JPS5448898A - Purification of polyphenylene ether - Google Patents

Purification of polyphenylene ether

Info

Publication number
JPS5448898A
JPS5448898A JP11509377A JP11509377A JPS5448898A JP S5448898 A JPS5448898 A JP S5448898A JP 11509377 A JP11509377 A JP 11509377A JP 11509377 A JP11509377 A JP 11509377A JP S5448898 A JPS5448898 A JP S5448898A
Authority
JP
Japan
Prior art keywords
polyphenylene ether
swelling
particles
purification
dispersion
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
Application number
JP11509377A
Other languages
Japanese (ja)
Other versions
JPS6034570B2 (en
Inventor
Yoji Irie
Shinichi Izawa
Koji Kasai
Atsuo Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP11509377A priority Critical patent/JPS6034570B2/en
Publication of JPS5448898A publication Critical patent/JPS5448898A/en
Publication of JPS6034570B2 publication Critical patent/JPS6034570B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Polyethers (AREA)

Abstract

PURPOSE: To purify and decolor polyphenylene ether using a small amount of solvent, by dispersing the polymer particles in a specific medium, swelling the particles and contacting the dispersion with an aqueous solution of a reducing agent.
CONSTITUTION: Polyphenylene ether particles are dispersed in a medium, e.g. butanol, etc., which is substantially non-compatible with water and capable of swelling the polymer. After swelling, the dispersion is contacted with an aqueous solution of a reducing agent (pref. stannous chloride) by means of mixing, countercurrent contact, etc.
COPYRIGHT: (C)1979,JPO&Japio
JP11509377A 1977-09-27 1977-09-27 Purification method of polyphenylene ether Expired JPS6034570B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11509377A JPS6034570B2 (en) 1977-09-27 1977-09-27 Purification method of polyphenylene ether

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11509377A JPS6034570B2 (en) 1977-09-27 1977-09-27 Purification method of polyphenylene ether

Publications (2)

Publication Number Publication Date
JPS5448898A true JPS5448898A (en) 1979-04-17
JPS6034570B2 JPS6034570B2 (en) 1985-08-09

Family

ID=14654021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11509377A Expired JPS6034570B2 (en) 1977-09-27 1977-09-27 Purification method of polyphenylene ether

Country Status (1)

Country Link
JP (1) JPS6034570B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636024A (en) * 1986-06-25 1988-01-12 Mitsubishi Petrochem Co Ltd Preparation of polyphenylene ether

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440168U (en) * 1990-08-01 1992-04-06
JPH0440169U (en) * 1990-08-01 1992-04-06
JPH0449670U (en) * 1990-08-31 1992-04-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636024A (en) * 1986-06-25 1988-01-12 Mitsubishi Petrochem Co Ltd Preparation of polyphenylene ether
JPH0346488B2 (en) * 1986-06-25 1991-07-16 Mitsubishi Yuka Kk

Also Published As

Publication number Publication date
JPS6034570B2 (en) 1985-08-09

Similar Documents

Publication Publication Date Title
JPS535295A (en) Preparation of partially hydrolyzed acrylamide polymer
JPS5448898A (en) Purification of polyphenylene ether
JPS5353629A (en) Purification of brominated diphenyl ether
JPS51149883A (en) Hydrophilic gel
JPS5295625A (en) Preparation of sucrose benzoate
JPS5288580A (en) Gas-liquid countercurrent contact apparatus
JPS5340038A (en) Preparation of microhydrogel
JPS5223857A (en) Biological denitrification disposal apparatus
JPS5317787A (en) Filler for high speed liquid chromatography
JPS5289577A (en) Electrodialysis of aqueous salt solution containing dissolved gypsum
JPS543893A (en) Purification of polymeric material-containing liquid
JPS52114480A (en) Aqueous solution of polymer containing aluminum
JPS53123499A (en) Purification of polyether
JPS5345357A (en) Granulation of sodium carboxymethyl cellulose
JPS5259606A (en) Liquid detergent composition
JPS5413468A (en) Gas/liquid contacting method
JPS51126393A (en) Process for regenerating activated carbon
JPS52123987A (en) Removal of nox
JPS5278781A (en) Agent for treating solution of acid or alkali
JPS5250994A (en) Process for producin brium sulfate
JPS51111489A (en) Ion exchange membrane
JPS52149296A (en) Purification of caustic soda aq. solution
JPS5276288A (en) Preparation of precipitate
JPS5357559A (en) Drying apparatus
JPS5721315A (en) Stable solid preparation of cytochrome c and its preparation