US4687602A
Expired / Lapsed
US
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Novel 2-substituted 3-sulfopropyl-ammonium betaines and processes for making same
Assignee: Berlin-Brandenburg Academy of Sciences and Humanities
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Filing: 1985-06-24
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Granted: 1987-08-18
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Expires: 2005-06-24
Abstract
Abstract Novel 2-substituted 3-sulfo propyl-ammonium betaines are disclosed which have the formula <IMAGE> and which are obtained in accordance with the invention by reacting allyl-or methallyl ammonium salt with hydrogen sulfite in the pH-value- of 2,0 to 4,0 in the presence of a peroxo disulfates, if need be, in combination with other oxidation agents in watery solution. The novel compounds are useable in a wide pH-value effective tensides or may be used as reactive intermediary products.
Inventors
- 👤 Detlef Ballschuh
- 👤 Horst Seibt
- 👤 Jochen Rusche
- 👤 Roland Ohme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:46
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
2-substituted 3-sulfo propyl-ammonium betaine of formula I, ##STR35## wherein: (a) SO 2 M or (b) SO 3 M, whereby M is selected from the group consisting of H, Na, K and NH 4 , (B) R is (a) hydrogen or (b) methyl, (C) R 1 and R 2 independent from each other are (a) hydrogen, (b) alkyl with 1 to 3 C-atoms, (c) 2-hydroxyethyl or (d) oxyethylene residues with up to 10 ethylene oxide units, and (D) R 3 is (a) hydrogen or (b) alkyl with 1 to 22 C-atoms, whereby --NH--CO-- or --CO--NH-- may be contained in the chain.
Claim 2
Dependent Claim
100 words
2-substituted 3-sulfo propyl-ammonium betaine of formula I, ##STR35## wherein: (a) SO 2 M or (b) SO 3 M, whereby M is selected from the group consisting of H, Na, K and NH 4 , (B) R is (a) hydrogen or (b) methyl, (C) R 1 and R 2 independent from each other are (a) hydrogen, (b) alkyl with 1 to 3 C-atoms, (c) 2-hydroxyethyl or (d) oxyethylene residues with up to 10 ethylene oxide units, and (D) R 3 is (a) hydrogen or (b) alkyl with 1 to 22 C-atoms, whereby --NH--CO-- or --CO--NH-- may be contained in the chain.
References Cited (Backward Citations)
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US3200127A
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US3198822A
Cited
US4267123A
Cited
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Cited
DD200739A1
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DD225989A1
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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) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |