JPS57109614A - Manufacture of polyimide film - Google Patents

Manufacture of polyimide film

Info

Publication number
JPS57109614A
JPS57109614A JP18746480A JP18746480A JPS57109614A JP S57109614 A JPS57109614 A JP S57109614A JP 18746480 A JP18746480 A JP 18746480A JP 18746480 A JP18746480 A JP 18746480A JP S57109614 A JPS57109614 A JP S57109614A
Authority
JP
Japan
Prior art keywords
polyamide acid
catalyzer
dehydrating agent
polyamide
varnish
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
JP18746480A
Other languages
Japanese (ja)
Other versions
JPS6140165B2 (en
Inventor
Masamichi Kido
Takashi Sakubatake
Takehiko Noguchi
Junji Uda
Tsuneo Yamamoto
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 JP18746480A priority Critical patent/JPS57109614A/en
Publication of JPS57109614A publication Critical patent/JPS57109614A/en
Publication of JPS6140165B2 publication Critical patent/JPS6140165B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE: To obtain the polyimide film of which the pot life is extended and workability is improved, by imidizing chemically the self-supporting polyamide acid gel film by using dehydrating agent and catalyzer, peeling off from the substrate and heat treating.
CONSTITUTION: (A) Component composed of varnish of polyamide shown in formula (concentration of solid component; 10W40wt%, viscosity; 200W50,000p) and mainly the dehydrating agent (e.g. acetic anhydride etc.) and (B) component composed of varnish of polyamide acid and mainly the catalyzer (e.g. pyridine etc.) are beforehand mixed so as to be dehydrating agent/polyamide acid; 2W16 (mol ratio), catalyzer/polyamide acid; 0.02W2 (mol ratio). And it is supplied to the applying head from another feeding port, applied to the metal drum or the metal belt kept at the temperture 60W200°C and dried. The obtained selfsupporting polyamide acid gel film is peeled off from the substrate and fixed at its both ends by the supporting device like the pin sheet etc. and heat treated.
COPYRIGHT: (C)1982,JPO&Japio
JP18746480A 1980-12-26 1980-12-26 Manufacture of polyimide film Granted JPS57109614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18746480A JPS57109614A (en) 1980-12-26 1980-12-26 Manufacture of polyimide film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18746480A JPS57109614A (en) 1980-12-26 1980-12-26 Manufacture of polyimide film

Publications (2)

Publication Number Publication Date
JPS57109614A true JPS57109614A (en) 1982-07-08
JPS6140165B2 JPS6140165B2 (en) 1986-09-08

Family

ID=16206532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18746480A Granted JPS57109614A (en) 1980-12-26 1980-12-26 Manufacture of polyimide film

Country Status (1)

Country Link
JP (1) JPS57109614A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013052625A (en) * 2011-09-05 2013-03-21 Kaneka Corp Method of manufacturing multilayer polyimide film
US8962790B2 (en) 2001-02-27 2015-02-24 Kaneka Corporation Polyimide film and process for producing the same
JP2016064661A (en) * 2015-11-10 2016-04-28 株式会社カネカ Method for producing multilayer polyimide film

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342774A (en) * 1964-01-20 1967-09-19 Du Pont Direct preparation of aromatic polyimides

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342774A (en) * 1964-01-20 1967-09-19 Du Pont Direct preparation of aromatic polyimides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8962790B2 (en) 2001-02-27 2015-02-24 Kaneka Corporation Polyimide film and process for producing the same
US9441082B2 (en) 2001-02-27 2016-09-13 Kaneka Corporation Polyimide film and process for producing the same
JP2013052625A (en) * 2011-09-05 2013-03-21 Kaneka Corp Method of manufacturing multilayer polyimide film
JP2016064661A (en) * 2015-11-10 2016-04-28 株式会社カネカ Method for producing multilayer polyimide film

Also Published As

Publication number Publication date
JPS6140165B2 (en) 1986-09-08

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