US3872138A
Expired / Lapsed
US
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Process for the preparation of quaternary ammonium salts
Assignee: Kao Corp
•
Filing: 1972-11-06
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Granted: 1975-03-18
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Expires: 1992-11-06
Abstract
Abstract A quaternary ammonium salt containing an ester linkage in the cationic moiety is prepared by reacting an epihalohydrin with a salt of an alkyl or alkenyl tertiary amine and a carboxylic acid.
Inventors
- 👤 Yuzuru Ogata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:30
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C07; C07C; C07C211/00; C07C211/62; C07C211/63; C07C213/00; C07C213/08; C07C215/00; C07C215/02; C07C215/40; C07C217/00; C07C217/02; C07C217/04; C07C217/28; C07C219/00; C07C219/02; C07C219/04; C07C219/06; C07C2601/00; C07C2601/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
18 words
A PROCESS FOR PREPARING QUATERNARY AMMONIUM SALTS CONTAINING AN ESTER LINKAGE IN THE CATIONIC MOIETY, OF THE FORMULA
Claim 2
Dependent Claim
18 words
A PROCESS FOR PREPARING QUATERNARY AMMONIUM SALTS CONTAINING AN ESTER LINKAGE IN THE CATIONIC MOIETY, OF THE FORMULA
Claim 3
Dependent Claim
26 words
A process according to claim 1, in which the reaction is carried out at a temperature of 50* to 150*C in the presence of a solvent.
Claim 4
Dependent Claim
64 words
A process according to claim 1, in which said tertiary amine is selected from the group consisting of trimethylamine, triethylamine, trinormalpropylamine, dimethylethylamine, methyldiethylamine, dimethylallylamine, diethyallylamine, dimethyldodecylamine, dimethyloctadecylamine, trioctylamine, trioctadecylamine and trioleylamine and mixtures thereof and said carboxylic acid is selected from the group consisting of acetic acid, lauric acid, crotonic acid, acrylic acid, methacrylic acid, oleic acid, 1-adamantyl carboxylic acid and cyclohexyl carboxylic acid.
Claim 5
Dependent Claim
11 words
The process of claim 3, in which said epihalohydrin is epichlorohydrin.
Claim 6
Dependent Claim
49 words
A process according to claim 1, in which each of R1, R2 and R3 is alkyl having 1 to 18 carbon atoms and R is selected from the group consisting of alkyl having 1 to 17 carbon atoms, alkenyl having from 2 to 17 carbon atoms, adamantyl and cyclohexyl.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |