JPS56147812A - Phenolic resin composition for laminated sheet - Google Patents
Phenolic resin composition for laminated sheetInfo
- Publication number
- JPS56147812A JPS56147812A JP5218180A JP5218180A JPS56147812A JP S56147812 A JPS56147812 A JP S56147812A JP 5218180 A JP5218180 A JP 5218180A JP 5218180 A JP5218180 A JP 5218180A JP S56147812 A JPS56147812 A JP S56147812A
- Authority
- JP
- Japan
- Prior art keywords
- phenol
- phenolic resin
- ammoniac
- give
- compound
- 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)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: The titled composition, prepared by adding an ammoniac compound and magnesium hydroxide in a specific proportion as a reaction catalyst for a phenol with formaldehyde, and having good impregnating property into a base material and improved electrical properties.
CONSTITUTION: One mole of phenol, e.g. cresol, is reacted with 1W1.5mol aldehyde, preferably further 0.005W0.15mol ammoniac compound and magnesium hydroxide in an amount of 0.01W0.1mol based on one mole ammoniac compound to give a phenolic resin. An oil-modified phenol prepared by adding 45W25pts.wt. plasticizer, e.g. tung oil, to 55W75pts.wt. phenol may be used in the presence of p-toluenesulfonic acid as a catalyst instead of the phenol. The resultant phenolic resin is dehydrated in vacuo and diluted with an organic solvent to give a concentration of 50W70wt% and give the aimed composition.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5218180A JPS56147812A (en) | 1980-04-18 | 1980-04-18 | Phenolic resin composition for laminated sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5218180A JPS56147812A (en) | 1980-04-18 | 1980-04-18 | Phenolic resin composition for laminated sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56147812A true JPS56147812A (en) | 1981-11-17 |
Family
ID=12907632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5218180A Pending JPS56147812A (en) | 1980-04-18 | 1980-04-18 | Phenolic resin composition for laminated sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56147812A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS641714A (en) * | 1987-06-25 | 1989-01-06 | Shin Kobe Electric Mach Co Ltd | Production of phenolic polymer for molding material |
-
1980
- 1980-04-18 JP JP5218180A patent/JPS56147812A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS641714A (en) * | 1987-06-25 | 1989-01-06 | Shin Kobe Electric Mach Co Ltd | Production of phenolic polymer for molding material |
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