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US4416808A
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Bis-betaine-amine oxides, process for their preparation, and cleaning agents containing them
Assignee: Hoechst AG
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Filing: 1982-11-08
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Granted: 1983-11-22
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Expires: 2002-11-08
Abstract
Abstract Bis-betaine-amine oxides of the formula ##STR1## in which R is a saturated or an olefinically unsaturated hydrocarbon radical having 1 to 3 double bonds and 8 to 22 carbon atoms, n 1 and n 2 each is an integer of from 2 to 3, n 1 and n 2 optionally being identical or different, m 1 and m 2 each is an integer of from 1 to 4, m 1 and m 2 optionally being identical or different, and a, b, c and d, being identical or different, each is a number of from 1 to 5, with the proviso that the sum (a+b+c+d) is at most 10. The compounds are prepared from primary amines of the formula RNH 2 , by dicyanoalkylation, hydrogenation, ethoxylation, reaction with alkali metal salts of ω-halocarboxylic acids, and subsequent oxidation with hydrogen peroxide. They are surfactants of mild action and suitable for formulating cosmetic and industrial cleaning agents.
Inventors
- 👤 Gunter Blaschke
- 👤 Alwin Reng
- 👤 Jochen M. Quack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:54
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/90; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61Q; A61Q19/00; A61Q19/10; A61Q5/00; A61Q5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
Bis-betaine-amine oxides of the formula ##STR7## in which R is a saturated or an olefinically unsaturated hydrocarbon radical having 1 to 3 double bonds and 8 to 22 carbon atoms, n 1 and n 2 each is an integer of from 2 to 3, n 1 and n 2 optionally being identical or different, m 1 and m 2 each is an integer of from 1 to 4, m 1 and m 2 optionally being identical or different, and a, b, c and d, being identical or different, each is a number of from 1 to 5, with the proviso that the sum (a+b+c+d) is at most 10.
Claim 2
Dependent Claim
108 words
Bis-betaine-amine oxides of the formula ##STR7## in which R is a saturated or an olefinically unsaturated hydrocarbon radical having 1 to 3 double bonds and 8 to 22 carbon atoms, n 1 and n 2 each is an integer of from 2 to 3, n 1 and n 2 optionally being identical or different, m 1 and m 2 each is an integer of from 1 to 4, m 1 and m 2 optionally being identical or different, and a, b, c and d, being identical or different, each is a number of from 1 to 5, with the proviso that the sum (a+b+c+d) is at most 10.
Claim 3
Dependent Claim
133 words
A process for the preparation of bis-betaine-amine oxides as claimed in claim 1, in which first a primary amine of the formula RNH 2 (II) is reacted with 2 mols of at least one reactive nitrile of 2 to 3 carbon atoms to give a compound of the formula ##STR8## which is reduced in the presence of hydrogen to a compound of the formula ##STR9## which is condensed with ethylene oxide to give a compound of the formula ##STR10## which process comprises quaternizing this compound of the formula (V) in an aqueous solution with at least one alkali metal salt of a ω-halocarboxylic acid of the formula X(CH.sub.2).sub.m.spsb.1.sub.(m.spsb.2.sub.) COOH (VI) to give a bis-betaine of the formula ##STR11## and then oxidizing the bis-betaine obtained with hydrogen peroxide to yield the bis-betaine amine oxide.
Claim 4
Dependent Claim
46 words
A cosmetic cleaning agent, containing water as liquid carrier, at least one surfactant from the group consisting of anionic, cationic, non-ionic and amphoteric surfactants, customary cosmetic additives and auxiliaries, which comprises a surface active effective amount of a bis-betaine amine oxide as claimed in claim 1.
Claim 5
Dependent Claim
46 words
An industrial cleaning agent, containing water as liquid carrier, at least one surfactant from the group consisting of anionic, cationic, non-ionic and amphoteric surfactants and cleaning-promoting additives and customary auxiliaries, which comprises a surface active effective amount of a bis-betaine-amine oxide as claimed in claim 1.
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) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |