JPS5464588A - Preparation of water-soluble resol resin - Google Patents
Preparation of water-soluble resol resinInfo
- Publication number
- JPS5464588A JPS5464588A JP13131677A JP13131677A JPS5464588A JP S5464588 A JPS5464588 A JP S5464588A JP 13131677 A JP13131677 A JP 13131677A JP 13131677 A JP13131677 A JP 13131677A JP S5464588 A JPS5464588 A JP S5464588A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- water
- formaldehyde
- phenol
- methanol
- 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 prepare a water-soluble resol resin having excellent shelf stability and affinity for fibers, by the mild and uniform reaction of phenol with formaldehyde prepared by air oxidation of methanol.
CONSTITUTION: A gaseous or liquid mixture containing 50W62% of formaldehyde is prepared by air oxidation of methanol. The mixture is absorbed and dissolved in a phenol compound, e.g. cresol. etc., to give the composition wherein formaldehyde/phenol=1W3 (molar ratio), water/phenol=0.5W1 (weight ratio), and methanol/ formaldehyde ≤ 0.2(weight ratio). Sodium hydroxide, etc. is added to adjust pH to 9W10 and the reaction is carried out preferably at ≤ 65°C to give a water- soluble resol resin. The resin is neutralized with acetic acid, etc. to provide the desired resin.
EFFECT: The storage stablility under nitrogen atmosphere is improved. The resin is useful as binders for thermal insulating materials, wood adhesives, etc..
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13131677A JPS5464588A (en) | 1977-10-31 | 1977-10-31 | Preparation of water-soluble resol resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13131677A JPS5464588A (en) | 1977-10-31 | 1977-10-31 | Preparation of water-soluble resol resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5464588A true JPS5464588A (en) | 1979-05-24 |
Family
ID=15055093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13131677A Pending JPS5464588A (en) | 1977-10-31 | 1977-10-31 | Preparation of water-soluble resol resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5464588A (en) |
-
1977
- 1977-10-31 JP JP13131677A patent/JPS5464588A/en active Pending
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