JPS56127622A - Preparation of polyamide-imide resin soluble in cresol solvent - Google Patents

Preparation of polyamide-imide resin soluble in cresol solvent

Info

Publication number
JPS56127622A
JPS56127622A JP3048280A JP3048280A JPS56127622A JP S56127622 A JPS56127622 A JP S56127622A JP 3048280 A JP3048280 A JP 3048280A JP 3048280 A JP3048280 A JP 3048280A JP S56127622 A JPS56127622 A JP S56127622A
Authority
JP
Japan
Prior art keywords
acid
anhydride
polyamide
preparation
equivalent
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.)
Pending
Application number
JP3048280A
Other languages
Japanese (ja)
Inventor
Hiroshi Nishizawa
Yuichi Osada
Yoshiyuki Mukoyama
Toichi Sakata
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.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP3048280A priority Critical patent/JPS56127622A/en
Publication of JPS56127622A publication Critical patent/JPS56127622A/en
Pending legal-status Critical Current

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  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To obtain the titled resin having improved resistance to heat and freon, and mechanical and electrical characteristics and high-speed operational rate, by reacting a specific polycarboxylic acid (anhydride) with a diisocyanate and a lactam.
CONSTITUTION: (A) A polycarboxylic acid anhydride e.g. trimellitic acid anhydride, other than ketopolycarboxylic acid is reacted with (B) a diisocyanate, e.g. 4,4'- diphenylmethane diisocyanate, (C) a lactam, e.g. ε-caprolactam, and (D) a ketopolycarboxylic acid (anhydride), e.g. 4,4'-benzophenonedicarboxylic acid. The amounts of the components (D) and (C) are 1W20 equivalent % and 20W90 equivalent % based on the total carboxyl equivalent.
USE: An enamel wire, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP3048280A 1980-03-10 1980-03-10 Preparation of polyamide-imide resin soluble in cresol solvent Pending JPS56127622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3048280A JPS56127622A (en) 1980-03-10 1980-03-10 Preparation of polyamide-imide resin soluble in cresol solvent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3048280A JPS56127622A (en) 1980-03-10 1980-03-10 Preparation of polyamide-imide resin soluble in cresol solvent

Publications (1)

Publication Number Publication Date
JPS56127622A true JPS56127622A (en) 1981-10-06

Family

ID=12305053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3048280A Pending JPS56127622A (en) 1980-03-10 1980-03-10 Preparation of polyamide-imide resin soluble in cresol solvent

Country Status (1)

Country Link
JP (1) JPS56127622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208323A (en) * 1982-05-28 1983-12-05 Hitachi Chem Co Ltd Production of polyamide-imide resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208323A (en) * 1982-05-28 1983-12-05 Hitachi Chem Co Ltd Production of polyamide-imide resin

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