JPS5767621A - Preparation of resol type phenolic resin - Google Patents
Preparation of resol type phenolic resinInfo
- Publication number
- JPS5767621A JPS5767621A JP14473980A JP14473980A JPS5767621A JP S5767621 A JPS5767621 A JP S5767621A JP 14473980 A JP14473980 A JP 14473980A JP 14473980 A JP14473980 A JP 14473980A JP S5767621 A JPS5767621 A JP S5767621A
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- aniline
- reduced pressure
- under reduced
- free formaldehyde
- 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 having low formalin smell, by adding a specific amount of aniline to a reaction product of a phenolic compound with formaldehyde in its final reaction stage or after dehydration under reduced pressure.
CONSTITUTION: A phenol is reacted with a drying oil (e.g., linseed oil, etc.) to give a phenolic compound modified by drying oil, which is reacted with formalin in the presence of an alkali catalyst under reflux. At a point of 5W10min before the beginning of dehydration under reduced pressure in the final stage of the reaction or at a point wherein a resin solution is obtained by adding a solvent to the reaction system after the dehydration under reduced pressure, aniline in an amount equimolar W1/20mol as that of the free formaldehyde of the reaction system or the resin solution so that the free formaldehyde is removed by the reaction with aniline, to give a resol type phenolic resin.
EFFECT: The amount of the free formaldehyde is reduced by the addition of aniline, and anhydroformaldehyde with little smell is formed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14473980A JPS5767621A (en) | 1980-10-15 | 1980-10-15 | Preparation of resol type phenolic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14473980A JPS5767621A (en) | 1980-10-15 | 1980-10-15 | Preparation of resol type phenolic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5767621A true JPS5767621A (en) | 1982-04-24 |
Family
ID=15369220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14473980A Pending JPS5767621A (en) | 1980-10-15 | 1980-10-15 | Preparation of resol type phenolic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5767621A (en) |
-
1980
- 1980-10-15 JP JP14473980A patent/JPS5767621A/en active Pending
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