JPS57182313A - Modified phenol resin and its production - Google Patents
Modified phenol resin and its productionInfo
- Publication number
- JPS57182313A JPS57182313A JP6731981A JP6731981A JPS57182313A JP S57182313 A JPS57182313 A JP S57182313A JP 6731981 A JP6731981 A JP 6731981A JP 6731981 A JP6731981 A JP 6731981A JP S57182313 A JPS57182313 A JP S57182313A
- Authority
- JP
- Japan
- Prior art keywords
- phenol resin
- hydroxyl groups
- resin
- reacting
- phenolic hydroxyl
- 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
Abstract
PURPOSE: To obtain a modified phenol resin suitable for the urethane reaction by converting the phenolic hydroxyl groups into alcoholic hydroxyl groups, by reacting an alkylene carbonate with a benzyl ether type phenol resin.
CONSTITUTION: The titled modified resin is obtained by reacting a benzyl ether type phenol resin with an alkylene carbonate of the formula, wherein R and R' are each H or a 1W6C alkyl (e.g., ethylene carbonate) in the presence of an alkaline catalyst such as potassium carbonate to thereby convert the phenolic hydroxyl groups into alcoholic hydroxyl groups. The conversion is 0.01W1mol, pref., 0.1W0.7mol per mol phenolic hydroxyl group. Cured products obtained by reacting this resin with a polyisocyanate have a high crosslinking density, are nonbrittle, and have a low content of unreacted resin and improved mechanical strength.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6731981A JPS57182313A (en) | 1981-05-04 | 1981-05-04 | Modified phenol resin and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6731981A JPS57182313A (en) | 1981-05-04 | 1981-05-04 | Modified phenol resin and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57182313A true JPS57182313A (en) | 1982-11-10 |
JPS6220207B2 JPS6220207B2 (en) | 1987-05-06 |
Family
ID=13341573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6731981A Granted JPS57182313A (en) | 1981-05-04 | 1981-05-04 | Modified phenol resin and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57182313A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61174216A (en) * | 1985-01-29 | 1986-08-05 | Gunei Kagaku Kogyo Kk | Phenolic resin composition for water absorption preventive coating of water-absorbing aggregate |
US5205964A (en) * | 1988-02-01 | 1993-04-27 | Nalco Chemical Company | Method of breaking crude oil emulsions using ethylene carbonate adducts of alkylphenol-formaldehyde resins |
EP2374866A1 (en) * | 2010-04-06 | 2011-10-12 | Infineum International Limited | A lubricating oil composition comprising alkoxylated phenol-formaldehyde condensate |
JP2017053697A (en) * | 2015-09-09 | 2017-03-16 | 日立造船株式会社 | Method for measuring modified rate of maleic anhydride modified polyisoprene |
WO2021039832A1 (en) * | 2019-08-27 | 2021-03-04 | 三菱瓦斯化学株式会社 | Urethane resin |
-
1981
- 1981-05-04 JP JP6731981A patent/JPS57182313A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61174216A (en) * | 1985-01-29 | 1986-08-05 | Gunei Kagaku Kogyo Kk | Phenolic resin composition for water absorption preventive coating of water-absorbing aggregate |
US5205964A (en) * | 1988-02-01 | 1993-04-27 | Nalco Chemical Company | Method of breaking crude oil emulsions using ethylene carbonate adducts of alkylphenol-formaldehyde resins |
EP2374866A1 (en) * | 2010-04-06 | 2011-10-12 | Infineum International Limited | A lubricating oil composition comprising alkoxylated phenol-formaldehyde condensate |
JP2017053697A (en) * | 2015-09-09 | 2017-03-16 | 日立造船株式会社 | Method for measuring modified rate of maleic anhydride modified polyisoprene |
WO2021039832A1 (en) * | 2019-08-27 | 2021-03-04 | 三菱瓦斯化学株式会社 | Urethane resin |
CN114206969A (en) * | 2019-08-27 | 2022-03-18 | 三菱瓦斯化学株式会社 | Polyurethane resin |
US11840598B2 (en) | 2019-08-27 | 2023-12-12 | Mitsubishi Gas Chemical Company, Inc. | Urethane resin |
CN114206969B (en) * | 2019-08-27 | 2024-03-08 | 三菱瓦斯化学株式会社 | Polyurethane resin |
Also Published As
Publication number | Publication date |
---|---|
JPS6220207B2 (en) | 1987-05-06 |
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