JPS54148832A - Delustered polyester thin film and its production - Google Patents
Delustered polyester thin film and its productionInfo
- Publication number
- JPS54148832A JPS54148832A JP5653578A JP5653578A JPS54148832A JP S54148832 A JPS54148832 A JP S54148832A JP 5653578 A JP5653578 A JP 5653578A JP 5653578 A JP5653578 A JP 5653578A JP S54148832 A JPS54148832 A JP S54148832A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- mol
- oligomers
- ester
- titanium oxide
- 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
Abstract
PURPOSE: A polyester including titanium oxide that contains a specific amount of P is melt formed to produce delustered polyester thin films which reduce the damage of equipment used in processing.
CONSTITUTION: Difunctional carboxylic acids containing more than 75 mol% of terephthalic acid or their ester-forming derivatives, diols containing more than 75 mol% of ethylene glycol or their ester-forming derivatives that include a fine powder of titanium oxide containing more than 0.25 wt% of P (calculated as P2O5) as a deluster in such an amount that the content becomes 0.01W3.0 wt% in polyester are heated to effect the reaction and form diol esters of difunctional carboxylic acids and/or their oligomers. Then, these esters or oligomers are subjected to polycondensation reaction under heating and reduced pressure to give a polyester containing more than 75 mol% of ehylene terephthalate as recurring structural units, which is then melt formed into thin films of 1W100μm thickness.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5653578A JPS54148832A (en) | 1978-05-15 | 1978-05-15 | Delustered polyester thin film and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5653578A JPS54148832A (en) | 1978-05-15 | 1978-05-15 | Delustered polyester thin film and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54148832A true JPS54148832A (en) | 1979-11-21 |
JPS6229454B2 JPS6229454B2 (en) | 1987-06-26 |
Family
ID=13029775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5653578A Granted JPS54148832A (en) | 1978-05-15 | 1978-05-15 | Delustered polyester thin film and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54148832A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57205824A (en) * | 1981-06-11 | 1982-12-17 | Teijin Ltd | Magnetic recording medium |
JPS59178224A (en) * | 1983-03-30 | 1984-10-09 | Teijin Ltd | Stretched polyester film |
JPS59179555A (en) * | 1983-03-30 | 1984-10-12 | Teijin Ltd | Biaxially stretched polyester film |
-
1978
- 1978-05-15 JP JP5653578A patent/JPS54148832A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57205824A (en) * | 1981-06-11 | 1982-12-17 | Teijin Ltd | Magnetic recording medium |
JPS6223367B2 (en) * | 1981-06-11 | 1987-05-22 | Teijin Ltd | |
JPS59178224A (en) * | 1983-03-30 | 1984-10-09 | Teijin Ltd | Stretched polyester film |
JPS59179555A (en) * | 1983-03-30 | 1984-10-12 | Teijin Ltd | Biaxially stretched polyester film |
JPH0136491B2 (en) * | 1983-03-30 | 1989-08-01 | Teijin Ltd | |
JPH0141170B2 (en) * | 1983-03-30 | 1989-09-04 | Teijin Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6229454B2 (en) | 1987-06-26 |
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