JPS565831A - Phenolic resin molding material - Google Patents
Phenolic resin molding materialInfo
- Publication number
- JPS565831A JPS565831A JP8208079A JP8208079A JPS565831A JP S565831 A JPS565831 A JP S565831A JP 8208079 A JP8208079 A JP 8208079A JP 8208079 A JP8208079 A JP 8208079A JP S565831 A JPS565831 A JP S565831A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- phenolic resin
- molding material
- phenol
- free
- 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
- Processes Of Treating Macromolecular Substances (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To prevent mold contamination in processing and the corrosion occurrence of metallic parts in an airtightly closed device, by adding a low-boiling liquid miscible with phenol to a phenolic resin molding material, followed by evaporating free phenol content together with the liquid.
CONSTITUTION: Preferably 3W15wt.% of a liquid (e.g., water, methanol, etc.) having the boiling point not higher than 110°C, miscible with phenol is added in a blending or kneading process of a novolak type or resol type phenolic resin. The free phenol-containing liquid is evaporated by drying, etc. and the free phenol content is reduced to not more than 1wt.% to give the desired molding material.
EFFECT: When used as a microswitch, circuit-breaker, etc., the material does not evolve ammonia free from metal corrosion and stain occurrence.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8208079A JPS565831A (en) | 1979-06-28 | 1979-06-28 | Phenolic resin molding material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8208079A JPS565831A (en) | 1979-06-28 | 1979-06-28 | Phenolic resin molding material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS565831A true JPS565831A (en) | 1981-01-21 |
Family
ID=13764470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8208079A Pending JPS565831A (en) | 1979-06-28 | 1979-06-28 | Phenolic resin molding material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS565831A (en) |
-
1979
- 1979-06-28 JP JP8208079A patent/JPS565831A/en active Pending
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