US3988255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet bars
Assignee: Procter and Gamble Co
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Filing: 1975-12-15
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Granted: 1976-10-26
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Expires: 1995-12-15
Abstract
Abstract Incorporation of particular amounts of certain sorbitan ester mixtures into toilet bars provides products which produce desirable skin benefits. Toilet bars containing these sorbitan ester materials help provide a smooth, soft texture to the skin cleaned therewith and further help to reduce skin scaliness.
Inventors
- 👤 Paul Seiden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:19
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D10/045; C11D9/00; C11D9/04; C11D9/22; C11D9/26; C11D1/00; C11D1/66; C11D1/662; C11D1/667
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
144 words
A toilet bar suitable for providing a soft, smooth skin texture after use, said bar comprising: a. from about 65% to 90% by weight of a soap selected from the group consisting of alkali metal, ammonium, and alkanolamine salts of fatty acids containing from about 8 to 24 carbon atoms; b. from about 1% to 15% by weight of a mixture of non-ethoxylated sorbitan esters, said ester mixture comprising: i. from about 5% to 50% by weight of mixture of mono-ester materials, ii. from about 20% to 90% by weight of mixture of di-ester materials, and iii. from about 0% to 75% by weight of mixture of tri- and tetra-ester materials; the ester moieties in said sorbitan ester materials being derived from fatty alkyl groups containing from about 12 to 22 carbon atoms; and c. from about 4% to 25% by weight of moisture.
Claim 2
Dependent Claim
144 words
A toilet bar suitable for providing a soft, smooth skin texture after use, said bar comprising: a. from about 65% to 90% by weight of a soap selected from the group consisting of alkali metal, ammonium, and alkanolamine salts of fatty acids containing from about 8 to 24 carbon atoms; b. from about 1% to 15% by weight of a mixture of non-ethoxylated sorbitan esters, said ester mixture comprising: i. from about 5% to 50% by weight of mixture of mono-ester materials, ii. from about 20% to 90% by weight of mixture of di-ester materials, and iii. from about 0% to 75% by weight of mixture of tri- and tetra-ester materials; the ester moieties in said sorbitan ester materials being derived from fatty alkyl groups containing from about 12 to 22 carbon atoms; and c. from about 4% to 25% by weight of moisture.
Claim 3
Dependent Claim
78 words
A toilet bar in accordance with claim 1 wherein a. the soap is selected from the group consisting of alkali metal soaps containing from 10 to 20 carbon atoms; and b. the sorbitan ester mixture comprises i. from about 20% to 40% by weight of mixture of mono-ester materials; ii. from about 30% to 60% by weight of mixture of di-ester materials; and iii. from about 0% to 40% by weight of mixture of tri- and tetra-ester materials.
Claim 4
Dependent Claim
48 words
A toilet bar in accordance with claim 2 wherein the soap comprises from about 70% to 80% by weight and is selected from the group consisting of sodium soap and mixtures of sodium and potassium soap, said sodium/potassium soap mixtures containing no more than about 25% potassium soap.
Claim 5
Dependent Claim
50 words
A toilet bar in accordance with claim 3 a. wherein the soap component comprises mixtures of tallow and coconut soaps with tallow/coconut weight ratios within such mixtures varying between 90:10 and 50:50; and b. wherein the sorbitan ester mixture comprises from about 4% to 8% by weight of the bar.
Claim 6
Dependent Claim
38 words
A toilet bar in accordance with claim 4 wherein the sorbitan ester mixture contains 15% or less by weight of the mixture of isosorbide ester structures and 10% or less by weight of the mixture of sorbitol ester.
Claim 7
Dependent Claim
29 words
A toilet bar in accordance with claim 5 which additionally contains from about 1% to 15% by weight of free fatty acids containing from 8 to 20 carbon atoms.
Claim 8
Dependent Claim
37 words
A toilet bar in accordance with claim 5 which additionally contains from about 0.5% to 5% by weight of a skin conditioning agent selected from the group consisting of lanolin, cold cream, mineral oil and isopropyl myristate.
Claim 9
Dependent Claim
23 words
A toilet bar in accordance with claim 5 which additionally contains from about 0.5% to 4% by weight of an antibacterial sanitizer component.
Claim 10
Dependent Claim
83 words
A toilet bar in accordance with claim 1 which additionally contains an ethoxylated sorbitan ester mixture containing from one to 10 oxyethlene moieties at one or more of the unesterified --OH groups, the ester materials in said mixture being the same as indicated for the non-ethoxylated mixture therein, such that the weight ratio of the non-ethoxylated mixture to the ethoxylated mixture is from about 1:3 to 3:1 and the total amount of all sorbitan ester materials is from about 1% to about 15%.
Claim 11
Independent Claim
206 words
A method of imparting a soft, smooth feeling to skin during and after skin cleansing, said method comprising: A. applying to the skin an effective amount of a soap composition from a toilet bar, said bar comprising: i. from about 65% to 90% by weight of a soap selected from the group consisting of alkali metal, ammonium and alkanolamine salts of fatty acids containing from about 8 to 24 carbon atoms; ii. from about 1% to 15% by weight of a skin conditioning agent selected from the group consisting of ethoxylated sorbitan ester mixtures containing from one to 10 oxyethylene moieties at one or more of the unesterified --OH groups and non-ethoxylated sorbitan ester mixtures and combinations thereof, said mixtures comprising a. from about 5% to 50% by weight of mixture of mono-ester materials, b. from about 20% to 90% by weight of mixture of di-ester materials, and c. from about 0% to 60% by weight of mixture of tri- and tetra-ester materials; the ester moieties of the sorbitan esters in said mixtures being derived from fatty alkyl groups containing from about 12 to 22 carbon atoms; and iii. from about 4% to 25% by weight of moisture; and B. subsequently rinsing the skin with water.
Claim 12
Independent Claim
206 words
A method of imparting a soft, smooth feeling to skin during and after skin cleansing, said method comprising: A. applying to the skin an effective amount of a soap composition from a toilet bar, said bar comprising: i. from about 65% to 90% by weight of a soap selected from the group consisting of alkali metal, ammonium and alkanolamine salts of fatty acids containing from about 8 to 24 carbon atoms; ii. from about 1% to 15% by weight of a skin conditioning agent selected from the group consisting of ethoxylated sorbitan ester mixtures containing from one to 10 oxyethylene moieties at one or more of the unesterified --OH groups and non-ethoxylated sorbitan ester mixtures and combinations thereof, said mixtures comprising a. from about 5% to 50% by weight of mixture of mono-ester materials, b. from about 20% to 90% by weight of mixture of di-ester materials, and c. from about 0% to 60% by weight of mixture of tri- and tetra-ester materials; the ester moieties of the sorbitan esters in said mixtures being derived from fatty alkyl groups containing from about 12 to 22 carbon atoms; and iii. from about 4% to 25% by weight of moisture; and B. subsequently rinsing the skin with water.
Claim 13
Dependent Claim
122 words
A method in accordance with claim 10 a. wherein the soap component comprises i. sodium soap or mixtures of sodium and potassium soap with no more than 25% of the sodium/potassium mixture being potassium soap; derived from ii. mixtures of tallow and coconut oil with tallow/coconut weight ratios ranging between about 90:10 and 50:50; and b. wherein the sorbitan ester skin conditioning mixture i. comprises from about 20% to 40% by weight of mono-ester materials, from about 30% to 60% by weight of di-ester materials and from about 0% to 40% by weight of the mixture of tri- and tetra-ester materials; and ii. contains about 15% or less by weight of isosorbide esters and about 6% or less by weight sorbitol ester.
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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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |