JPS5657815A - Preparation of resorcinol co-condensation resin - Google Patents
Preparation of resorcinol co-condensation resinInfo
- Publication number
- JPS5657815A JPS5657815A JP13477979A JP13477979A JPS5657815A JP S5657815 A JPS5657815 A JP S5657815A JP 13477979 A JP13477979 A JP 13477979A JP 13477979 A JP13477979 A JP 13477979A JP S5657815 A JPS5657815 A JP S5657815A
- Authority
- JP
- Japan
- Prior art keywords
- resorcinol
- molar ratio
- reacted
- 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.)
- Pending
Links
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
PURPOSE: To obtain a resin having improved water-solubility in neutral or weakly acidic range, improved electric properties and durability, by reacting a phenol with formaldehyde in the presence of an agent for sulfomethylation, followed by reacting the reaction product with resorcinol.
CONSTITUTION: (A) A phenol is reacted with (B) formaldehyde in the presence of (C) an agent for sulfomethylation (e.g., sodium sulfite, etc.), for example, 37wt% formalin as the ingredient B is reacted until the viscosity of the resin solution reaches 0.1W3 poise (preferably 0.3W2 poise), to give a reaction product, which is reacted with (D) resorcinol to prepare the desired resin. In the reaction, a molar ratio of the ingredient A to D is 0.3/0.7W0.95/0.05, a molar ratio of the ingredients (A+D) to B is 1/0.6W1/1.5 (preferably 1/0.75W1/1.2), and a molar ratio of C to B is 0.02/1W0.15/1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13477979A JPS5657815A (en) | 1979-10-18 | 1979-10-18 | Preparation of resorcinol co-condensation resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13477979A JPS5657815A (en) | 1979-10-18 | 1979-10-18 | Preparation of resorcinol co-condensation resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5657815A true JPS5657815A (en) | 1981-05-20 |
Family
ID=15136354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13477979A Pending JPS5657815A (en) | 1979-10-18 | 1979-10-18 | Preparation of resorcinol co-condensation resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5657815A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200479A2 (en) * | 1985-04-24 | 1986-11-05 | Indspec Chemical Corporation | Phenolic resins |
CN109912757A (en) * | 2019-03-14 | 2019-06-21 | 广汉恒奕石油技术开发有限责任公司 | A kind of production method of resin fluid loss additive |
-
1979
- 1979-10-18 JP JP13477979A patent/JPS5657815A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0200479A2 (en) * | 1985-04-24 | 1986-11-05 | Indspec Chemical Corporation | Phenolic resins |
CN109912757A (en) * | 2019-03-14 | 2019-06-21 | 广汉恒奕石油技术开发有限责任公司 | A kind of production method of resin fluid loss additive |
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