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JPS5670023A - Curing agent for heat stable epoxy resin - Google Patents

Curing agent for heat stable epoxy resin

Info

Publication number
JPS5670023A
JPS5670023A JP14625379A JP14625379A JPS5670023A JP S5670023 A JPS5670023 A JP S5670023A JP 14625379 A JP14625379 A JP 14625379A JP 14625379 A JP14625379 A JP 14625379A JP S5670023 A JPS5670023 A JP S5670023A
Authority
JP
Japan
Prior art keywords
acid anhydride
curing agent
liquid
pref
anhydride
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
JP14625379A
Other languages
Japanese (ja)
Other versions
JPS6136768B2 (en
Inventor
Shigeo Kiyono
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.)
Daicel Corp
Original Assignee
Daicel Corp
Daicel Chemical Industries 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 Daicel Corp, Daicel Chemical Industries Ltd filed Critical Daicel Corp
Priority to JP14625379A priority Critical patent/JPS5670023A/en
Publication of JPS5670023A publication Critical patent/JPS5670023A/en
Publication of JPS6136768B2 publication Critical patent/JPS6136768B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Epoxy Resins (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

PURPOSE: To prepare the titled curing agent giving a flexible cured product having high heat stability, by treating a particular aromatic carboxylic acid anhydride and a liquid butadiene polymer at a high temperature in the presence of a liquid dibasic acid anhydride.
CONSTITUTION: (A) An aromatic carboxylic acid anhydride having a melting point of ≥150°C (pref. composed mainly of trimellitic anhydride and containing pyromellitic anhydride, etc.) and (B) a liquid butadiene polymer having terminal OH groups (e.g. the polymer of formula and having a molecular weight of 3,000W 4,000) are heat treated pref. at 170W220°C in the presence of (C) a dibasic acid anhydride which is liquid at normal temperature (e.g. 3-methylhexahydrophthalic acid anhydride). The resulted product is, if necessary added with a cure accelerator to obtain the objective curing agent. The weight ratio of (A) to (C) is pref. (10: 90)W(70:30).
COPYRIGHT: (C)1981,JPO&Japio
JP14625379A 1979-11-12 1979-11-12 Curing agent for heat stable epoxy resin Granted JPS5670023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14625379A JPS5670023A (en) 1979-11-12 1979-11-12 Curing agent for heat stable epoxy resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14625379A JPS5670023A (en) 1979-11-12 1979-11-12 Curing agent for heat stable epoxy resin

Publications (2)

Publication Number Publication Date
JPS5670023A true JPS5670023A (en) 1981-06-11
JPS6136768B2 JPS6136768B2 (en) 1986-08-20

Family

ID=15403552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14625379A Granted JPS5670023A (en) 1979-11-12 1979-11-12 Curing agent for heat stable epoxy resin

Country Status (1)

Country Link
JP (1) JPS5670023A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03227317A (en) * 1990-01-31 1991-10-08 Somar Corp Liquid epoxy resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03227317A (en) * 1990-01-31 1991-10-08 Somar Corp Liquid epoxy resin composition

Also Published As

Publication number Publication date
JPS6136768B2 (en) 1986-08-20

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