US4271253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for stabilizing organic substrate materials including photographic dye images to light and photographic material so stabilized
Assignee: Fujifilm Holdings Corp
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Filing: 1980-05-15
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Granted: 1981-06-02
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Expires: 2000-05-15
Abstract
Abstract A method of stabilizing an organic substrate material such as a photographic dye against the action of light having an absorption maximum between about 300 nm and about 800 nm in wavelength by making co-exist with the organic substrate material at least one compound represented by the formula (I) defined in the specification is disclosed.
Inventors
- 👤 Hiroshi Hara
- 👤 Kotaro Nakamura
- 👤 Yoshiaki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:38
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; C; C07; C07F; C07F15/00; C07F15/0006; C07F15/0013; C07F15/04; C07F15/045; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/39284; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
A diffusion transfer color photographic material comprising a photosensitive element and an image receiving element said image receiving element comprising a support having thereon a mordanting layer containing a complex of the formula I ##STR12## wherein M represents Ni, Pd or Pt; R 1 and R 2 , which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group, an arylsulfonyl group or a carbamoyl group.
Claim 2
Dependent Claim
85 words
A diffusion transfer color photographic material comprising a photosensitive element and an image receiving element said image receiving element comprising a support having thereon a mordanting layer containing a complex of the formula I ##STR12## wherein M represents Ni, Pd or Pt; R 1 and R 2 , which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group, an arylsulfonyl group or a carbamoyl group.
Claim 3
Dependent Claim
17 words
The diffusion transfer color photographic material of claim 1 wherein in said formula (I), M is Ni.
References Cited (Backward Citations)
US4050938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-01 | 1984-12-01 | 1985-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-01 | 1988-12-01 | 1989-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-01 | 1992-12-01 | 1993-06-02 | $7700.00 | Window Closed / Lapsed |