US4954430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic element with polyester base
Assignee: Fujifilm Corp
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Filing: 1990-01-19
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Granted: 1990-09-04
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Expires: 2010-01-19
Abstract
Abstract A silver halide photographic material is disclosed, having at least one hydrophilic colloid layer comprising a polyester support and having a polymer latex on at least one side of said polyester support, wherein both surfaces of said support are coated with a polymer layer comprising a copolymer containing from 50 to 99.5% by weight vinylidene chloride and wherein both polymer layers have a thickness of at least 0.3 μm. A method for treating the silver halide photographic material is also disclosed.
Inventors
- 👤 Kunio Ishigaki
- 👤 Takashi Naoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
129 words
A silver halide element comprising, in sequence: (i) a biaxially oriented polyester support having a thickness of 40 to 200 μm. (ii) a polymer layer on both surfaces of said polyester support, and (iii) at least one hydrophilic colloid layer containing from 0.01 to 1.0 parts by weight of a polymer latex per 1.0 part by weight of a binder in said hydrophilic colloid layer, on at least one side of said polyester support, wherein at least one of said hydrophilic colloid layers is a silver halide emulsion layer, and wherein said polymer layer consists essentially of a copolymer containing from 50-99.5% by weight vinylidene chloride and 50 0.5% by weight of at least one comonomer, and wherein each polymer layer has a thickness of at least 0.3 μm.
Claim 2
Dependent Claim
129 words
A silver halide element comprising, in sequence: (i) a biaxially oriented polyester support having a thickness of 40 to 200 μm. (ii) a polymer layer on both surfaces of said polyester support, and (iii) at least one hydrophilic colloid layer containing from 0.01 to 1.0 parts by weight of a polymer latex per 1.0 part by weight of a binder in said hydrophilic colloid layer, on at least one side of said polyester support, wherein at least one of said hydrophilic colloid layers is a silver halide emulsion layer, and wherein said polymer layer consists essentially of a copolymer containing from 50-99.5% by weight vinylidene chloride and 50 0.5% by weight of at least one comonomer, and wherein each polymer layer has a thickness of at least 0.3 μm.
Claim 3
Dependent Claim
45 words
The silver halide photographic element as claimed in claim 1, wherein the silver halide photographic element has been wound around a core under such conditions that the surface temperature of the coated layer of the photographic element being wound is from 40° to 50° C.
Claim 4
Dependent Claim
35 words
The silver halide photographic element as claimed in claim 2, wherein said wound photographic element has been allowed to stand for at least 8 hours in a packed state in a heat insulating packaging material.
Claim 5
Dependent Claim
23 words
A silver halide photographic element as claimed in claim 1, wherein the copolymer contains from 70 to 99.5% by weight of vinylidene chloride.
Claim 6
Dependent Claim
25 words
A silver halide photographic element as claimed in claim 1, wherein the surface of the polymer support has been subjected to a glow discharge treatment.
Claim 7
Dependent Claim
22 words
A silver halide photographic element as claimed in claim 1, wherein a hydrazine derivative is contained in a silver halide photographic element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |