JPS57115413A - Reduction of free resorcinol content in resorcinol resin - Google Patents
Reduction of free resorcinol content in resorcinol resinInfo
- Publication number
- JPS57115413A JPS57115413A JP61181A JP61181A JPS57115413A JP S57115413 A JPS57115413 A JP S57115413A JP 61181 A JP61181 A JP 61181A JP 61181 A JP61181 A JP 61181A JP S57115413 A JPS57115413 A JP S57115413A
- Authority
- JP
- Japan
- Prior art keywords
- resorcinol
- resin
- content
- free
- compound
- 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 effect significant reduction of the free resorcinol content in a resorcinol resin without degrading its properties by treating said resin with a compound having aromatic ring which carries both phenolic hydroxyl-and carbonyl groups.
CONSTITUTION: (A) a resorcinol resin obtained by the reaction, for example, between resorcinol and formaldehyde and (B) a comound having aromatic ring which carries both phenolic hydroxyl- and carbonyl-groups (e.g., o-hydroxybenzaldehyde) are brought into contact preferably at ≥70°C to reduce the free resorcinol content in the resin. The amount of the compound (B) is preferably 1W2 molar times as much as that of the free resorcinol. Furthermore, prior to the treatment by the compound (B), it is recommended to lower the content to a minimum by conventional means, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61181A JPS57115413A (en) | 1981-01-05 | 1981-01-05 | Reduction of free resorcinol content in resorcinol resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61181A JPS57115413A (en) | 1981-01-05 | 1981-01-05 | Reduction of free resorcinol content in resorcinol resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57115413A true JPS57115413A (en) | 1982-07-17 |
Family
ID=11478519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61181A Pending JPS57115413A (en) | 1981-01-05 | 1981-01-05 | Reduction of free resorcinol content in resorcinol resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57115413A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080331A1 (en) * | 2005-01-25 | 2006-08-03 | Hodogaya Chemical Co., Ltd. | Ketone-modified resorcinol-formalin resin |
-
1981
- 1981-01-05 JP JP61181A patent/JPS57115413A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080331A1 (en) * | 2005-01-25 | 2006-08-03 | Hodogaya Chemical Co., Ltd. | Ketone-modified resorcinol-formalin resin |
EP1842864A1 (en) * | 2005-01-25 | 2007-10-10 | Hodogaya Chemical Co., Ltd. | Ketone-modified resorcinol-formalin resin |
US7834124B2 (en) | 2005-01-25 | 2010-11-16 | Hodogaya Chemical Co., Ltd. | Ketone-modified resorcinol-formalin resin |
JP4926938B2 (en) * | 2005-01-25 | 2012-05-09 | 保土谷化学工業株式会社 | Ketone-modified resorcin formalin resin |
EP1842864A4 (en) * | 2005-01-25 | 2012-10-03 | Hodogaya Chemical Co Ltd | Ketone-modified resorcinol-formalin resin |
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