JPS5659835A - Curing agent for epoxy resin - Google Patents

Curing agent for epoxy resin

Info

Publication number
JPS5659835A
JPS5659835A JP13393679A JP13393679A JPS5659835A JP S5659835 A JPS5659835 A JP S5659835A JP 13393679 A JP13393679 A JP 13393679A JP 13393679 A JP13393679 A JP 13393679A JP S5659835 A JPS5659835 A JP S5659835A
Authority
JP
Japan
Prior art keywords
anhydride
curing agent
epoxy resin
isomers
methyltetrahydrophthalic
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
JP13393679A
Other languages
Japanese (ja)
Other versions
JPS5728504B2 (en
Inventor
Toshio Akima
Takeshi Nakahara
Etsusaburo Kudo
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 JP13393679A priority Critical patent/JPS5659835A/en
Publication of JPS5659835A publication Critical patent/JPS5659835A/en
Publication of JPS5728504B2 publication Critical patent/JPS5728504B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To improve liquid stability of titled curing agent, by adding to the curing agent, methyltetrahydrophthalic anhydride and methylendomethylenetetrahydrophthalic anhydride, both of which consist of isomers in specified ratios.
CONSTITUTION: The epoxy resin curing agent is a liquid mixture containing 70W 55pts.wt. of methyltetrahydrophthalic anhydride and 30W45pts.wt. of methylendomethylenetetrahydrophthalic anhydride. The methyltetrahydrophthaic anhydride is constituted from isomers, i.e., (I) 3-methyltetrahydrophthalic anhydride (A) and (II) 4-methyltetrahydrophthalic anhydride (B), so that the weight ratio, (A)/(B), is 30/70W40/60. And the acid (B) is constituted from isomers, i.e., 4- methyl-Δ3-tetrahydrophthalic anhydride (C) and 4-methyl-Δ4-tetrahydrophthalic anhydride (D), so that the weight ratio, (C)/(D), is below 40/60.
COPYRIGHT: (C)1981,JPO&Japio
JP13393679A 1979-10-16 1979-10-16 Curing agent for epoxy resin Granted JPS5659835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13393679A JPS5659835A (en) 1979-10-16 1979-10-16 Curing agent for epoxy resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13393679A JPS5659835A (en) 1979-10-16 1979-10-16 Curing agent for epoxy resin

Publications (2)

Publication Number Publication Date
JPS5659835A true JPS5659835A (en) 1981-05-23
JPS5728504B2 JPS5728504B2 (en) 1982-06-17

Family

ID=15116524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13393679A Granted JPS5659835A (en) 1979-10-16 1979-10-16 Curing agent for epoxy resin

Country Status (1)

Country Link
JP (1) JPS5659835A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175609U (en) * 1984-10-23 1986-05-21

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598223A (en) * 1979-01-19 1980-07-26 Hitachi Chem Co Ltd Liquid epoxy resin hardener

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598223A (en) * 1979-01-19 1980-07-26 Hitachi Chem Co Ltd Liquid epoxy resin hardener

Also Published As

Publication number Publication date
JPS5728504B2 (en) 1982-06-17

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