← Back to Patent Explorer
US5326689A Expired / Lapsed US ⏱️ 0.0 years remaining

Silver halide photographic material

Assignee: Fujifilm Holdings Corp
•
Filing: 1993-08-18
•
Granted: 1994-07-05
•
Expires: 2013-08-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A photographic material which exhibits excellent dynamic properties and little curl is provided. The silver halide photographic material comprises at least one light-sensitive layer on a polyester support, wherein the polyester support is a polyester support having a glass transition temperature of 90° C. to 200 ° C. and is subject to glow discharge treatment. The polyester support is preferably subjected to post heat treatment at a temperature ranging from 50 ° C. to lower than the glass transition temperature of said polyester support after the glow discharge treatment.

Inventors

  • 👤 Masahiko Murayama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 12:51
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/795; G03C1/7954; G03C1/81; G03C1/85; G03C1/853; Y; Y10; Y10S; Y10S422/00; Y10S422/907; Y10S430/00; Y10S430/131; Y10S430/14

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 54 words
A silver halide photographic material comprising at least one light-sensitive layer on a polyester support, wherein said polyester support has a glass transition temperature of 90° C. to 200° C. and has been subjected to glow discharge treatment; wherein said polyester support comprises a polyester containing naphthalenedicarboxylic acid and ethylene glycol as main components.
Claim 2
Dependent Claim 54 words
A silver halide photographic material comprising at least one light-sensitive layer on a polyester support, wherein said polyester support has a glass transition temperature of 90° C. to 200° C. and has been subjected to glow discharge treatment; wherein said polyester support comprises a polyester containing naphthalenedicarboxylic acid and ethylene glycol as main components.
Claim 3
Dependent Claim 42 words
The silver halide photographic material according to claim 1, wherein said polyester support is subjected to heat treatment (1) at a temperature ranging from 50° C. to lower than the glass transition temperature of said polyester support before the glow discharge treatment.
Claim 4
Dependent Claim 29 words
The silver halide photographic material according to claim 1, wherein the water content of the gas composition in the atmosphere for glow discharge treatment is not less than 10%.
Claim 5
Dependent Claim 39 words
The silver halide photographic material according to claim 3, wherein said polyester support is subject to the glow discharge treatment after being preheated at a temperature ranging from 50° C. to the glass transition temperature of said polyester support.
Claim 6
Dependent Claim 39 words
The silver halide photographic material according to claim 2, wherein said polyester support is subjected to heat treatment (2) at a temperature of not less than the glass transition temperature of said polyester support before said heat treatment (1).
Claim 7
Dependent Claim 33 words
The silver halide photographic material according to claim 1, wherein the molar proportion of naphthalenedicarboxylic acid to the amount of dicarboxylic acid other than naphthalenedicarboxylic contained in the polyester is 0.3:0.7 to 1.0:0.
Claim 8
Dependent Claim 75 words
The silver halide photographic material according to claim 1, wherein said photographic material has at least one electrically conductive layer on at least one side thereof and the electrically conductive material constituting said electrically conductive layer comprises at least one selected from the group consisting of metal oxides comprising Zn, Ti, Sn, Al, In, Si, Mg, Ba, Mo, W, and V as main components and having a volume resistivity of 10 7 Ω/cm or less.
Claim 9
Dependent Claim 33 words
The silver halide photographic material according to claim 1, wherein said photographic material is wound around a spool having an outer diameter of 5 mm to 11 mm in the form of roll.
Claim 10
Dependent Claim 15 words
The silver halide photographic material according to claim 1, wherein said polyester support is polyethylene-2,6-naphthalenedicarboxylate.

References Cited (Backward Citations)

US3462335A Cited
US3761299A Cited
US4072769A Cited
US4141735A Cited
US5238801A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-07-04 1998-01-03 1998-07-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-07-04 2002-01-03 2002-07-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-07-04 2006-01-03 2006-07-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag