GB1454956A - Photographic film base - Google Patents
Photographic film baseInfo
- 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
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%.
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)
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 |
-
1974
- 1974-03-11 GB GB1080074A patent/GB1454956A/en not_active Expired
Cited By (8)
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 |