US4280960A
Expired / Lapsed
US
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Phosphonic acid esters
Assignee: Bayer AG
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Filing: 1979-11-23
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Granted: 1981-07-28
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Expires: 1999-11-23
Abstract
Abstract Phosphonic acid esters of the general formula ##STR1## in which R represents a C 12 -C 22 -alkyl or-alkenyl radical, a C 7 --C 18 -aralkyl radical or a radical of the formula --R 4 --O--CO--R 5 or --R 4 --COO--R 5 , wherein R 4 denotes an optionally substituted C 2 --C 4 -alkylene radical and R 5 denotes a C 6 --C 22 -alkyl or -alkenyl radical or a cycloalkyl radical, R 1 represents the ethylene and/or 1,2-propylene radical, R 2 represents hydrogen, C 1 --C 4 -alkyl or --(R 1 --O) x-1 R 1 --R 3 , R 3 represents OH, Cl or Br, x represents an integer from 2 to 100 and n represents a number from 1 to 10, are used, especially in aqueous formulations, as emulsifying agents and dispersing agents.
Inventors
- 👤 Konrad Nonn
- 👤 Klaus Walz
- 👤 Karlheinz Wolf
- 👤 Gunther Boehmke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:40
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/0089; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4075; C08; C08G; C08G79/00; C08G79/02; C08G79/04; C09D; C09D7/00; C09D7/40; C09D7/45; C09K; C09K23/00; C09K23/14; D; D06; D06L; D06L4/00; D06L4/60; D06L4/664; D06L4/671; D06P; D06P1/00; D06P1/44; D06P1/667; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
Phosphonic acid esters of the general formula ##STR7## in which R represents a C 12 --C 22 --alkyl or -alkenyl radical, a C 7 --C 18 --aralkyl radical or a radical of the formula --R 4 --O--CO--R 5 or --R 4 --COO--R 5 , wherein R 4 denotes an optionally substituted C 2 --C 4 --alkylene radical and R 5 denotes a C 6 --C 22 --alkyl or -alkenyl radical or a cycloalkyl radical, R 1 represents the ethylene and/or 1,2-propylene radical, R 2 represents hydrogen, C 1 --C 4 --alkyl or --(R 1 --O) x-1 R 1 --R 3 , R 3 represents OH, Cl or Br, x represents an integer from 4 to 50 and n represents a number from 1 to 10.
Claim 2
Dependent Claim
125 words
Phosphonic acid esters of the general formula ##STR7## in which R represents a C 12 --C 22 --alkyl or -alkenyl radical, a C 7 --C 18 --aralkyl radical or a radical of the formula --R 4 --O--CO--R 5 or --R 4 --COO--R 5 , wherein R 4 denotes an optionally substituted C 2 --C 4 --alkylene radical and R 5 denotes a C 6 --C 22 --alkyl or -alkenyl radical or a cycloalkyl radical, R 1 represents the ethylene and/or 1,2-propylene radical, R 2 represents hydrogen, C 1 --C 4 --alkyl or --(R 1 --O) x-1 R 1 --R 3 , R 3 represents OH, Cl or Br, x represents an integer from 4 to 50 and n represents a number from 1 to 10.
References Cited (Backward Citations)
US3578731A
Cited
US3956431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-27 | 1985-01-26 | 1985-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-27 | 1989-01-26 | 1989-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-27 | 1993-01-26 | 1993-07-28 | $7700.00 | Window Closed / Lapsed |