JPS5764516A - Smothened polyester film - Google Patents
Smothened polyester filmInfo
- Publication number
- JPS5764516A JPS5764516A JP55139252A JP13925280A JPS5764516A JP S5764516 A JPS5764516 A JP S5764516A JP 55139252 A JP55139252 A JP 55139252A JP 13925280 A JP13925280 A JP 13925280A JP S5764516 A JPS5764516 A JP S5764516A
- Authority
- JP
- Japan
- Prior art keywords
- film
- polyester film
- polyester
- indicates
- density
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE:To provide the subject polyester film improved in movability and crack resistance by causing the film to contain a surface coarsening substance and a smoothening agent to set the surface projection and density of the film in specific ranges. CONSTITUTION:To a polyester (such as polyethylene phthalate) blended with a surface coarsening substance inorganic fine particles of hydrated aluminum silicate, silica and the like), is added 0.01-5wt% of sorbitan ester (preferably triester) as a smoothening agent, to form a smoothened polyester film satisfying a relationship shown by the formula, wherein H indicates the number of projections having a height of above 0.54mu formed on the surface having a height above 1mm.<2> of the film, and p indicates the film density in terms of g/cm<2>.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55139252A JPS5764516A (en) | 1980-10-07 | 1980-10-07 | Smothened polyester film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55139252A JPS5764516A (en) | 1980-10-07 | 1980-10-07 | Smothened polyester film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5764516A true JPS5764516A (en) | 1982-04-19 |
JPS634571B2 JPS634571B2 (en) | 1988-01-29 |
Family
ID=15240978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55139252A Granted JPS5764516A (en) | 1980-10-07 | 1980-10-07 | Smothened polyester film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5764516A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58206664A (en) * | 1982-05-28 | 1983-12-01 | Teijin Ltd | Biaxially oriented polyester film |
JPS5945348A (en) * | 1982-09-09 | 1984-03-14 | Teijin Ltd | Polyethylene terephthalate film for metallic thin film magnetic recording medium |
US4617164A (en) * | 1983-01-18 | 1986-10-14 | Diafoil Company, Limited | Process for stretching polyester films |
US4876137A (en) * | 1985-12-17 | 1989-10-24 | Diafoil Company, Limited | Polyethylene naphthalate film for high-density magnetic recording media of floppy disk |
JPH0620754U (en) * | 1992-08-24 | 1994-03-18 | オリエンタル建設株式会社 | Recessed Mold Formwork for Connecting PC Girder Horizontal Girders |
JP2016074093A (en) * | 2014-10-02 | 2016-05-12 | 信越ポリマー株式会社 | Method for producing amorphous thermoplastic resin film |
-
1980
- 1980-10-07 JP JP55139252A patent/JPS5764516A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58206664A (en) * | 1982-05-28 | 1983-12-01 | Teijin Ltd | Biaxially oriented polyester film |
JPS5945348A (en) * | 1982-09-09 | 1984-03-14 | Teijin Ltd | Polyethylene terephthalate film for metallic thin film magnetic recording medium |
JPH0149173B2 (en) * | 1982-09-09 | 1989-10-23 | Teijin Ltd | |
US4617164A (en) * | 1983-01-18 | 1986-10-14 | Diafoil Company, Limited | Process for stretching polyester films |
US4876137A (en) * | 1985-12-17 | 1989-10-24 | Diafoil Company, Limited | Polyethylene naphthalate film for high-density magnetic recording media of floppy disk |
JPH0620754U (en) * | 1992-08-24 | 1994-03-18 | オリエンタル建設株式会社 | Recessed Mold Formwork for Connecting PC Girder Horizontal Girders |
JP2016074093A (en) * | 2014-10-02 | 2016-05-12 | 信越ポリマー株式会社 | Method for producing amorphous thermoplastic resin film |
Also Published As
Publication number | Publication date |
---|---|
JPS634571B2 (en) | 1988-01-29 |
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