US5378592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic material
Assignee: Fujifilm Corp
•
Filing: 1994-02-02
•
Granted: 1995-01-03
•
Expires: 2014-02-02
Abstract
Abstract A photographic material comprises a support of a polyester film, a first subbing layer provided thereon, a second subbing layer comprising gelatin provided on the first subbing layer and a photographic layer provided on the second subbing layer. The first subbing layer is a layer of polyurethane latex cured with an epoxy compound or a dichloro-s-triazine derivative, otherwise the first subbing layer comprises a polymer which has breaking elongation of not more than 300% or stress at 100% elongation of not less than 130 kg/cm2.
Inventors
- 👤 Ken Nakanishi
- 👤 Tadashi Takehana
- 👤 Hiroyuki Tamaki
- 👤 Sumio Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:09
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; G03C1/005; G03C1/06; G03C1/30; G03C2200/00; G03C2200/33
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
68 words
A photographic material comprising a support of a polyester film, a first subbing layer provided thereon, a second subbing layer provided on the first subbing layer and a photographic layer provided on the second subbing layer, wherein the first subbing layer is a layer of polyurethane latex cured with an epoxy compound or a dichloro-s-triazine derivative, and the second subbing layer is a hydrophilic colloid layer comprising gelatin.
Claim 2
Dependent Claim
68 words
A photographic material comprising a support of a polyester film, a first subbing layer provided thereon, a second subbing layer provided on the first subbing layer and a photographic layer provided on the second subbing layer, wherein the first subbing layer is a layer of polyurethane latex cured with an epoxy compound or a dichloro-s-triazine derivative, and the second subbing layer is a hydrophilic colloid layer comprising gelatin.
Claim 3
Dependent Claim
33 words
The photographic material as defined in claim 1, wherein the polyurethane latex has breaking elongation of not more than 300% or stress at 100% elongation of not less than 130 kg/cm 2 .
Claim 4
Dependent Claim
50 words
The photographic material as defined in claim 1, wherein the polyurethane latex is a latex of polyurethane derived from an iscocyanate compound and at least one polyol selected from the group consisting of polyol containing a polycarbonate unit, polyol of an aliphatic polyester and polyol containing a poly(ethylene phthalate) unit.
Claim 5
Dependent Claim
20 words
The photographic material as defined in claim 1, wherein the epoxy compound has epoxy groups of not less than four.
References Cited (Backward Citations)
US3791857A
Cited
US5194347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-02 | 1998-07-04 | 1999-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-02 | 2002-07-04 | 2003-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-02 | 2006-07-04 | 2007-01-03 | $7700.00 | Window Closed / Lapsed |