GB1454956A - Photographic film base - Google Patents

Photographic film base

Info

Publication number
GB1454956A
GB1454956A GB1080074A GB1080074A GB1454956A GB 1454956 A GB1454956 A GB 1454956A GB 1080074 A GB1080074 A GB 1080074A GB 1080074 A GB1080074 A GB 1080074A GB 1454956 A GB1454956 A GB 1454956A
Authority
GB
United Kingdom
Prior art keywords
film
naphthalate
photographic film
units
blend
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1080074A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to GB1080074A priority Critical patent/GB1454956A/en
Publication of GB1454956A publication Critical patent/GB1454956A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

1454956 Polyethylene-2,6-naphthalate films TEIJIN Ltd 11 March 1974 10800/74 Heading B5B [Also in Division G2] A film used as a base for a photographic film is formed from a substantially linear polyester of intrinsic viscosity, as measured in orthochlorophenol at 35‹ C., of 0À40 and with at least 90 mol. per cent of the structural units being ethylene-2,6-naphthalate units. The film is biaxially orientated and heat-set and has a haze of no more than 4À5%, a Youngs modulus of from 50,000 to 60,000 kg./cm.<SP>2</SP> in both the longitudinal and lateral directions. The film may be prepared from a blend of polymers, provided that at least 90 mol. per cent of the structural units in the blend are ethylene- 2,6-naphthalate units. The saturated shrinkage or saturated expansions at 180‹ C. in both longitudinal and lateral directions is no more than 0À9%.
GB1080074A 1974-03-11 1974-03-11 Photographic film base Expired GB1454956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1080074A GB1454956A (en) 1974-03-11 1974-03-11 Photographic film base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1080074A GB1454956A (en) 1974-03-11 1974-03-11 Photographic film base

Publications (1)

Publication Number Publication Date
GB1454956A true GB1454956A (en) 1976-11-10

Family

ID=9974503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1080074A Expired GB1454956A (en) 1974-03-11 1974-03-11 Photographic film base

Country Status (1)

Country Link
GB (1) GB1454956A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228601A2 (en) * 1985-12-10 1987-07-15 Diafoil Hoechst Co., Ltd Polyethylene naphthalate film for membrane switch
EP0615160A1 (en) * 1993-03-11 1994-09-14 Fuji Photo Film Co., Ltd. Silver halide photographic material
EP0674227A1 (en) * 1994-03-22 1995-09-27 Agfa-Gevaert N.V. Imaging element and method for making a printing plate according to the silver salt diffusion transfer process
US5457017A (en) * 1993-04-09 1995-10-10 Teijin Limited Base film for photographic film
US5496688A (en) * 1993-02-16 1996-03-05 Teijin Limited Base film for photographic film

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228601A2 (en) * 1985-12-10 1987-07-15 Diafoil Hoechst Co., Ltd Polyethylene naphthalate film for membrane switch
EP0228601A3 (en) * 1985-12-10 1988-08-03 Diafoil Company, Limited Polyethylene naphthalate film for membrane switch
US5496688A (en) * 1993-02-16 1996-03-05 Teijin Limited Base film for photographic film
EP0615160A1 (en) * 1993-03-11 1994-09-14 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5457017A (en) * 1993-04-09 1995-10-10 Teijin Limited Base film for photographic film
US5593819A (en) * 1993-04-09 1997-01-14 Teijin Limited Base film for photographic film
EP0674227A1 (en) * 1994-03-22 1995-09-27 Agfa-Gevaert N.V. Imaging element and method for making a printing plate according to the silver salt diffusion transfer process
EP0691578A3 (en) * 1994-03-22 1996-07-17 Agfa Gevaert Nv Imaging element and method for making a printing plate according to the silver salt diffusion transfer process

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee