US4464273A
Expired / Lapsed
US
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Fabric softening composition
Assignee: LEVERKUSEN BROTHERS COMPANY A CORP OF MAINE
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Filing: 1983-01-24
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Granted: 1984-08-07
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Expires: 2003-01-24
Abstract
Abstract A fabric softening composition comprises an aqueous base, a cationic fabric softener, lanolin and a viscosity control agent selected from electrolytes, polymers such as polyethylene glycol, C 12 -C 40 hydrocarbons and halogen derivatives, C 9 -C 24 fatty acids, fatty acid esters of monohydric alcohols, C 10 -C 18 fatty alcohols or water miscible solvents. Preferred compositions contain 0.5-30% cationic softener, 0.25-40% lanolin (with a cationic softener to lanolin ratio of 20:1 to 1:20) and 0.5-50% viscosity control agent. The lanolin may be replaced by a lanolin-like material such as derivatives thereof or one or more of the active constituents of lanolin either extracted therefrom or derived from other sources. The viscosity of the compositions is generally less than 300 cP, such as 150-250 cP. The presence of lanolin enables concentrated products to be formed, particularly containing more than 10% lanolin.
Inventors
- 👤 Michael W. Parslow
- 👤 Edwin Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:39
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/384; C11D1/00; C11D1/38; C11D1/62; C11D3/0005; C11D3/001; C11D3/0015; C11D3/18; C11D3/20; C11D3/2003; C11D3/2006; C11D3/201; C11D3/2013; C11D3/2075; C11D3/2093; C11D3/37; C11D3/3703; C11D3/3707
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
A fabric softening composition comprising an aqueous base and a cationic fabric softening agent, wherein it further comprises (i) from about 10% to about 40% lanolin or a lanolin-like material; and (ii) an effective amount to control viscosity of a viscosity control agent selected from (a) electrolytes; (b) polymers as herein defined; (c) C 12 -C 40 hydro-carbons and halogen derivatives thereof; (d) C 9 -C 24 fatty acids; (e) fatty acid esters of monohydric alcohols, the esters having a total of 10 to 40 carbon atoms; (f) C 10 -C 18 fatty alcohols; and (g) a water miscible solvent for said cationic softening agent; the composition further characterized by a viscosity of between about 150 and about 250 cP measured at 25° C. and 110 sec -1 in a Haake Viscometer.
Claim 2
Dependent Claim
132 words
A fabric softening composition comprising an aqueous base and a cationic fabric softening agent, wherein it further comprises (i) from about 10% to about 40% lanolin or a lanolin-like material; and (ii) an effective amount to control viscosity of a viscosity control agent selected from (a) electrolytes; (b) polymers as herein defined; (c) C 12 -C 40 hydro-carbons and halogen derivatives thereof; (d) C 9 -C 24 fatty acids; (e) fatty acid esters of monohydric alcohols, the esters having a total of 10 to 40 carbon atoms; (f) C 10 -C 18 fatty alcohols; and (g) a water miscible solvent for said cationic softening agent; the composition further characterized by a viscosity of between about 150 and about 250 cP measured at 25° C. and 110 sec -1 in a Haake Viscometer.
Claim 3
Dependent Claim
31 words
A fabric softening composition according to claim 1, wherein the weight ratio of said lanolin or lanolin-like material to said cationic fabric softening agent lies between about 0.05:1 and about 20:1.
Claim 4
Dependent Claim
18 words
A fabric softening composition according to claim 2, wherein said ratio lies between about 0.1:1 and about 10:1.
Claim 5
Dependent Claim
21 words
A fabric softening composition according to claim 1, wherein it contains more than about 10% by weight lanolin or lanolin-like material.
Claim 6
Dependent Claim
41 words
A fabric softening composition according to claim 1, comprising: from about 0.5% to about 30% cationic fabric softening agent; from about 10% to about 40% lanolin or lanolin-like material; and from about 0.5% to about 50% of said viscosity control agent.
Claim 7
Dependent Claim
41 words
A fabric softening composition according to claim 1, comprising: from about 1% to about 15% cationic fabric softening agent; from about 10% to about 20% lanolin or lanolin-like material; and from about 1% to about 25% of said viscosity control agent.
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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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |