US3954845A
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Synthetic detergents of the ampholytic betaine type, process for preparing the same and compositions
Assignee: Nouryon Surface Chemistry AB
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Filing: 1973-11-28
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Granted: 1976-05-04
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Expires: 1993-11-28
Abstract
Abstract Synthetic detergents of the ampholytic betaine type are provided, having a 2-hydroxy propylene ether group attached to the nitrogen atom of the betaine; the 2-hydroxy propylene ether group optionally can include a plurality of oxyalkylene units. The process for preparing these betaines easily and inexpensively involves reaction of an alcohol or hydroxy compound with epichlorohydrin to form the corresponding chloroglyceryl ether, which can be aminated and quaternized either in two stages, by reaction of a dialkyl amine and a straight or branched halogenated carboxylic acid, or in one stage by reaction of an amino acid. Detergent compositions containing these betaines are also provided.
Inventors
- 👤 Eva Margareta Martinsson
- 👤 Karl Martin Edvin Hellsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:11
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/94; C11D1/90; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
7 words
An ampholytic betaine having the formula: ##EQU20##
Claim 2
Dependent Claim
7 words
An ampholytic betaine having the formula: ##EQU20##
Claim 3
Dependent Claim
214 words
wherein 1. R is selected from the group consisting of alkyl, alkenyl, alkadienyl, alkatrienyl, and cycloalkyl groups having from about six to about twenty-two carbon atoms and alkyl phenyl and alkyl naphthyl groups linked to the oxygen of the OR group via a crabon of the phenyl or naphthyl nucleus and having from one to six alkyl groups, totalling from about four to about eighteen carbon atoms in the alkyl groups, each alkyl group having from one to about eighteen carbon atoms; 2. R 1 and R 2 are selected from the group consisting of alkyl groups having from one to about three carbon atoms; 3. n 1 , n 2 and n 3 represent the number of carbon atoms in each unit, and are within the range from 2 to 4; 4 m 1 , m 2 and m 3 represent the number of oxyalkylene units, and are within the range from 0 to 10, at least one of m 1 , m 2 and m 3 is at least 1, and the sum of m 1 , m 2 and m 3 is within the range from 1 to 10; and 5 n 4 represents the number of carbon atoms in the unit, and is within the range from 1 to 4.
Claim 4
Dependent Claim
214 words
wherein 1. R is selected from the group consisting of alkyl, alkenyl, alkadienyl, alkatrienyl, and cycloalkyl groups having from about six to about twenty-two carbon atoms and alkyl phenyl and alkyl naphthyl groups linked to the oxygen of the OR group via a crabon of the phenyl or naphthyl nucleus and having from one to six alkyl groups, totalling from about four to about eighteen carbon atoms in the alkyl groups, each alkyl group having from one to about eighteen carbon atoms; 2. R 1 and R 2 are selected from the group consisting of alkyl groups having from one to about three carbon atoms; 3. n 1 , n 2 and n 3 represent the number of carbon atoms in each unit, and are within the range from 2 to 4; 4 m 1 , m 2 and m 3 represent the number of oxyalkylene units, and are within the range from 0 to 10, at least one of m 1 , m 2 and m 3 is at least 1, and the sum of m 1 , m 2 and m 3 is within the range from 1 to 10; and 5 n 4 represents the number of carbon atoms in the unit, and is within the range from 1 to 4.
Claim 5
Dependent Claim
33 words
An ampholytic betaine according to claim 1, in which n 4 is 1, so that both the nitrogen atom and the carboxylic group of the betaine are linked to a single carbon atom.
Claim 6
Dependent Claim
36 words
An ampholytic betaine according to claim 1, in which n 1 , n 2 and n 3 are 2 and at least one of m 1 , m 2 and m 3 is 1 or 2.
Claim 7
Dependent Claim
19 words
An ampholytic betain according to claim 1, in which m 1 , m 2 and m 3 are 1.
Claim 8
Dependent Claim
14 words
An ampholytic betaine according to claim 1, in which R is alkyl or alkenyl.
Claim 9
Dependent Claim
12 words
An ampholytic betaine according to claim 1, in which R is cycloalkyl.
Claim 10
Dependent Claim
16 words
An ampholytic betain according to claim 1, in which R is alkyl substituted phenyl or naphthyl.
Claim 11
Dependent Claim
14 words
An ampholytic betaine according to claim 1, in which the oxyalkylene units include oxyethylene.
Claim 12
Dependent Claim
14 words
An ampholytic betaine according to claim 1, in which the oxyalkylene units include oxypropylene.
Claim 13
Dependent Claim
14 words
An ampholytic betaine according to claim 1, in which the oxyalkylene units include oxybutylene.
Claim 14
Dependent Claim
22 words
An ampholytic betaine according to claim 1, in which R 1 and R 2 are each methyl and n 4 is 1.
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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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |