JPS55106215A - Solid resol type phenol resin - Google Patents
Solid resol type phenol resinInfo
- Publication number
- JPS55106215A JPS55106215A JP796979A JP796979A JPS55106215A JP S55106215 A JPS55106215 A JP S55106215A JP 796979 A JP796979 A JP 796979A JP 796979 A JP796979 A JP 796979A JP S55106215 A JPS55106215 A JP S55106215A
- Authority
- JP
- Japan
- Prior art keywords
- index
- resin
- phenol resin
- nitrogen
- phenol
- 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 phenol resin having specified characters and suitable for resin binder which does not need curing agent by reacting phenols with aldehydes in two steps in the presence of at least two kinds of catalysts whose functions and effects are different.
CONSTITUTION: The first-step reaction of phenols such as phenol or p-cresol with aldehydes such as formalin or polyoxymethylene in the presence of a primary catalyst such as ammonia or nitrogen-containing compounds gives the first condensation products having methylene and nitrogen bonds in a phenol nucleus which constitute basic structures of the resin. Second reaction which is carried out in the presence of a different catalyst such as oxide or hydroxide of alkali metal or alkaline earth metal gives a solid resol type phenol resin whose index of nitrogen bond is 0.6W0.9, index methylene bond is 0.18W0.25, index of methylol group is 0.4W0.7, softening point is 75W90°C, gelation time is 40W120 seconds and MW is 300W450.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP796979A JPS55106215A (en) | 1979-01-26 | 1979-01-26 | Solid resol type phenol resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP796979A JPS55106215A (en) | 1979-01-26 | 1979-01-26 | Solid resol type phenol resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55106215A true JPS55106215A (en) | 1980-08-14 |
Family
ID=11680285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP796979A Pending JPS55106215A (en) | 1979-01-26 | 1979-01-26 | Solid resol type phenol resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55106215A (en) |
-
1979
- 1979-01-26 JP JP796979A patent/JPS55106215A/en active Pending
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