JPS5751716A - Production of polyamide-imide resin soluble in cresol solvent - Google Patents

Production of polyamide-imide resin soluble in cresol solvent

Info

Publication number
JPS5751716A
JPS5751716A JP55127402A JP12740280A JPS5751716A JP S5751716 A JPS5751716 A JP S5751716A JP 55127402 A JP55127402 A JP 55127402A JP 12740280 A JP12740280 A JP 12740280A JP S5751716 A JPS5751716 A JP S5751716A
Authority
JP
Japan
Prior art keywords
lactam
solvent
acid
total
carboxyl
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
JP55127402A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Mukoyama
Toichi Sakata
Hiroshi Nishizawa
Yuichi Osada
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 JP55127402A priority Critical patent/JPS5751716A/en
Publication of JPS5751716A publication Critical patent/JPS5751716A/en
Pending legal-status Critical Current

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  • Polyurethanes Or Polyureas (AREA)

Abstract

PURPOSE: To obtain titled resin soluble in titled solvent and excellent in heat resistance, Freon resistance, etc., by reacting a mixture of an aromatic diisocyanate, a lactam, an acid anhydride-group-containing polycarboxylic acid and a specified branching component in a cresol solvent.
CONSTITUTION: Titled resin is obtained by reacting a mixture of an aromatic diisocyanate, e.g., 4,4'-diphenylmehane diisocyanate, a lactam, e.g., ε-caprolactam, an acid anhydride-group-containing polycarboxylic acid, e.g., trimellitic anhydride, and a compound of the formula, wherein X is carboxyl, Y is carboxyl, OH or NH2, R is an aromatic, aliphatic, alicyclic or heterocyclic residue and n is an integer ≥1, e.g., teimesic acid, in the presence of a cresol solvent. Said mixture contains the lactam in an amount corresponding to 20W90eq%, based on the total isocyanates and the compound of the formula in an amount corresponding to 1W20eq% based on total carboxyl groups and total acid anhydride groups.
COPYRIGHT: (C)1982,JPO&Japio
JP55127402A 1980-09-12 1980-09-12 Production of polyamide-imide resin soluble in cresol solvent Pending JPS5751716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55127402A JPS5751716A (en) 1980-09-12 1980-09-12 Production of polyamide-imide resin soluble in cresol solvent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55127402A JPS5751716A (en) 1980-09-12 1980-09-12 Production of polyamide-imide resin soluble in cresol solvent

Publications (1)

Publication Number Publication Date
JPS5751716A true JPS5751716A (en) 1982-03-26

Family

ID=14959095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55127402A Pending JPS5751716A (en) 1980-09-12 1980-09-12 Production of polyamide-imide resin soluble in cresol solvent

Country Status (1)

Country Link
JP (1) JPS5751716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016151022A (en) * 2015-02-19 2016-08-22 エア・ウォーター株式会社 Polyamide-imide resin and method for producing polyamide-imide resin, and thermosetting resin composition and cured product of thermosetting resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016151022A (en) * 2015-02-19 2016-08-22 エア・ウォーター株式会社 Polyamide-imide resin and method for producing polyamide-imide resin, and thermosetting resin composition and cured product of thermosetting resin composition

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