US4075234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrated soap making
Assignee: Procter and Gamble Co
•
Filing: 1976-10-12
•
Granted: 1978-02-21
•
Expires: 1996-10-12
Abstract
Abstract Sodium and lithium salts of organic carboxylic acids are prepared by saponifying the corresponding organic carboxylic acid ester with a concentrated aqueous solution of sodium hydroxide or lithium hydroxide in a liquid reaction medium comprising an alkyl nitrile, separating said salts from the reaction mixture, and removing excess alkyl nitrile from the salts.
Inventors
- 👤 Donald John Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:05
CPC Classifications
C; C11; C11D; C11D13/00; C07; C07C; C07C51/00; C07C51/41; C07C51/412; C07C53/00; C07C53/126; C07C55/00; C07C55/02; C07C55/14; C07C59/00; C07C59/01
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
57 words
A process for preparing the sodium or lithium salts of organic carboxylic acids which comprises saponifying the corresponding organic carboxylic acid ester with a concentrated aqueous solution of sodium hydroxide or lithium hydroxide in a liquid reaction medium comprising an alkyl nitrile, separating said salts from the reaction mixture, and removing excess alkyl nitrile from the salts.
Claim 2
Dependent Claim
57 words
A process for preparing the sodium or lithium salts of organic carboxylic acids which comprises saponifying the corresponding organic carboxylic acid ester with a concentrated aqueous solution of sodium hydroxide or lithium hydroxide in a liquid reaction medium comprising an alkyl nitrile, separating said salts from the reaction mixture, and removing excess alkyl nitrile from the salts.
Claim 3
Dependent Claim
15 words
A process according to claim 1 wherein the organic acid ester is a glyceride ester.
Claim 4
Dependent Claim
13 words
A process according to claim 2 wherein the glyceride ester is a tryglyceride.
Claim 5
Dependent Claim
22 words
A process according to claim 1 wherein the alkyl nitrile is a member selected from the group consisting of acetonitrile and propionitrile.
Claim 6
Dependent Claim
34 words
A process according to claim 1 for preparing lubricating greases comprising saponifying a C 10 -C 24 organic acid ester with a concentrated aqueous solution of lithium hydroxide in an alkyl nitrile reaction medium.
Claim 7
Dependent Claim
15 words
A process according to claim 5 wherein the organic acid ester is a glyceride ester.
Claim 8
Dependent Claim
13 words
A process according to claim 6 wherein the glyceride ester is a triglyceride.
Claim 9
Dependent Claim
22 words
A process according to claim 5 wherein the alkyl nitrile is a member selected from the group consisting of acetonitrile and propionitrile.
Claim 10
Dependent Claim
32 words
A process according to claim 7 wherein the alkyl nitrile is acetonitrile and wherein the ester comprises the mixed glyceride esters derived from animal fats and oils or vegetable fats and oils.
Claim 11
Dependent Claim
15 words
A process according to claim 9 wherein the mixed glyceride esters comprise hydrogenated castor oil.
Claim 12
Dependent Claim
33 words
A process according to claim 1 for preparing soap comprising saponifying a C 10l -C 20 organic acid ester with a concentrated aqueous solution of sodium hydroxide in an alkyl nitrile reaction medium.
Claim 13
Dependent Claim
15 words
A process according to claim 11 wherein the organic acid ester is a glyceride ester.
Claim 14
Dependent Claim
13 words
A process according to claim 12 wherein the glyceride ester is a triglyceride.
Claim 15
Dependent Claim
22 words
A process according to claim 11 wherein the alkyl nitrile is a member selected from the group consisting of acetonitrile and propionitrile.
Claim 16
Dependent Claim
32 words
A process according to claim 11 wherein the alkyl nitrile is acetonitrile and wherein the ester comprises the mixed glyceride esters derived from animal fats and oils or vegetable fats and oils.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |