JPS5352600A - Preparation of epoxy resin curing agent - Google Patents

Preparation of epoxy resin curing agent

Info

Publication number
JPS5352600A
JPS5352600A JP12718576A JP12718576A JPS5352600A JP S5352600 A JPS5352600 A JP S5352600A JP 12718576 A JP12718576 A JP 12718576A JP 12718576 A JP12718576 A JP 12718576A JP S5352600 A JPS5352600 A JP S5352600A
Authority
JP
Japan
Prior art keywords
epoxy resin
curing agent
resin curing
preparation
organic acid
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
JP12718576A
Other languages
Japanese (ja)
Inventor
Takashi Yokoyama
Yasuo Miyadera
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP12718576A priority Critical patent/JPS5352600A/en
Publication of JPS5352600A publication Critical patent/JPS5352600A/en
Pending legal-status Critical Current

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  • Epoxy Resins (AREA)

Abstract

PURPOSE: To prepare an epoxy resin curing agent of good storage stability by heat treatment of a part of an organic acid anhydride in the presence of an catalyst fallowed by dilution of the resulting system with the rest of the organic acid anhydride.
COPYRIGHT: (C)1978,JPO&Japio
JP12718576A 1976-10-25 1976-10-25 Preparation of epoxy resin curing agent Pending JPS5352600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12718576A JPS5352600A (en) 1976-10-25 1976-10-25 Preparation of epoxy resin curing agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12718576A JPS5352600A (en) 1976-10-25 1976-10-25 Preparation of epoxy resin curing agent

Publications (1)

Publication Number Publication Date
JPS5352600A true JPS5352600A (en) 1978-05-13

Family

ID=14953774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12718576A Pending JPS5352600A (en) 1976-10-25 1976-10-25 Preparation of epoxy resin curing agent

Country Status (1)

Country Link
JP (1) JPS5352600A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422499A (en) * 1977-07-22 1979-02-20 Dainippon Ink & Chem Inc Novel thermosetting composition composed of epoxy resin and polycarboxylic acid anhydride

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422499A (en) * 1977-07-22 1979-02-20 Dainippon Ink & Chem Inc Novel thermosetting composition composed of epoxy resin and polycarboxylic acid anhydride
JPS5530726B2 (en) * 1977-07-22 1980-08-13

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