JPS5710616A - Preparation of phenolic resin composition - Google Patents
Preparation of phenolic resin compositionInfo
- Publication number
- JPS5710616A JPS5710616A JP8564180A JP8564180A JPS5710616A JP S5710616 A JPS5710616 A JP S5710616A JP 8564180 A JP8564180 A JP 8564180A JP 8564180 A JP8564180 A JP 8564180A JP S5710616 A JPS5710616 A JP S5710616A
- Authority
- JP
- Japan
- Prior art keywords
- phenolic resin
- type phenolic
- reaction
- precondensate
- give
- 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
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To obtain the titled composition useful as a molding material having improved storage stability without causing bulk formation and occurrence of adhesion, by adding a precondensate of a novolak type phenolic resin to the reaction system of a resol type phenolic resin during the reaction.
CONSTITUTION: (A) A phenol is blended with (B) an aldehyde, e.g., formaldehyde etc. in a given molar ratio, and (C) preferably 5W30wt% based on component A of precondensate of a solid novolak type phenolic resin is added to the blend and the reaction is carried out in the presence of an alkali catalyst, to give a solid resol type phenolic resin. A release agent, e.g., stearic acid, etc. and a colorant, e.g., carbon black, etc. are added to the phenolic resin, which is ground to give a molding material.
USE: A general electrical insulating material free from ammonia, e.g., breaker, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8564180A JPS5710616A (en) | 1980-06-23 | 1980-06-23 | Preparation of phenolic resin composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8564180A JPS5710616A (en) | 1980-06-23 | 1980-06-23 | Preparation of phenolic resin composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5710616A true JPS5710616A (en) | 1982-01-20 |
Family
ID=13864448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8564180A Pending JPS5710616A (en) | 1980-06-23 | 1980-06-23 | Preparation of phenolic resin composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5710616A (en) |
-
1980
- 1980-06-23 JP JP8564180A patent/JPS5710616A/en active Pending
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