CA2297311A1 - Base film for photographic film - Google Patents
Base film for photographic film Download PDFInfo
- Publication number
- CA2297311A1 CA2297311A1 CA002297311A CA2297311A CA2297311A1 CA 2297311 A1 CA2297311 A1 CA 2297311A1 CA 002297311 A CA002297311 A CA 002297311A CA 2297311 A CA2297311 A CA 2297311A CA 2297311 A1 CA2297311 A1 CA 2297311A1
- Authority
- CA
- Canada
- Prior art keywords
- film
- less
- layer
- thickness
- base film
- 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.)
- Granted
Links
- 239000010419 fine particle Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
Landscapes
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Disclosed is a base film for a photographic film, which: (a) has a refractive index (nz) in the thickness direction of at least 1.498; (b) has a haze value of 2.0% or less; (c) has a tan.delta. value in one direction at 80°C by tensile viscoelasticity at 0.05 Hz, of 0.09 or less; (d) has an anti-curling ratio at 70°C of at least 45%; (e) has a thickness in the range of from 40 to 120 µm; and (f) is formed of a laminated film formed of a first layer of polyethylene-2,6-naphthalenedicarboxylate which may contain less than 0.003% by weight of inert fine particles having an average particle diameter of 0.01 to 1.5 µm and a second layer of polyethylene-2,6-naphthalenedicarboxylate containing 0.003 to 0.5% by weight of inert fine particles having an average particle diameter of 0.01 to 1.5 µm, the second layer having a thickness of 10 µm or less. This base film has various performances such as anti-curling properties, transparency and lubricity, suitable for use in a photographic film.
Applications Claiming Priority (25)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5-026763 | 1993-02-16 | ||
| JP2676393 | 1993-02-16 | ||
| JP5-029066 | 1993-02-18 | ||
| JP2906693 | 1993-02-18 | ||
| JP3052093 | 1993-02-19 | ||
| JP5-030520 | 1993-02-19 | ||
| JP5-039808 | 1993-03-01 | ||
| JP5-039807 | 1993-03-01 | ||
| JP3980793 | 1993-03-01 | ||
| JP3980693 | 1993-03-01 | ||
| JP3980993 | 1993-03-01 | ||
| JP5-039806 | 1993-03-01 | ||
| JP3980893 | 1993-03-01 | ||
| JP5-039809 | 1993-03-01 | ||
| JP5-046482 | 1993-03-08 | ||
| JP4648293 | 1993-03-08 | ||
| JP5-071753 | 1993-03-30 | ||
| JP7175393 | 1993-03-30 | ||
| JP7690793 | 1993-04-02 | ||
| JP5-076906 | 1993-04-02 | ||
| JP7690693 | 1993-04-02 | ||
| JP5-076907 | 1993-04-02 | ||
| JP8067793 | 1993-04-07 | ||
| JP5-080677 | 1993-04-07 | ||
| CA002118252A CA2118252C (en) | 1993-02-16 | 1994-02-07 | Base film for photographic film |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002118252A Division CA2118252C (en) | 1993-02-16 | 1994-02-07 | Base film for photographic film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2297311A1 true CA2297311A1 (en) | 1994-08-17 |
| CA2297311C CA2297311C (en) | 2002-11-05 |
Family
ID=31982860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002297311A Expired - Fee Related CA2297311C (en) | 1993-02-16 | 1994-02-07 | Base film for photographic film |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2297311C (en) |
-
1994
- 1994-02-07 CA CA002297311A patent/CA2297311C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2297311C (en) | 2002-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0974615B1 (en) | Aliphatic polyester film and gas barrier film | |
| KR100932873B1 (en) | Optical Adhesive Polyester Film | |
| US6663957B1 (en) | Adhesive transparent resin and a composite including the same | |
| US4828918A (en) | Transparent composite polyester films capable of being used in particular for producing high-gloss metallized films | |
| EP2141517A2 (en) | Optical film coating | |
| KR880014131A (en) | Hard transparent film and its formation method | |
| JPH10501008A (en) | Polymer article having good hydrophilicity and method for producing the same | |
| CA2071096A1 (en) | Plastic lens | |
| KR930002083A (en) | Roughening film and manufacturing method thereof | |
| EP0074750B1 (en) | Polyester film for magnetic recording medium and magnetic recording medium made therewith | |
| KR950011118A (en) | Laminated Polyester Film for Metal Plate Bonding | |
| KR850001246A (en) | Filler-containing polyester film drawn biaxially | |
| JP5200343B2 (en) | White polyester reflective film for LCD backlight | |
| MY114519A (en) | Metallized films and capacitors containing the same | |
| KR950703602A (en) | Molded bodies made of polyester containing covalent-bonded oxide particles | |
| CA2297311A1 (en) | Base film for photographic film | |
| KR920702393A (en) | Thermoplastic Polyester Compositions and Films Composed therefrom | |
| CA2182143A1 (en) | Polyester composition and film | |
| EP0823660A3 (en) | Photoresist layer supporting polyester film and photoresist film laminate | |
| CA2155508A1 (en) | Laminated base film for photographic film | |
| AU661428B2 (en) | Base film for photographic film | |
| KR970059210A (en) | Biaxially Oriented Laminated Polyester Film | |
| EP1033244A3 (en) | Biaxially oriented laminate polyester film | |
| KR950003357A (en) | Polyester film containing glass spheres and calcined clay | |
| CA2174546A1 (en) | Coating composition containing optically-variable pigment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |