JPS57177018A - Improved poly(2,6-dimethyl-1,4-phenylene)ether and its preparation - Google Patents
Improved poly(2,6-dimethyl-1,4-phenylene)ether and its preparationInfo
- Publication number
- JPS57177018A JPS57177018A JP6061881A JP6061881A JPS57177018A JP S57177018 A JPS57177018 A JP S57177018A JP 6061881 A JP6061881 A JP 6061881A JP 6061881 A JP6061881 A JP 6061881A JP S57177018 A JPS57177018 A JP S57177018A
- Authority
- JP
- Japan
- Prior art keywords
- cresol
- component
- dimethylphenol
- phenylene
- dimethyl
- 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
- Polyethers (AREA)
Abstract
PURPOSE: To obtain the titled polymer having a low content of low-molecular- weight part, forming a molded article having improved gloss and appearance, causing no cracking, by subjecting a monomer mixture comprising 2,6-dimethylphenol as a main component, a small amount of a cresol, etc. to oxidative polymerization through dehydration.
CONSTITUTION: A monomer mixture comprising 2,6-dimethylphenol as a main component, ≤0.1wt% m-cresol, (A) ≤0.25wt% o-cresol, and (B) ≤0.15wt% p-cresol and/or 2,4,6-trimethylphenol in a weight ratio of component A/component B of 0.5W25 is subjected to continuous oxidative polymerization in the presence of a catalyst (e.g., manganese acetate-diethanolamine, etc) while an oxygen-containing gas is being fed, to give the titled polymer having [η] in a CHCl3 solution at 30°C of 0.50W0.75, a molecular weight calculated in terms of polystyrene of ≤10,000, and ≤8wt% elution part content.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6061881A JPS57177018A (en) | 1981-04-23 | 1981-04-23 | Improved poly(2,6-dimethyl-1,4-phenylene)ether and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6061881A JPS57177018A (en) | 1981-04-23 | 1981-04-23 | Improved poly(2,6-dimethyl-1,4-phenylene)ether and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57177018A true JPS57177018A (en) | 1982-10-30 |
Family
ID=13147441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6061881A Pending JPS57177018A (en) | 1981-04-23 | 1981-04-23 | Improved poly(2,6-dimethyl-1,4-phenylene)ether and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57177018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003014050A1 (en) * | 2001-08-07 | 2003-02-20 | Asahi Kasei Chemicals Corporation | 2,6-dimethylphenol composition |
| WO2023277624A1 (en) * | 2021-07-02 | 2023-01-05 | 주식회사 엘지화학 | Method for preparing polyphenylene oxide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144097A (en) * | 1976-05-26 | 1977-12-01 | Asahi Chem Ind Co Ltd | Preparation of polyphenylene ether copolymers |
| JPS52144098A (en) * | 1976-05-26 | 1977-12-01 | Asahi Chem Ind Co Ltd | Preparation of polyphenyle ether copolymers |
-
1981
- 1981-04-23 JP JP6061881A patent/JPS57177018A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144097A (en) * | 1976-05-26 | 1977-12-01 | Asahi Chem Ind Co Ltd | Preparation of polyphenylene ether copolymers |
| JPS52144098A (en) * | 1976-05-26 | 1977-12-01 | Asahi Chem Ind Co Ltd | Preparation of polyphenyle ether copolymers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003014050A1 (en) * | 2001-08-07 | 2003-02-20 | Asahi Kasei Chemicals Corporation | 2,6-dimethylphenol composition |
| US7060781B2 (en) | 2001-08-07 | 2006-06-13 | Asahi Kasei Chemicals Corporation | 2,6-dimethyphenol composition |
| WO2023277624A1 (en) * | 2021-07-02 | 2023-01-05 | 주식회사 엘지화학 | Method for preparing polyphenylene oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5723649A (en) | Highly heat-resistant thermoplastic resin composition | |
| JPS56104961A (en) | Novel polyphenylene-ether resin composition | |
| JPS5557841A (en) | Photosensitive composition | |
| JPS57177018A (en) | Improved poly(2,6-dimethyl-1,4-phenylene)ether and its preparation | |
| JPS5550062A (en) | Preparation of resin composition | |
| JPS5425996A (en) | Preparation of aromatic polyester | |
| JPS56136821A (en) | Polyphenylene ether copolymer | |
| JPS5556114A (en) | Preparation of high-impact polystyrene resin | |
| JPS57185304A (en) | Preparation of propylene polymer | |
| JPS56104935A (en) | Preparation of polyphenylene-ether copolymer | |
| JPS52144098A (en) | Preparation of polyphenyle ether copolymers | |
| JPS52144097A (en) | Preparation of polyphenylene ether copolymers | |
| JPS5714646A (en) | Stabilized aromatic polyether resin composition | |
| JPS5710641A (en) | Wholly aromatic copolyester resin composition | |
| JPS54139956A (en) | Forming material of phenolic resin | |
| JPS55135123A (en) | Phenolic resin-modified melamine resin composition | |
| GB1202096A (en) | Improvements in a process for the formation of polyphenylene ethers | |
| JPS56163144A (en) | Polyoxymethylene composition | |
| JPS5356298A (en) | Preparation of heat resistant poly (2,6-dimethyl p-phenylene ether) | |
| JPS6440556A (en) | Thermoplastic resin composition with both high stress cracking and impact resistances | |
| JPS55102621A (en) | Preparation of phenolic resin modified with polybutadiene | |
| JPS6424850A (en) | Resin composition | |
| JPS54133591A (en) | Preparation of resol-type phenolic resin | |
| JPS5335783A (en) | Preparation of conjugated diene polymers | |
| JPS5736151A (en) | Polyphenylene ether composition |