JPS55160020A - Epoxy resin composition - Google Patents
Epoxy resin compositionInfo
- Publication number
- JPS55160020A JPS55160020A JP3975080A JP3975080A JPS55160020A JP S55160020 A JPS55160020 A JP S55160020A JP 3975080 A JP3975080 A JP 3975080A JP 3975080 A JP3975080 A JP 3975080A JP S55160020 A JPS55160020 A JP S55160020A
- Authority
- JP
- Japan
- Prior art keywords
- novolak
- temp
- epoxy resin
- phenol
- reacted
- 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
Links
Landscapes
- Epoxy Resins (AREA)
Abstract
PURPOSE: To provide title compsn. having good curing characteristics and heat resistance, by a method wherein a novolak derived from phenol, formaldehyde and resorcinol is reacted with an epihalohydrin and the resulting epoxy-novolac resin is blended with a hardener.
CONSTITUTION: At least one phenol such as phenol, cresol, or isopropylphenol is reacted with form aldehyde in the presence of an alkali at a temp. of 40W150°C to obtain a resol type precondensate which is then reacted with resorcinol at a temp. of 70W140°C to obtain a novolak. An epihalohydrin is added to the novolak in an amount of 2W10mol, pref. 5W7mol per one hydroxyl gq. of the novolak. The mixt. is subjected to a dehalogenation-ring closure reaction in the presence of an alkali catalyst at a temp. of 20W120°C to obtain a novolak type epoxy resin. The epoxy resin is blended with a hardener such as amine hardener to obtain the desired resin compsn.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3975080A JPS55160020A (en) | 1980-03-27 | 1980-03-27 | Epoxy resin composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3975080A JPS55160020A (en) | 1980-03-27 | 1980-03-27 | Epoxy resin composition |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8915078A Division JPS5516047A (en) | 1978-07-20 | 1978-07-20 | Preparation of epoxy resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55160020A true JPS55160020A (en) | 1980-12-12 |
JPS6138728B2 JPS6138728B2 (en) | 1986-08-30 |
Family
ID=12561629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3975080A Granted JPS55160020A (en) | 1980-03-27 | 1980-03-27 | Epoxy resin composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160020A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57195116A (en) * | 1981-05-27 | 1982-11-30 | Asahi Denka Kogyo Kk | Epoxy resin composition |
-
1980
- 1980-03-27 JP JP3975080A patent/JPS55160020A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57195116A (en) * | 1981-05-27 | 1982-11-30 | Asahi Denka Kogyo Kk | Epoxy resin composition |
JPH0148289B2 (en) * | 1981-05-27 | 1989-10-18 | Asahi Denka Kogyo Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6138728B2 (en) | 1986-08-30 |
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