JPS5562916A - Preparation of modified phenolic resin - Google Patents
Preparation of modified phenolic resinInfo
- Publication number
- JPS5562916A JPS5562916A JP13611578A JP13611578A JPS5562916A JP S5562916 A JPS5562916 A JP S5562916A JP 13611578 A JP13611578 A JP 13611578A JP 13611578 A JP13611578 A JP 13611578A JP S5562916 A JPS5562916 A JP S5562916A
- Authority
- JP
- Japan
- Prior art keywords
- phenolic resin
- preparation
- modified phenolic
- modified
- molecular weight
- 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
Links
Landscapes
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To prepare a modified phenolic resin useful for prepreg capable of giving laminates having improved electrical insulating properties, flexibility, and punchability, by modifying a phenolic resin with a polyalkylene glycol glycidyl ether.
CONSTITUTION: (A) 100 parts by wt. of a phenolic resin is modified with (B) 5W30 parts by wt. of a polyalkylene glycol glycidyl ether having a number-average molecular weight of preferably ≤1,000. If the molecular weight exceeds 1,000, the bulge suppressing effect is reduced. Monoglycidyl or diglycidyl ether may be cited as (B); however, only the diglycidyl ether provides the prevention of bulge.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13611578A JPS5562916A (en) | 1978-11-04 | 1978-11-04 | Preparation of modified phenolic resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13611578A JPS5562916A (en) | 1978-11-04 | 1978-11-04 | Preparation of modified phenolic resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5562916A true JPS5562916A (en) | 1980-05-12 |
Family
ID=15167640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13611578A Pending JPS5562916A (en) | 1978-11-04 | 1978-11-04 | Preparation of modified phenolic resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5562916A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296199A (en) * | 1985-06-20 | 1986-12-26 | 山陽国策パルプ株式会社 | Raw paper form electric insulating laminate board |
JPH02169613A (en) * | 1988-12-21 | 1990-06-29 | Matsushita Electric Works Ltd | Phenolic resin composition |
-
1978
- 1978-11-04 JP JP13611578A patent/JPS5562916A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296199A (en) * | 1985-06-20 | 1986-12-26 | 山陽国策パルプ株式会社 | Raw paper form electric insulating laminate board |
JPH02169613A (en) * | 1988-12-21 | 1990-06-29 | Matsushita Electric Works Ltd | Phenolic resin composition |
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