Patent US5128055A successfully refreshed from Google Patents.
US5128055A
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Fabric conditioning composition
Assignee: Lever Brothers Co
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Filing: 1991-08-15
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Granted: 1992-07-07
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Expires: 2011-08-15
Abstract
Abstract A fabric conditioning composition in solid or liquid form contains a non-cationic softening agent and a nonionic cellulose ether derivative to improve deposition of the softener on fabrics. Preferred derivatives have a gel point below 55° C. and an HLB of less than 3.6. Ethyl, hydroxylethyl cellulose ether is preferred. The exemplified softeners are soaps, petroleum jelly, glycerol monostearate. A cationic softener such as a quaternary ammonium salt may optionally be present. When the compositions are in liquid form the presence of a dispersing aid is preferred.
Inventors
- 👤 Francis G. Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:45
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D3/18; C11D3/2093; C11D9/00; C11D9/04; C11D9/22; C11D9/26; C11D9/262
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
A liquid fabric rinse conditioning composition for treating fabrics in the rinse step of a fabric laundering process, the composition yielding a pH below 8.0 when added to water at a temperature of 25° C. in a concentration of 1% by weight, the composition consisting essentially of: (i) from 1 to 40% by weight of a non-cationic fabric softening agent or a mixture of a non-cationic fabric softening agent with a cationic fabric softening agent, the weight ratio of the non-cationic fabric softening agent to the cationic fabric softening agent being at least 2:1; and (ii) from 0.1 to 5% by weight of an ethyl hydroxyethyl cellulose ether having an HLB-value of below 3.6, a gel point of below 55° C. and a DP of between 70 and 1200; and (iii) from 1-2.5% by weight of a water-insoluble non-anionic surfactant, having an HLB of greater than 10, as dispersing aid.
Claim 2
Dependent Claim
150 words
A liquid fabric rinse conditioning composition for treating fabrics in the rinse step of a fabric laundering process, the composition yielding a pH below 8.0 when added to water at a temperature of 25° C. in a concentration of 1% by weight, the composition consisting essentially of: (i) from 1 to 40% by weight of a non-cationic fabric softening agent or a mixture of a non-cationic fabric softening agent with a cationic fabric softening agent, the weight ratio of the non-cationic fabric softening agent to the cationic fabric softening agent being at least 2:1; and (ii) from 0.1 to 5% by weight of an ethyl hydroxyethyl cellulose ether having an HLB-value of below 3.6, a gel point of below 55° C. and a DP of between 70 and 1200; and (iii) from 1-2.5% by weight of a water-insoluble non-anionic surfactant, having an HLB of greater than 10, as dispersing aid.
Claim 3
Dependent Claim
37 words
A composition according to claim 1 wherein the non-cationic fabric softening agent is selected from (i) saps; (ii) fatty acids; (iii) hydrocarbons; (iv) esters of polyhydric alcohols; (v) lanolin; and (vi) alkylene oxide condensates of fatty materials.
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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) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |