US4071456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric-softening compositions
Assignee: Lever Brothers Co
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Filing: 1974-11-06
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Granted: 1978-01-31
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Expires: 1994-11-06
Abstract
Abstract A fabric-softening composition comprises a dispersing agent, in particular a detergent-active compound, and a sultone of from 14 to 30 carbon atoms of the structure ##STR1## in which each of R 1 and R 2 is H or an aliphatic hydrocarbon radical having a chain of from 1 to 27 carbon atoms, at least one of R 1 and R 2 has a chain of at least 10 carbon atoms, and n is 1 or 2. Fabrics are softened by treatment with such a composition in the form of a dilute aqueous dispersion.
Inventors
- 👤 Thomas McGee
- 👤 David William Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M13/228; C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D3/00; C11D3/0005; C11D3/001; C11D3/16; C11D3/34; C11D3/3481; C11D3/39
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
A fabric-softening composition comprising a dispersing agent and a sultone of from 14 to 30 carbon atoms of the structure ##STR3## in which each of R 1 and R 2 is H or an aliphatic hydrocarbon radical having a chain of from 1 to 27 carbon atoms, at least one of R 1 and R 2 has a chain of at least 10 carbon atoms, and n is 1 or 2, containing from 2 to 30% by weight of sultone and from 0.2 to 200 parts of sultone being present to 1 part by weight of dispersing agent; where the dispersing agent includes a detergent-active compound comprising an olefin sulfonate, the composition contains 1-20 parts of detergency builder per 1 part by weight of the detergent-active compound.
Claim 2
Dependent Claim
127 words
A fabric-softening composition comprising a dispersing agent and a sultone of from 14 to 30 carbon atoms of the structure ##STR3## in which each of R 1 and R 2 is H or an aliphatic hydrocarbon radical having a chain of from 1 to 27 carbon atoms, at least one of R 1 and R 2 has a chain of at least 10 carbon atoms, and n is 1 or 2, containing from 2 to 30% by weight of sultone and from 0.2 to 200 parts of sultone being present to 1 part by weight of dispersing agent; where the dispersing agent includes a detergent-active compound comprising an olefin sulfonate, the composition contains 1-20 parts of detergency builder per 1 part by weight of the detergent-active compound.
Claim 3
Dependent Claim
27 words
A composition according to claim 1, wherein the sultone has an unbranched saturated hydrocarbon chain of from 16 to 22 carbon atoms and R 2 is H.
Claim 4
Dependent Claim
16 words
A composition according to claim 2, where the sultone has from 18 to 20 carbon atoms.
Claim 5
Dependent Claim
34 words
A composition according to claim 2, where the dispersing agent is a detergent-active compound, and the composition contains from 1 to 20 parts of detergency builder to 1 part by weight of detergent-active compound.
Claim 6
Dependent Claim
15 words
A composition according to claim 4, where the detergent-active compound is an anionic detergent-active compound.
Claim 7
Dependent Claim
32 words
A composition according to claim 2, in the form of a free flowing powder and from 0.25 to 4 parts of said sultone being present per part by weight of dispersing agent.
Claim 8
Dependent Claim
32 words
A composition according to claim 4, in the form of a free flowing powder and from 0.25 to 4 parts of said sultone being present per part by weight of detergent-active compound.
Claim 9
Dependent Claim
33 words
A composition according to claim 2, in the form of a liquid aqueous dispersion containing from 0.01 to 0.5% by weight of the sultone and at least about 95% by weight of water.
Claim 10
Dependent Claim
42 words
A composition according to claim 1, in the form of a liquid aqueous dispersion containing from 0.01 to 0.5% by weight of the sultone, from 0.01 to 0.5% by weight of detergent-active compound, and at least about 95% by weight of water.
Claim 11
Dependent Claim
20 words
A composition according to claim 4, where at least a major proportion of the detergent-active compound is an alpha-olefin sulphonate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |