US3989647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick lathering toilet bars and method of making same
Assignee: Lever Brothers Co
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Filing: 1973-11-28
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Granted: 1976-11-02
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Expires: 1993-11-28
Abstract
Abstract A non-mushing high lathering synthetic toilet bar comprising, based on the total weight of the actives, 40-85% of C12 alkane sulfonate, 5-35% of a C12 natural or synthetic fatty acid, and 5-30% of an additive selected from the group consisting of hydroxyalkane sulfonates, alkylmethyl taurides, hydroxyalkylmethyl taurides, alkyl phosphates, mono-alkyl succinates and maleates, alkane disulfonates, acyl isethionates, alkyl sulfates and alkene sulfonates.
Inventors
- 👤 Leon M. Prince
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:22
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0047; C11D17/006; C11D1/00; C11D1/02; C11D1/37; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2079
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
134 words
A non-mushing high lathering synthetic toilet bar having a pH of about 4.5-9.5 and comprising based on the total weight of actives: i. 40% to about 85% of a primary alkane sulfonate or a mixture of alkane sulfonates wherein the carbon chain contains 12 carbon atoms or averages 12 carbon atoms; ii. 5 to about 35% of a natural or synthetic fatty acid or mixtures thereof wherein the carbon chain contains 12 carbon atoms or averages 12 carbon atoms; iii. 5 to about 30% of a binder modifier selected from the group consisting of: alkali metal, magnesium or ammonium salts of C 10 -C 16 acyl isethionates, alkali metal, magnesium or ammonium salts of C 6 -C 14 alkylsulfosuccinates, and mixtures thereof; and iv. based on the total weight of the bar, 5-25% water.
Claim 2
Dependent Claim
134 words
A non-mushing high lathering synthetic toilet bar having a pH of about 4.5-9.5 and comprising based on the total weight of actives: i. 40% to about 85% of a primary alkane sulfonate or a mixture of alkane sulfonates wherein the carbon chain contains 12 carbon atoms or averages 12 carbon atoms; ii. 5 to about 35% of a natural or synthetic fatty acid or mixtures thereof wherein the carbon chain contains 12 carbon atoms or averages 12 carbon atoms; iii. 5 to about 30% of a binder modifier selected from the group consisting of: alkali metal, magnesium or ammonium salts of C 10 -C 16 acyl isethionates, alkali metal, magnesium or ammonium salts of C 6 -C 14 alkylsulfosuccinates, and mixtures thereof; and iv. based on the total weight of the bar, 5-25% water.
Claim 3
Dependent Claim
16 words
The toilet bar of claim 1 wherein the alkane sulfonate is a C 12 alkane sulfonate.
Claim 4
Dependent Claim
15 words
The toilet bar of claim 1 wherein the fatty acids are C 12 fatty acids.
Claim 5
Dependent Claim
22 words
The toilet bar of claim 1 wherein the alkane sulfonate is present in an amount ranging from about 55 to about 80%.
Claim 6
Dependent Claim
22 words
The toilet bar of claim 1 wherein the fatty acid is present in an amount ranging from about 10 to about 25%.
Claim 7
Dependent Claim
22 words
The toilet bar of claim 1 wherein the binder modifier is present in an amount ranging from about 10 to about 25%.
Claim 8
Dependent Claim
24 words
The toilet bar of claim 1 wherein the alkane sulfonate fraction consists of 40-60% of C 10 homologs and 60-40% of C 14 homologs.
Claim 9
Dependent Claim
54 words
The toilet bar of claim 1 wherein the alkane sulfonate is present in an amount of about 56% and consists of an equal mixture of C 10 and C 14 homologs; the fatty acid is present in an amount of about 23%; and the binder modifier is present in an amount of about 16%.
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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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |