US4076744A
Expired / Lapsed
US
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Amphoteric surfactants
Assignee: Stepan Co
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Filing: 1977-05-23
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Granted: 1978-02-28
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Expires: 1997-05-23
Abstract
Abstract Non-irritant amphoteric surfactants having the formula: <IMAGE> having preservative properties and compatible with anionic surfactants, where R is an alkyl group of from 8 to 14 carbon atoms, and where M' M'', M''' and MIV may be the same or different and represent a monovalent moiety selected from the group consisting of hydrogen, alkali metal, ammonium ion, or ammonium ion which is substituted by from 1 to 3 lower alkyl groups, said alkyl groups being optionally substituted by one hydroxyl group.
Inventors
- 👤 Saul Kaplan
- 👤 John J. Merianos
- 👤 Harold A. Green
- 👤 Alfonso N. Petrocci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; C11D1/00; C11D1/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
Compound having the structure: ##STR6## where R is an alkyl group of from 8 to 14 carbon atoms, and where M', M'', M''', and M IV may be the same or different and constitute monovalent moieties selected from the group consisting of hydrogen, alkali metal, ammonium ion, and ammonium ion that is substituted by from 1 to 3 lower alkyl groups, each of from 1 to 3 carbon atoms, and wherein each of said alkyl groups is either unsubstituted or is substituted by one hydroxyl group.
Claim 2
Dependent Claim
86 words
Compound having the structure: ##STR6## where R is an alkyl group of from 8 to 14 carbon atoms, and where M', M'', M''', and M IV may be the same or different and constitute monovalent moieties selected from the group consisting of hydrogen, alkali metal, ammonium ion, and ammonium ion that is substituted by from 1 to 3 lower alkyl groups, each of from 1 to 3 carbon atoms, and wherein each of said alkyl groups is either unsubstituted or is substituted by one hydroxyl group.
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) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |