US3926829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superfatted soap and process of producing it
Assignee: Colgate Palmolive Co
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Filing: 1974-03-20
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Granted: 1975-12-16
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Expires: 1994-03-20
Abstract
Abstract Superfatted soap, especially toilet soap bars, comprising the alkali metal, preferably sodium, salts of fatty acids, free fatty acids in the range of about 4% to 15% by weight of the total fatty acid content of the soap, and an electrolyte content of less than about 1% by weight of the soap. The soap is produced by fully saponifying the fatty charge, e.g., in a kettle by the kettle soap making process and working up the saponified mass to the fitting stage, adding sufficient acidifying agent, e.g., a mineral acid and preferably hydrochloric acid, to liberate from about 4% to 15% of fatty acids based on the total fatty acid content, separating the acidified mass into neat soap and nigre, and working up the neat soap into bars.
Inventors
- 👤 Brian Robson Smith
- 👤 Kenneth Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:51
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/02; C11D9/00; C11D9/04; C11D9/48
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
29 words
THE PROCESS OF PRODUCING SOAP CHARACTERIZED BY A HIGHER RATIO OF SATURATED FATTY ACIDS TO UNSATURATED FATTY ACIDS IN A NEAT SOAP PHASE THAN IN A NIGRE PHASE COMPRISING:
Claim 2
Dependent Claim
29 words
THE PROCESS OF PRODUCING SOAP CHARACTERIZED BY A HIGHER RATIO OF SATURATED FATTY ACIDS TO UNSATURATED FATTY ACIDS IN A NEAT SOAP PHASE THAN IN A NIGRE PHASE COMPRISING:
Claim 3
Dependent Claim
96 words
ADDING TO AN ALKALI METAL SOAP SELECTED FROM THE GROUP CONSISTING OF SODIUM SOAP AND A MIXTURE OF SODIUM SOAP AND UP TO 15% POTTASSIUM SOAP, SAID SOAP BEING OBTAINED BY SAPONIFYING A FATTY MIXTURE OF 40-90% TALLOW AND 10-60% COCONUT OIL WITH SODIUM HYDROXIDE AND PRECIPITATING WITH SALT, JUST PRIOR TO THE FITTING STAGE A SUFFICIENT QUANTITY OF HYDROCHLORIC ACID TO PRODUCE A FREE FATTY ACID CONTENT OF ABOUT 4% TO ABOUT 15% BBASED ON THE TOTAL FATTY ACID CONTENT OF SAID SOAP AND TO FORM A SALT BY NEUTRALIZIN ANY REMAINING SODIUM HYDROXIDE AND
Claim 4
Dependent Claim
96 words
ADDING TO AN ALKALI METAL SOAP SELECTED FROM THE GROUP CONSISTING OF SODIUM SOAP AND A MIXTURE OF SODIUM SOAP AND UP TO 15% POTTASSIUM SOAP, SAID SOAP BEING OBTAINED BY SAPONIFYING A FATTY MIXTURE OF 40-90% TALLOW AND 10-60% COCONUT OIL WITH SODIUM HYDROXIDE AND PRECIPITATING WITH SALT, JUST PRIOR TO THE FITTING STAGE A SUFFICIENT QUANTITY OF HYDROCHLORIC ACID TO PRODUCE A FREE FATTY ACID CONTENT OF ABOUT 4% TO ABOUT 15% BBASED ON THE TOTAL FATTY ACID CONTENT OF SAID SOAP AND TO FORM A SALT BY NEUTRALIZIN ANY REMAINING SODIUM HYDROXIDE AND
Claim 5
Dependent Claim
17 words
SEPARATING THE ACIDIFIED SOAP INTO NEAT SOAP AND NIGRE, AND WORKING UP THE NEAT SOAP INTO BARS.
Claim 6
Dependent Claim
17 words
SEPARATING THE ACIDIFIED SOAP INTO NEAT SOAP AND NIGRE, AND WORKING UP THE NEAT SOAP INTO BARS.
Claim 7
Dependent Claim
17 words
separating the acidified soap into neat soap and nigre, and working up the neat soap into bars.
Claim 8
Dependent Claim
17 words
separating the acidified soap into neat soap and nigre, and working up the neat soap into bars.
Claim 9
Dependent Claim
53 words
The process according to claim 1 wherein step (2) is conducted by adding salt and water to the acidified soap and boiling same, the amount of water being sufficient to dissolve a part but less than all of the soap mass, to produce an undissolved neat soap phase and a dissolved nigre phase.
Claim 10
Dependent Claim
28 words
The process according to claim 2 wherein the nigre phase is removed and the remaining nigre free undissolved neat soap phase is reboiled and salt is added thereto.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |