JPS5525423A - Preparation of phenolic resin - Google Patents
Preparation of phenolic resinInfo
- Publication number
- JPS5525423A JPS5525423A JP9747478A JP9747478A JPS5525423A JP S5525423 A JPS5525423 A JP S5525423A JP 9747478 A JP9747478 A JP 9747478A JP 9747478 A JP9747478 A JP 9747478A JP S5525423 A JPS5525423 A JP S5525423A
- Authority
- JP
- Japan
- Prior art keywords
- molar ratio
- phenol
- reacted
- give
- aldehyde
- 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
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To obtain the title resin capable of giving laminates with a high thickness accuracy, free from molding thin spots, by reacting a phenol with an aldehyde under specific conditions of the pH and molar ratio stepwise.
CONSTITUTION: A phenol (P) is reacted with an aldehyde (F) at a molar ratio of (F) to (P) of 0.55W0.75:1 in the presence of an acid catalyst to give a reaction product having a number-average molecular weight of 175W275, which is reacted with a formaldehyde at a molar ratio (F/P)≥1.07:1 under alkaline conditions by adding ammonia or an amine to give the desired resin varnish.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9747478A JPS5525423A (en) | 1978-08-09 | 1978-08-09 | Preparation of phenolic resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9747478A JPS5525423A (en) | 1978-08-09 | 1978-08-09 | Preparation of phenolic resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5525423A true JPS5525423A (en) | 1980-02-23 |
JPS5758366B2 JPS5758366B2 (en) | 1982-12-09 |
Family
ID=14193287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9747478A Granted JPS5525423A (en) | 1978-08-09 | 1978-08-09 | Preparation of phenolic resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5525423A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5966246U (en) * | 1982-10-22 | 1984-05-02 | 岩崎通信機株式会社 | Black border removal device for electrophotographic engraving machine |
WO1996015169A1 (en) * | 1993-05-12 | 1996-05-23 | Commonwealth Scientific And Industrial Research Organisation | Resins |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5346394A (en) * | 1976-10-09 | 1978-04-25 | Eidai Co Ltd | Preparation of resol type-phenol resin |
-
1978
- 1978-08-09 JP JP9747478A patent/JPS5525423A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5346394A (en) * | 1976-10-09 | 1978-04-25 | Eidai Co Ltd | Preparation of resol type-phenol resin |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5966246U (en) * | 1982-10-22 | 1984-05-02 | 岩崎通信機株式会社 | Black border removal device for electrophotographic engraving machine |
WO1996015169A1 (en) * | 1993-05-12 | 1996-05-23 | Commonwealth Scientific And Industrial Research Organisation | Resins |
Also Published As
Publication number | Publication date |
---|---|
JPS5758366B2 (en) | 1982-12-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5356288A (en) | Preparation of phenolic resin | |
JPS5525423A (en) | Preparation of phenolic resin | |
CA2106769A1 (en) | Process for conducting chemical reactions with formaldehyde | |
JPS5437190A (en) | Preparation of phenolic resin | |
JPS5573721A (en) | Preparation of oil-modified phenolic resin | |
JPS54116082A (en) | Preparation of phenolic resin | |
JPS5761015A (en) | Production of phenol resin | |
JPS5398391A (en) | Production of modified phenolic resin | |
JPS55116717A (en) | Preparation of resol-type phenol-formaldehyde resin | |
JPS5392892A (en) | Preparation of water-soluble melamine-phenol condensation resin having improved storage stability | |
JPS5554345A (en) | Preparation of water-soluble phenolic resin | |
JPS5761016A (en) | Production of rapid-curing phenol resin | |
JPS5538836A (en) | Epoxy resin curing agent | |
JPS54133594A (en) | Preparation of water-soluble resol-type phenolic resin | |
EP0498301A3 (en) | Process for preparing a watersoluble (form)aldehyde resin and adhesive composition containing the same | |
JPS5476670A (en) | Production of phenolic resin laminate | |
JPS5361684A (en) | Preparation of methyl-etherified methylol melamine resin | |
JPS55102621A (en) | Preparation of phenolic resin modified with polybutadiene | |
JPS5659860A (en) | Phenol resin | |
JPS5384097A (en) | Praparation of phenolic resin | |
JPS55715A (en) | Novel resin composition laminate | |
JPS5394588A (en) | Production of phenolic resin | |
JPS54118492A (en) | Preparation of casting resin | |
JPS57167312A (en) | Production of resorcinol copolymer | |
JPS5659861A (en) | Phenol resin |