JPS5448872A - Composite film of poly-p-phenylene terephthalamide and its production - Google Patents
Composite film of poly-p-phenylene terephthalamide and its productionInfo
- Publication number
- JPS5448872A JPS5448872A JP11471177A JP11471177A JPS5448872A JP S5448872 A JPS5448872 A JP S5448872A JP 11471177 A JP11471177 A JP 11471177A JP 11471177 A JP11471177 A JP 11471177A JP S5448872 A JPS5448872 A JP S5448872A
- Authority
- JP
- Japan
- Prior art keywords
- phenylene terephthalamide
- dope
- laminated
- poly
- optically
- 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)
- Laminated Bodies (AREA)
- Insulating Bodies (AREA)
Abstract
PURPOSE: A coagulated layer from an optically anistropic dope of poly-p-phenylene terephthalamide is laminated with another coagulated layer from an optically isotropic dope to produce title heat-resistat composite film with high longitudinally tearing strength, excellent electric properties and high transparency.
CONSTITUTION: (A) an optically anistropic dope consisting of an aromatic polyamide with carbon ring that contains 85 mol% or more p-phenylene terephthalamide as recurring structural unit and (B) another optically isotropic unit are laminated into a plurality of thin layers and coagulated. The laminated film is washed, dried, when necessary, heat treated to produce the objective film.
USE: Electrical insulation for heat-resistnat wires and cables
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11471177A JPS6036943B2 (en) | 1977-09-26 | 1977-09-26 | Polyparaphenylene terephthalamide composite film and its manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11471177A JPS6036943B2 (en) | 1977-09-26 | 1977-09-26 | Polyparaphenylene terephthalamide composite film and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5448872A true JPS5448872A (en) | 1979-04-17 |
JPS6036943B2 JPS6036943B2 (en) | 1985-08-23 |
Family
ID=14644702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11471177A Expired JPS6036943B2 (en) | 1977-09-26 | 1977-09-26 | Polyparaphenylene terephthalamide composite film and its manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6036943B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4503791A (en) * | 1984-04-16 | 1985-03-12 | The Singer Company | Cam controlled gate spring for chain stitch sewing machine |
-
1977
- 1977-09-26 JP JP11471177A patent/JPS6036943B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4503791A (en) * | 1984-04-16 | 1985-03-12 | The Singer Company | Cam controlled gate spring for chain stitch sewing machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6036943B2 (en) | 1985-08-23 |
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