US3617273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Competing color developer process and composition
Assignee: Fujifilm Holdings Corp
•
Filing: 1969-06-20
•
Granted: 1971-11-02
•
Expires: 1989-06-20
Abstract
Abstract A novel competing color-developing agent having the formula: WHEREIN X is hydrogen, alkyl, hydroxylalkyl, phenyl or halogen, and Y is a substituted or unsubstituted N, S or O containing heterocyclic ring, and process for the use thereof.
Inventors
- 👤 Atsuaki Arai
- 👤 Mitsugu Tanaka
- 👤 Haruhiko Iwano
- 👤 Isao Shimamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:13
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/14; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/38; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/20; G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3021
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
32 words
The color developer composition of claim 1, wherein said composition additionally contains a member selected from the class consisting of an alkali metal bromide, an alkali metal sulfite, and alkali metal iodide.
Claim 2
Dependent Claim
30 words
The color developer composition of claim 1, wherein said coupler is selected from the class consisting of phenolic couplers, naphtholic couplers, pyrazolone couplers, coumarone couplers and the open-chain ketomethylene couplers.
Claim 3
Dependent Claim
26 words
The color developer composition of claim 1, wherein said primary aromatic amino developing agent is selected from the class consisting of a 4-aminophenol and a p-phenylenediamine.
Claim 4
Dependent Claim
60 words
The color developer composition of claim 1, wherein said water-soluble competing developing agent is selected from the class consisting of Beta -(p-hydroxyanilinomethyl)-pyridine Alpha -(p-hydroxyanilinomethyl)pyridine, gamma -(p-hydroxyanilinomethyl)pyridine, Alpha -(p-hydroxyanilinomethyl)furan, Beta -(3-methyl-4-hydroxyanilinomethyl)pyridine, Beta -(3-phenyl-4-hydroxyanilinomethyl)furan, Alpha -(p-hydroxyanilinomethyl) thiophene, 2-(p-hydroxyanilinomethyl)-5-methylthiophene, 1-benzyl-3-(p-hydroxyanilinomethyl)indole, Alpha -(3chloro-4-hydroxyanilinomethyl)furan and Alpha -(3-methyl-4-hydroxyanilinomethyl)furan said competing developing agent being present in an amount of 0.01 to 5.0 g./liter of the developer composition.
Claim 5
Dependent Claim
59 words
In a process for the color reversal development of a multilayer, multicolor photographic element, utilizing a plurality of color development baths each containing a color developing agent, after exposure to light through an original image, the improvement which comprises the use, in at least one of said color developing baths, of a water-soluble competing developing agent having the formula:
Claim 6
Dependent Claim
27 words
The color reversal development process of claim 6, wherein one of said baths is a cyan developer, and contains Beta -(p-hydroxyanilinomethyl) pyridine as the competing developing agent.
Claim 7
Dependent Claim
26 words
The color reversal development process of claim 6, wherein one of said baths is a yellow developer, and contains Beta -(p-hydroxyanilinomethyl)pyridine as the competing developing agent.
Claim 8
Dependent Claim
26 words
The color reversal development process of claim 6, wherein one of said baths is a magenta developer, and contains Beta -(p-hydroxyanilinomethyl)pyridine as a competing developing agent.
Claim 9
Dependent Claim
26 words
A composition for preparing a color developer solution comprising (1) a primary aromatic amino developing agent, and (2) a water-soluble competinG developing agent having the formula:
Claim 10
Dependent Claim
38 words
The composition of claim 10 wherein said competing developing agent is selected from the class consisting of Beta -(p-hydroxyanilinomethyl)pyridine, Alpha -(p-hydroxyanilinomethyl)pyridine, gamma -(p-hydroxyanilinomethyl)pyridine, Alpha -(p-hydroxyanilinomethyl)furan, Beta -(3-methyl-4-hydroxyanilinomethyl)pyridine, Beta -(3-phenyl-4-hydroxyanilinomethyl)furan, Alpha -(p-hydroxyanilinomethyl)thiophene, 2-(p-hydroxyanilinomethyl)-5-methylthiophene, 1-benzyl-3-(p-hydroxyanilinomethyl)indole, Alpha -(3-chloro-4-hydroxyanilinomethyl)furan and Alpha -(3-methyl-4-hydroxyanilinomethyl)furan.
References Cited (Backward Citations)
US3141771A
Cited
US3300305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |