependent Claim
14 words
The process according to claim 1 wherein the bleach solution contains a detergent agent.
Claim 7
Dependent Claim
21 words
The process according to claim 1 wherein the pH of the bleach solution is maintained by means of a buffering agent.
Claim 8
Dependent Claim
123 words
A bleaching composition consisting essentially of a peroxygen bleaching compound and as a peroxygen activator, an aromatic sulfonyl fluoride having the formula ArSO 2 F wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine.
Claim 9
Dependent Claim
123 words
A bleaching composition consisting essentially of a peroxygen bleaching compound and as a peroxygen activator, an aromatic sulfonyl fluoride having the formula ArSO 2 F wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine.
Claim 10
Dependent Claim
57 words
A bleaching composition consisting essentially of a peroxygen bleaching compound and as a peroxygen activator, an aromatic sulfonyl fluoride of the formula ArSO 2 F wherein Ar is phenyl or naphthyl bearing 1 to 3 substituents selected from the class consisting of nitro, lower alkyl, benzamido, lower aliphatic carboxamido, chlorine, bromine, lower aliphatic acyl and lower alkoxyl.
Claim 11
Dependent Claim
57 words
A bleaching composition consisting essentially of a peroxygen bleaching compound and as a peroxygen activator, an aromatic sulfonyl fluoride of the formula ArSO 2 F wherein Ar is phenyl or naphthyl bearing 1 to 3 substituents selected from the class consisting of nitro, lower alkyl, benzamido, lower aliphatic carboxamido, chlorine, bromine, lower aliphatic acyl and lower alkoxyl.
Claim 12
Dependent Claim
14 words
The composition according to claim 7 wherein the peroxygen compound is sodium perborate tetrahydrate.
Claim 13
Dependent Claim
16 words
A detergent composition consisting essentially of a detergent agent and the composition defined in claim 7.
Claim 14
Dependent Claim
139 words
A bleaching composition consisting essentially of a peroxygen bleaching compound, an aromatic sulfonyl fluoride having the formula ArSO 2 F wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine and sufficient buffering agent to maintain a pH of about 6 to 12 when the bleaching composition is dissolved in water.
Claim 15
Dependent Claim
139 words
A bleaching composition consisting essentially of a peroxygen bleaching compound, an aromatic sulfonyl fluoride having the formula ArSO 2 F wherein Ar is an aromatic ring system selected from the class consisting of a phenyl group, a naphthyl group, and a heterocyclic group having 1 to 2 rings, each containing 5 to 6 members of which 1 to 2 are heteroatoms selected from the class consisting of nitrogen, oxygen and sulfur, said groups optionally bearing substituents selected from the class consisting of nitro, alkyl of 1 to 16 carbon atoms, alkoxy of 1 to 16 carbon atoms, aliphatic carboxamido of 1 to 16 carbon atoms, aliphatic acyl of 1 to 16 carbon atoms, benzamido, benzoyl, chlorine and bromine and sufficient buffering agent to maintain a pH of about 6 to 12 when the bleaching composition is dissolved in water.
Claim 16
Dependent Claim
21 words
The bleaching composition of claim 10 wherein the mole ratio of peroxygen to activator is from about 20:1 to about 1:3.
Claim 17
Dependent Claim
49 words
A detergent composition consisting essentially of (a) from about 5% to about 50% by weight of the bleaching composition of claim 10; (b) from about 5% to about 50% by weight of a detergent agent; and (c) from about 1% to about 60% by weight of a detergency builder.
Claim 18
Dependent Claim
20 words
The detergent composition of claim 12 wherein the peroxygen compound is sodium perborate tetrahydrate and the activator of claim 8.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |