JPS56103227A - Preparation of heat-resistant film - Google Patents

Preparation of heat-resistant film

Info

Publication number
JPS56103227A
JPS56103227A JP604880A JP604880A JPS56103227A JP S56103227 A JPS56103227 A JP S56103227A JP 604880 A JP604880 A JP 604880A JP 604880 A JP604880 A JP 604880A JP S56103227 A JPS56103227 A JP S56103227A
Authority
JP
Japan
Prior art keywords
film
carrier film
heat
solution
cast
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
Application number
JP604880A
Other languages
Japanese (ja)
Other versions
JPS6249301B2 (en
Inventor
Tsuneo Yamamoto
Takumi Kosugi
Kosaku Nagano
Kazuya Yonezawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP604880A priority Critical patent/JPS56103227A/en
Publication of JPS56103227A publication Critical patent/JPS56103227A/en
Publication of JPS6249301B2 publication Critical patent/JPS6249301B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To prepare an extremely-thin film having excellent isotropy, with a highly efficient apparatus and easy operation, by casting the soldifying a solution of a polymer capable of forming heterocyclic rings on a carrier film, and chemically removing the carrier film.
CONSTITUTION: A heat-resistant polymer capable of forming heterocyclic rings by cyclization, pref. a polyimide, is dissolved in an organic solvent, and the solution is cast on a carrier film. After solidifying the cast film, the carrier film is removed by chemical means. The removal of the carrier film is carried out by the chemical etching with aqueous solution of ferric chloride or hydrochloric acid when the film is aluminum foil, tin foil, or zinc foil, or by dissolving with m-cresol when the film is nylon.
COPYRIGHT: (C)1981,JPO&Japio
JP604880A 1980-01-21 1980-01-21 Preparation of heat-resistant film Granted JPS56103227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP604880A JPS56103227A (en) 1980-01-21 1980-01-21 Preparation of heat-resistant film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP604880A JPS56103227A (en) 1980-01-21 1980-01-21 Preparation of heat-resistant film

Publications (2)

Publication Number Publication Date
JPS56103227A true JPS56103227A (en) 1981-08-18
JPS6249301B2 JPS6249301B2 (en) 1987-10-19

Family

ID=11627727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP604880A Granted JPS56103227A (en) 1980-01-21 1980-01-21 Preparation of heat-resistant film

Country Status (1)

Country Link
JP (1) JPS56103227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000309026A (en) * 1999-04-27 2000-11-07 Material Design:Kk Extremely thin-gauge film and manufacture of the film

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528822A (en) * 1978-08-23 1980-02-29 Ube Ind Ltd Method for manufacturing polyimide film

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528822A (en) * 1978-08-23 1980-02-29 Ube Ind Ltd Method for manufacturing polyimide film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000309026A (en) * 1999-04-27 2000-11-07 Material Design:Kk Extremely thin-gauge film and manufacture of the film

Also Published As

Publication number Publication date
JPS6249301B2 (en) 1987-10-19

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