US3965147A
Expired / Lapsed
US
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Phosphonocarboxylic acid esters
Assignee: Bayer AG
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Filing: 1974-05-06
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Granted: 1976-06-22
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Expires: 1994-05-06
Abstract
Abstract Phosphonocarboxylic acid esters of the formula ##EQU1## in which R, R 1 , R 2 , n and A have the meaning, given in the disclosure, and a process for their manufacture. The new compounds can be used as auxiliaries in dyeing and printing textile materials containing polyester fibres.
Inventors
- 👤 Udo-Winfried Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:08
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/335; C08G65/3353; C08G65/3355; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
Phosphonocarboxylic acid esters of the formula ##EQU16## in which R represents a C 8 -C 22 -alkyl radical, C 8 -C 22 -alkenyl radical or C 8 -C 12 -alkyl-phenyl radical, R 1 represents hydrogen or the ##EQU17## group, R 2 represents hydrogen or the methyl group, n represents a number from 1 to 10 and A represents hydrogen, an alkali metal ion or an ammonium ion.
Claim 2
Dependent Claim
67 words
Phosphonocarboxylic acid esters of the formula ##EQU16## in which R represents a C 8 -C 22 -alkyl radical, C 8 -C 22 -alkenyl radical or C 8 -C 12 -alkyl-phenyl radical, R 1 represents hydrogen or the ##EQU17## group, R 2 represents hydrogen or the methyl group, n represents a number from 1 to 10 and A represents hydrogen, an alkali metal ion or an ammonium ion.
Claim 3
Dependent Claim
56 words
Phosphonocarboxylic acid esters according to claim 1, characterised in that R represents a C 16 -C 22 -alkyl or C 16 -C 22 -alkenyl radical, R 1 represents hydrogen or the R-O-(CH 2 -CH 2 -O) N -OC-group, R 2 represents hydrogen, n represents a number from 1 to 4 and A represents an ammonium ion.
Claim 4
Dependent Claim
16 words
Phosphonocarboxylic acid ester according to claim 1, of the formula ##EQU18## and the corresponding ammonium salts.
Claim 5
Dependent Claim
16 words
Phosphonocarboxylic acid esters according to claim 1, of the formula ##EQU19## and the corresponding ammonium salts.
Claim 6
Dependent Claim
13 words
Phosphonocarboxylic acid esters according to claim 1, ##EQU20## and the corresponding ammonium salts.
Claim 7
Dependent Claim
18 words
Phosphonocarboxylic acid ester according to claim 1 of the formula ##EQU21## and the corresponding alkali- and ammonium salts.
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) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |