US4806253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laundry compositions
Assignee: Procter and Gamble Co
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Filing: 1986-05-23
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Granted: 1989-02-21
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Expires: 2006-05-23
Abstract
Abstract Fabric softening is provided by water-soluble di-c 6-10 quaternary ammonium salts and clay. Through-the-wash fabric softening is achieved concurrently with fabric cleaning by means of clays and water-soluble quaternaries. Compositions and sheet-form articles embodying soluble quaternary softeners are described.
Inventors
- 👤 James C. T. R. Burckett St. Laurent
- 👤 Alfred Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:22
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/1253; C11D3/126
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
56 words
A detergent composition comprising detersive surfactant, builders and other conventional detersive ingredients, and "2-7 wt. %" clay fabric softener, characterized in that it contains 1-5 wt % of a water-soluble -di-C 1 -C 4 , di- C 6 -C 10 alkyl quaternary ammonium salt and not more than 3% by weight of alkoxylated nonionic detersive surfactant.
Claim 2
Dependent Claim
56 words
A detergent composition comprising detersive surfactant, builders and other conventional detersive ingredients, and "2-7 wt. %" clay fabric softener, characterized in that it contains 1-5 wt % of a water-soluble -di-C 1 -C 4 , di- C 6 -C 10 alkyl quaternary ammonium salt and not more than 3% by weight of alkoxylated nonionic detersive surfactant.
Claim 3
Dependent Claim
28 words
A composition according to claim 1 wherein the quaternary ammonium salt is selected from dioctyl dimethyl, didecyl dimethyl, octyl decyl dimethyl and dihexyldimethyl ammonium salts, and mixtures thereof.
Claim 4
Dependent Claim
15 words
A composition according to claim 1 wherein the clay fabric softener is the smectite clay.
Claim 5
Dependent Claim
18 words
A composition according to claim 3 wherein contains not more than 2% of an alkoxylated nonionic detersive surfactant.
Claim 6
Dependent Claim
23 words
A composition according to claim 4 which contains a detergency builder selected from phosphate, nitrilotriacetate, polycarboxylate, citrate and zeolite builders, or mixtures thereof.
Claim 7
Dependent Claim
64 words
A composition according to claim 1 which comprises: (a) 1-5% of a water-soluble quaternary ammonium salt selected from dioctyl dimethyl ammonium, didecyl dimethyl ammonium, octyl decyl diethyl and dihexyldimethyl ammonium salts; (b) 2-7% of a smectile clay softener, (c) 0-1% alkoxylated nonionic detersive surfactant; and (d) the balance comprising conventional detergent ingredients at conventional levels; said composition being in the form of spray-dried granules.
Claim 8
Independent Claim
23 words
A method of softening fabrics by contacting said fabrics with an aqueous solution comprising at least 500 ppm of composition according to claim.
Claim 9
Dependent Claim
23 words
A composition according to claim 5 wherein the detergency builder comprises zeolite A having a particle size of from 1 to 10 microns.
Claim 10
Dependent Claim
16 words
A composition according to claim 2 wherein the quaternary ammonium salt is a dioctyldimethyl ammonium salt.
References Cited (Backward Citations)
GB1400898A
Cited
US3966629A
Cited
GB1483627A
Cited
GB1514276A
Cited
US4321165A
Cited
US4292035A
Cited
US4375416A
Cited
US4294710A
Cited
US4338204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |