US4060522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonamido containing carboxylic acids
Assignee: BASF SE
•
Filing: 1976-03-15
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Granted: 1977-11-29
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Expires: 1996-03-15
Abstract
Abstract Amidosulfocarboxylic acids, their preparation from primary or secondary amines and chlorosulfocarboxylic acids, and their use as anticorrosive agents.
Inventors
- 👤 Wolfgang Kindscher
- 👤 Martin Fischer
- 👤 Karl Eicken
- 👤 Guenter Vitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:09
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/22; C07D295/26; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/164
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
A compound of formula I ##STR3## wherein R 1 denotes straight-chain or branched-chain, saturated or olefinically or acetylenically unsaturated alkyl of from 1 to 18 or 3 to 18 carbon atoms respectively, corresponding alkyl substituted by a methoxy or ethoxy group, cycloalkyl of from 5 to 12 ring members, phenyl, phenyl substituted by C 1-3 alkyl, methoxy or ethoxy groups or halogen atoms, or phenylalkyl of from 1 to 5 carbon atoms in the alkyl group, R 2 denotes hydrogen or R 1 , R 1 and R 2 form, together with the nitrogen atoms, a piperidine, pyrrolidine or morpholine ring, R 3 denotes alkylene of from 2 to 5 carbon atoms, and X + denotes an alkali metal or ammonium cation or proton.
Claim 2
Dependent Claim
124 words
A compound of formula I ##STR3## wherein R 1 denotes straight-chain or branched-chain, saturated or olefinically or acetylenically unsaturated alkyl of from 1 to 18 or 3 to 18 carbon atoms respectively, corresponding alkyl substituted by a methoxy or ethoxy group, cycloalkyl of from 5 to 12 ring members, phenyl, phenyl substituted by C 1-3 alkyl, methoxy or ethoxy groups or halogen atoms, or phenylalkyl of from 1 to 5 carbon atoms in the alkyl group, R 2 denotes hydrogen or R 1 , R 1 and R 2 form, together with the nitrogen atoms, a piperidine, pyrrolidine or morpholine ring, R 3 denotes alkylene of from 2 to 5 carbon atoms, and X + denotes an alkali metal or ammonium cation or proton.
Claim 3
Dependent Claim
68 words
A compound as set forth in claim 1 wherein R 1 denotes methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, n-hexyl, n-octyl, hexyl, 2-ethylhexyl, methoxyethyl, cyclohexyl, n-dodecyl, stearyl, oleyl, 2-methylbutyn-2-yl, phenyl, tolyl, anisidyl, phenetidyl, benzyl, phenylethyl, phenyl-n-butyl or phenyl-n-hexyl, R 2 denotes hydrogen or the same or a different R 1 , and R 1 and R 2 form, together with the nitrogen atom, the piperidine, pyrrolidine or morpholine ring.
Claim 4
Dependent Claim
17 words
A compound as set forth in claim 1 wherein R 3 denotes ethylene, propylene, butylene or isobutylene.
Claim 5
Dependent Claim
63 words
A compound as set forth in claim 1 wherein X - denotes a cation of mono-, di- or trimethylamine, mono-, di- or triethylamine, mono-, di- or triethylamine, mono-, di- or triisopropylamine, mono-, di-, or triisopropylamine, mono-, di- or triisobutylamine, 2-methoxyethylamine, 3-methoxypropylamine, 2-ethylhexylamine, mono-, di- or triethanolamine, 3-aminopropanol, cyclohexylamine, N,N-dimethylcyclohexylamine, morpholine, pyridine, quinoline, ethylenediamine, diethylenetriamine, pentaethylenehexamine or the corresponding ethoxylated or propoxylated primary amines.
References Cited (Backward Citations)
US3506711A
Cited
US3661917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |