JPS5527338A - Preparation of solid resol-type phenolic resin - Google Patents
Preparation of solid resol-type phenolic resinInfo
- Publication number
- JPS5527338A JPS5527338A JP10003778A JP10003778A JPS5527338A JP S5527338 A JPS5527338 A JP S5527338A JP 10003778 A JP10003778 A JP 10003778A JP 10003778 A JP10003778 A JP 10003778A JP S5527338 A JPS5527338 A JP S5527338A
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- formaldehyde
- phenol
- resin
- preparation
- 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
- Mold Materials And Core Materials (AREA)
- Laminated Bodies (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To prepare the title resin having improved qualities and heat-curable without emitting harmful gas, by reacting a phenol with formaldehyde in the presence of an N-containing compound, and further reacting the reaction product in the presence of an alkali metal.
CONSTITUTION: Phenol or its derivative is made to react with formaldehyde or its derivative in two steps. The initial step of the reaction is carried out in the presence of ammonia or an N-containing compound at 50W100°C for 1W6 hours, and the final step of the reaction is carried out in the presence of the oxide or hydroxide of an alkali metal or an alkaline earth metal while replenishing consumed formaldehyde. The content of the methylol residue in the produced resin is 25W35wt%. After the condensation reaction, the reaction product is heated to ≤100°C under reduced pressure to remove the water and the unreacted phenol from the resin.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10003778A JPS5527338A (en) | 1978-08-18 | 1978-08-18 | Preparation of solid resol-type phenolic resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10003778A JPS5527338A (en) | 1978-08-18 | 1978-08-18 | Preparation of solid resol-type phenolic resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5527338A true JPS5527338A (en) | 1980-02-27 |
JPS5544086B2 JPS5544086B2 (en) | 1980-11-10 |
Family
ID=14263318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10003778A Granted JPS5527338A (en) | 1978-08-18 | 1978-08-18 | Preparation of solid resol-type phenolic resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5527338A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6070726U (en) * | 1983-10-21 | 1985-05-18 | 本田技研工業株式会社 | Internal combustion engine fuel tank mounting device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5127405A (en) * | 1974-08-30 | 1976-03-08 | Hitachi Ltd | KAITENDENKYOKOIRUNOSETSUZOKUHO |
JPS5135517A (en) * | 1974-09-21 | 1976-03-26 | Nakanippon Yuso Kiki Kk | SENKAIKENCHIKUBUTSU |
JPS5378924A (en) * | 1976-12-23 | 1978-07-12 | Sumitomo Durez Co | Preparation of sand grain for casting |
JPS5428392A (en) * | 1977-05-02 | 1979-03-02 | Eidai Co Ltd | Preparation of resol-type phenolic resin |
-
1978
- 1978-08-18 JP JP10003778A patent/JPS5527338A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5127405A (en) * | 1974-08-30 | 1976-03-08 | Hitachi Ltd | KAITENDENKYOKOIRUNOSETSUZOKUHO |
JPS5135517A (en) * | 1974-09-21 | 1976-03-26 | Nakanippon Yuso Kiki Kk | SENKAIKENCHIKUBUTSU |
JPS5378924A (en) * | 1976-12-23 | 1978-07-12 | Sumitomo Durez Co | Preparation of sand grain for casting |
JPS5428392A (en) * | 1977-05-02 | 1979-03-02 | Eidai Co Ltd | Preparation of resol-type phenolic resin |
Also Published As
Publication number | Publication date |
---|---|
JPS5544086B2 (en) | 1980-11-10 |
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