US4228235A
Expired / Lapsed
US
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Color photographic material
Assignee: Konica Minolta Inc
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Filing: 1979-01-08
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Granted: 1980-10-14
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Expires: 1999-01-08
Abstract
Abstract A color photographic material having stabilized dye images is described which has a compound with the formula: ##STR1## where R and R 2 individually represent an alkyl group, R represents an n-valent organic group and n is an integer of from 1 to 6.
Inventors
- 👤 Kyohei Okonogi
- 👤 Mikio Sato
- 👤 Katsuo Mogaki
- 👤 Takashi Sasaki
- 👤 Takashi Uchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:33
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/39232
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
A color photographic material comprising a support and a light sensitive silver halide emulsion layer thereon, which material comprises a compound represented by the folllowing formula: ##STR10## where R 1 and R 2 individually represent an alkyl group, R represents a n-valent organic group selected from the group consisting of an aliphatic, cycloaliphatic and aromatic group and n is an integer from 1 to 6.
Claim 2
Dependent Claim
65 words
A color photographic material comprising a support and a light sensitive silver halide emulsion layer thereon, which material comprises a compound represented by the folllowing formula: ##STR10## where R 1 and R 2 individually represent an alkyl group, R represents a n-valent organic group selected from the group consisting of an aliphatic, cycloaliphatic and aromatic group and n is an integer from 1 to 6.
Claim 3
Dependent Claim
18 words
A color photographic material as defined in claim 1, wherein n is an integer from 1 to 4.
Claim 4
Dependent Claim
67 words
A color photographic material as defined in claim 2, wherein said compound represented by the general formula (I) is a compound represented by the following general formula: ##STR11## where R 1 and R 2 individually represent an alkyl group, R' represents an alkyl or aryl group, or ##STR12## where R 1 and R 2 individually represent an alkyl group and R" represents an alkylene or arylene radical.
Claim 5
Dependent Claim
46 words
A color photographic material as defined in claim 3, wherein said compound represented by the general formula (I) is a compound represented by the following general formula: ##STR13## where R 1 and R 2 individually represent an alkyl group, R' represents an alkyl or aryl group.
Claim 6
Dependent Claim
15 words
A color photographic material as defined in claim 4, wherein R' represents an aryl group.
Claim 7
Dependent Claim
15 words
A color photographic material as defined in claim 5 wherein R' represents a phenyl group.
Claim 8
Dependent Claim
63 words
A color photographic material as defined in claim 1 wherein the n-valent group is selected from the group consisting of an alkyl radical having less than 20 carbon atoms, an unsaturated hydrocarbon radical, an alkylene radical, a glyceryl radical, a diglyceryl radical, a pentaerithrityl radical, a dipentaerithrityl radical, a C 3 - to C 6 - cycloaliphatic hydrogcarbon radical and an aryl radical.
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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |