US4297230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-crystallizing transparent soap bars
Assignee: Procter and Gamble Co
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Filing: 1980-01-31
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Granted: 1981-10-27
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Expires: 2000-01-31
Abstract
Abstract Soap bars, which contain at least about 1% potassium soap and 0.15% chloride anions, and which additionally comprise water and a selected sodium potassium or ammonium salt electrolyte, particularly potassium carbonate, dipotassium monohydrogen orthophosphate, tetrapotassium pyrophosphate, potassium tripolyphosphate, tripotassium orthophosphate, or sodium and/or potassium formates, citrates, tartrates, or acetates, are disclosed. These soap bars do not form undesirable crystals, either on their surfaces or internally, after periods of use or storage and, additionally, exhibit improved lathering performance and decreased scum formation.
Inventors
- 👤 Jacobus C. Rasser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:45
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/02; C11D17/00; C11D17/0047; C11D17/006; C11D17/0095; C11D9/04; C11D9/06; C11D9/08; C11D9/10; C11D9/22; C11D9/26
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
96 words
A transparent soap bar, consisting essentially of from about 4% to about 20% potassium soap, the balance of the soap component of said soap bar comprising sodium, ammonium or alkanolamine soap, at least about 0.2% chloride anions, from about 4% to about 25% moisture and from about 0.2% to about 5% of an electrolyte selected from the group consisting of potassium carbonate, sodium formate, potassium formate, sodium tartrate, potassium tartrate, sodium citrate, potassium citrate, sodium acetate, potassium acetate, potassium ammonium tartrate, ammonium acetate, ammonium carbonate, ammonium formate, ammonium citrate, ammonium lactate, ammonium bisulfate, and mixtures thereof.
Claim 2
Dependent Claim
96 words
A transparent soap bar, consisting essentially of from about 4% to about 20% potassium soap, the balance of the soap component of said soap bar comprising sodium, ammonium or alkanolamine soap, at least about 0.2% chloride anions, from about 4% to about 25% moisture and from about 0.2% to about 5% of an electrolyte selected from the group consisting of potassium carbonate, sodium formate, potassium formate, sodium tartrate, potassium tartrate, sodium citrate, potassium citrate, sodium acetate, potassium acetate, potassium ammonium tartrate, ammonium acetate, ammonium carbonate, ammonium formate, ammonium citrate, ammonium lactate, ammonium bisulfate, and mixtures thereof.
Claim 3
Dependent Claim
18 words
A soap bar according to claim 1 which contains from about 0.5% to about 3% of said electrolyte.
Claim 4
Dependent Claim
36 words
A soap bar according to claim 2 wherein said electrolyte is selected from the group consisting of potassium formate, potassium citrate, potassium acetate, potassium tartrate, sodium formate, sodium citrate, sodium acetate, sodium tartrate, and mixtures thereof.
Claim 5
Dependent Claim
13 words
A soap bar according to claim 3 wherein said electrolyte is potassium citrate.
Claim 6
Dependent Claim
19 words
A soap bar according to claim 1, which is milled and contains at least about 70% beta phase material.
Claim 7
Dependent Claim
17 words
A soap bar according to claim 1 which additionally contains from about 0.2% to about 10% glycerine.
Claim 8
Dependent Claim
56 words
A soap bar, characterized in that it comprises from about 1% to about 20% potassium soap, the balance of the soap component of said soap bar comprising sodium, ammonium or alkanolamine soap, at least about 0.15% chloride anions, from about 4% to about 25% moisture and from about 0.5% to about 3% of potassium carbonate electrolyte.
Claim 9
Dependent Claim
56 words
A soap bar, characterized in that it comprises from about 1% to about 20% potassium soap, the balance of the soap component of said soap bar comprising sodium, ammonium or alkanolamine soap, at least about 0.15% chloride anions, from about 4% to about 25% moisture and from about 0.5% to about 3% of potassium carbonate electrolyte.
Claim 10
Dependent Claim
67 words
A transparent soap bar which does not form crystals upon use or storage, comprising from about 1% to about 20% potassium soap, the balance of the soap component of said soap bar comprising a mixture of sodium soaps of coconut and tallow fatty acids, at least about 0.15% chloride anions, from about 4% to about 25% moisture and from about 0.2% to about 5% of potassium citrate.
Claim 11
Dependent Claim
67 words
A transparent soap bar which does not form crystals upon use or storage, comprising from about 1% to about 20% potassium soap, the balance of the soap component of said soap bar comprising a mixture of sodium soaps of coconut and tallow fatty acids, at least about 0.15% chloride anions, from about 4% to about 25% moisture and from about 0.2% to about 5% of potassium citrate.
Claim 12
Dependent Claim
111 words
In a method of manufacturing a transparent soap bar comprising the usual steps of milling or otherwise mechanically working the sodium soap of coconut or tallow fatty acids, or mixtures thereof, said soap containing sodium chloride as a processing aid, thereby imparting transparency to said soap, and thereafter extruding or otherwise forming the worked soap into bars, the improvement which comprises adding from about 0.2% to about 5% by weight of an electrolyte selected from the group consisting of potassium citrate, potassium tartrate and potassium carbonate to the soap prior to or during mechanical working, whereby a soap bar which does not undesirably form crystals upon use or storage is provided.
Claim 13
Dependent Claim
111 words
In a method of manufacturing a transparent soap bar comprising the usual steps of milling or otherwise mechanically working the sodium soap of coconut or tallow fatty acids, or mixtures thereof, said soap containing sodium chloride as a processing aid, thereby imparting transparency to said soap, and thereafter extruding or otherwise forming the worked soap into bars, the improvement which comprises adding from about 0.2% to about 5% by weight of an electrolyte selected from the group consisting of potassium citrate, potassium tartrate and potassium carbonate to the soap prior to or during mechanical working, whereby a soap bar which does not undesirably form crystals upon use or storage is provided.
Claim 14
Dependent Claim
12 words
A process according to claim 9 wherein the electrolyte is potassium citrate.
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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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |