US3984432A
Expired / Lapsed
US
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Color photographic recording material
Assignee: Ilford Imaging Switzerland GmbH
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Filing: 1974-02-27
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Granted: 1976-10-05
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Expires: 1994-02-27
Abstract
Abstract The present invention relates to new compounds having an active methylene group or phenolic hydroxyl group and therefore capable of being used as photographic color couplers. The new compounds contain at least one radical of a phosphoric acid diester, phosphonic acid diester, phosphoric acid diamide, phosphonic acid diamide, phosphoric acid ester-amide or phosphonic acid ester-amide.
Inventors
- 👤 Bernhard Piller
- 👤 Paul Tschopp
- 👤 Thomas Stauner
- 👤 Walter Heierli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:06
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/3212; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/28; C07F9/38; C07F9/40; C07F9/44; C07F9/50; C07F9/53; C07F9/5333; C07F9/547; C07F9/553; C07F9/576; C07F9/58; C07F9/645; C07F9/6503; C07F9/65031
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
147 words
A compound which corresponds to the formula ##EQU21## wherein Q 1 denotes a radical hydrogen, chlorine, ##SPC9## --O--CO--CH 3 , --O--SO 2 --CH 3 and ##SPC10## and ##EQU22## D 1 denotes an unsubstituted benzene radical or a benzene radical which is substituted by at least one of the substituents halogen, nitrile, lower alkyl, lower alkoxy, lower alkylsulphonyl or carboxylic acid acylamino with 1 to 28 carbon atoms, T 1 denotes a carboxylic acid acylamino group, a phenylureido group, a phenylamino group which is unsubstituted or is substituted by at least one of the substituents halogen, lower alkyl, lower alkoxy or acylamino with 1 to 28 carbon atoms, R 1 denotes an alkyl group with 2 to 18 carbon atoms, m denotes one of the numbers 1 and 2, p denotes one of the numbers 1, 2 and 3 and r denotes an integer of at most 18.
Claim 2
Dependent Claim
147 words
A compound which corresponds to the formula ##EQU21## wherein Q 1 denotes a radical hydrogen, chlorine, ##SPC9## --O--CO--CH 3 , --O--SO 2 --CH 3 and ##SPC10## and ##EQU22## D 1 denotes an unsubstituted benzene radical or a benzene radical which is substituted by at least one of the substituents halogen, nitrile, lower alkyl, lower alkoxy, lower alkylsulphonyl or carboxylic acid acylamino with 1 to 28 carbon atoms, T 1 denotes a carboxylic acid acylamino group, a phenylureido group, a phenylamino group which is unsubstituted or is substituted by at least one of the substituents halogen, lower alkyl, lower alkoxy or acylamino with 1 to 28 carbon atoms, R 1 denotes an alkyl group with 2 to 18 carbon atoms, m denotes one of the numbers 1 and 2, p denotes one of the numbers 1, 2 and 3 and r denotes an integer of at most 18.
Claim 3
Dependent Claim
9 words
A compound of claim 1 having the formula ##SPC11##
Claim 4
Dependent Claim
75 words
A compound according to claim 1 which corresponds to the formula ##SPC12## wherein D 2 denotes a benzene radical which is optionally substituted further by at least one chlorine atom, methyl group or methoxy group and/or by a nitrile group, R 2 denotes an alkyl group with 2 to 8 carbon atoms, k, m and s each denote one of the numbers 1 and 2 and t denotes one of the numbers 3 and 5.
Claim 5
Dependent Claim
63 words
A compound according to claim 3 which corresponds to the formula ##SPC13## wherein R 3 denotes a n-butyl or 2-ethylhexyl group, Y denotes a chlorine atom, a methyl group or methoxy group, Y' denotes a chlorine atom or a methyl group, k and s each denote one of the numbers 1 and 2 and t denotes one of the numbers 3 and 5.
Claim 6
Dependent Claim
37 words
A compound according to claim 1 which corresponds to the formula ##SPC14## wherein D 2 , R 2 , m and t have the indicated meaning and V 1 denotes a hydrogen atom or a chlorine atom.
Claim 7
Dependent Claim
25 words
A compound according to claim 5 which corresponds to the formula ##SPC15## wherein Y, Y', R 3 , k and t have the indicated meaning.
References Cited (Backward Citations)
US3582322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |