JPS5624431A - Treatment for improving polytetrafluoroethylene film - Google Patents
Treatment for improving polytetrafluoroethylene filmInfo
- Publication number
- JPS5624431A JPS5624431A JP10016379A JP10016379A JPS5624431A JP S5624431 A JPS5624431 A JP S5624431A JP 10016379 A JP10016379 A JP 10016379A JP 10016379 A JP10016379 A JP 10016379A JP S5624431 A JPS5624431 A JP S5624431A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- polytetrafluoroethylene film
- film
- heating
- during
- 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: To prepare an ultra-thin polytetrafluoroethylene film having excellent electrical and mechanical properties and surface state, economically, by heating and softening a polytetrafluoroethylene film, and during or after the softening treatment, drawing the film at a sepcific high temperature.
CONSTITUTION: A polytetrafluoroethylene film is softened by heating at 327W 450°C, pref. 340W400°C, and during or after the treatment, drawn at 150W400°C at a draw ratio of ≥1.1. When the drawing temperature is ≥250°C, the resulting film is clear and has improved properties.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10016379A JPS5624431A (en) | 1979-08-08 | 1979-08-08 | Treatment for improving polytetrafluoroethylene film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10016379A JPS5624431A (en) | 1979-08-08 | 1979-08-08 | Treatment for improving polytetrafluoroethylene film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5624431A true JPS5624431A (en) | 1981-03-09 |
JPS5735091B2 JPS5735091B2 (en) | 1982-07-27 |
Family
ID=14266639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10016379A Granted JPS5624431A (en) | 1979-08-08 | 1979-08-08 | Treatment for improving polytetrafluoroethylene film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624431A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60179236A (en) * | 1984-02-27 | 1985-09-13 | Nippon Valqua Ind Ltd | Manufacture of tetrafluoroethylene resin porous material |
US7497350B2 (en) | 2002-04-30 | 2009-03-03 | Daiwa Can Company | Opening curled part of metal container and method of forming the opening curled part |
JP2011183814A (en) * | 2004-04-23 | 2011-09-22 | Gore Enterprise Holdings Inc | Fluoropolymer barrier material |
CN111941868A (en) * | 2020-07-10 | 2020-11-17 | 青岛大学 | Full-automatic PTFE film/fiber stretching sintering machine and stretching sintering method |
CN112789150A (en) * | 2018-10-04 | 2021-05-11 | 日东电工株式会社 | Heat-resistant release sheet and thermocompression bonding method |
WO2021200409A1 (en) * | 2020-04-02 | 2021-10-07 | 日東電工株式会社 | Heat-resistant release sheet and method for carrying out step involving heating and melting of resin |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943591A (en) * | 1982-09-03 | 1984-03-10 | 松下電器産業株式会社 | Method of mounting metal base circuit board |
JPH0322950Y2 (en) * | 1984-12-24 | 1991-05-20 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5342794A (en) * | 1976-09-29 | 1978-04-18 | Sumitomo Metal Ind Ltd | Magnetic defectoscope for internal wall defect |
-
1979
- 1979-08-08 JP JP10016379A patent/JPS5624431A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5342794A (en) * | 1976-09-29 | 1978-04-18 | Sumitomo Metal Ind Ltd | Magnetic defectoscope for internal wall defect |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60179236A (en) * | 1984-02-27 | 1985-09-13 | Nippon Valqua Ind Ltd | Manufacture of tetrafluoroethylene resin porous material |
US7497350B2 (en) | 2002-04-30 | 2009-03-03 | Daiwa Can Company | Opening curled part of metal container and method of forming the opening curled part |
US7721578B2 (en) | 2002-04-30 | 2010-05-25 | Daiwa Can Company | Opening curled portion of metal can and forming method thereof |
JP2011183814A (en) * | 2004-04-23 | 2011-09-22 | Gore Enterprise Holdings Inc | Fluoropolymer barrier material |
CN112789150A (en) * | 2018-10-04 | 2021-05-11 | 日东电工株式会社 | Heat-resistant release sheet and thermocompression bonding method |
WO2021200409A1 (en) * | 2020-04-02 | 2021-10-07 | 日東電工株式会社 | Heat-resistant release sheet and method for carrying out step involving heating and melting of resin |
CN111941868A (en) * | 2020-07-10 | 2020-11-17 | 青岛大学 | Full-automatic PTFE film/fiber stretching sintering machine and stretching sintering method |
Also Published As
Publication number | Publication date |
---|---|
JPS5735091B2 (en) | 1982-07-27 |
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