JPS5513702A - Preparation of polyoxysulfone - Google Patents
Preparation of polyoxysulfoneInfo
- Publication number
- JPS5513702A JPS5513702A JP7803278A JP7803278A JPS5513702A JP S5513702 A JPS5513702 A JP S5513702A JP 7803278 A JP7803278 A JP 7803278A JP 7803278 A JP7803278 A JP 7803278A JP S5513702 A JPS5513702 A JP S5513702A
- Authority
- JP
- Japan
- Prior art keywords
- nitrite
- resistant
- reacting
- alkali
- polyoxysulfone
- 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
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
PURPOSE: To prepare the title compound useful as a heat-resistant, oxidation-resistant resin and a heat-resistant, insulating adhesive, by reacting 4,4'-dihalodiphenylsulfone with an alkali carbonate in the presence of nitrite ions in a polar solvent.
CONSTITUTION: Polyoxysulfone of formula (X, Y are halogen, OH, NO2) is prepared by reacting (A) 4,4'-dihalopheylsulfone, e.g. 4,4'-dichlorodiphenylsulfone, with (B) an alkali carbonate, e.g. sodium carbonate, in a polar solvent such as dimethylsulfoxide, while adding (C) a compound containing nitrite ion, e.g. sodium nitrite, to the reaction system. The addition of nitrite ions can be effected not only by adding an alkali(ne earth) metal nitrite, but also by introducing N2O3 gas into the system or by adding a compound which produces nitrite ions during the reaction, e.g. 4,4'-dinitrodiphenylsulfone, etc. The molar ratio of (C) to (A) is 0.05W1 to 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7803278A JPS5513702A (en) | 1978-06-29 | 1978-06-29 | Preparation of polyoxysulfone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7803278A JPS5513702A (en) | 1978-06-29 | 1978-06-29 | Preparation of polyoxysulfone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5513702A true JPS5513702A (en) | 1980-01-30 |
Family
ID=13650463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7803278A Pending JPS5513702A (en) | 1978-06-29 | 1978-06-29 | Preparation of polyoxysulfone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5513702A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4789722A (en) * | 1986-01-30 | 1988-12-06 | Hercules Incorporated | Polyarylene polyether made using mixed base system |
JPS6470532A (en) * | 1987-09-11 | 1989-03-16 | Daicel Chem | Polyether sulfone |
JPH01311126A (en) * | 1988-06-09 | 1989-12-15 | Daicel Chem Ind Ltd | Aromatic polyether sulfone |
US4931530A (en) * | 1986-11-20 | 1990-06-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Novel aromatic polyether and a process for producing an ether |
-
1978
- 1978-06-29 JP JP7803278A patent/JPS5513702A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4789722A (en) * | 1986-01-30 | 1988-12-06 | Hercules Incorporated | Polyarylene polyether made using mixed base system |
US4931530A (en) * | 1986-11-20 | 1990-06-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Novel aromatic polyether and a process for producing an ether |
JPS6470532A (en) * | 1987-09-11 | 1989-03-16 | Daicel Chem | Polyether sulfone |
JPH01311126A (en) * | 1988-06-09 | 1989-12-15 | Daicel Chem Ind Ltd | Aromatic polyether sulfone |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS543900A (en) | Novel alpha-glycol resin composition and its preparation | |
JPS5513702A (en) | Preparation of polyoxysulfone | |
JPS5342298A (en) | Preparation of flame-retardant resin composition | |
JPS5379451A (en) | Circurator | |
JPS524592A (en) | Preparation of flame retardant copolyester | |
JPS51130457A (en) | Preparation of flame retardant polyamide composition | |
JPS51151746A (en) | Foamable flame retardant patty compound | |
JPS5419663A (en) | Forming method of insulating films | |
JPS543081A (en) | Preparation of organo-phosphorus compound | |
JPS5350286A (en) | Preparatin of sodium polyacrylate powder | |
JPS545958A (en) | Prparation of vitamine k's | |
JPS5742643A (en) | 6,10,14,18-tetramethyl-5,9,13,17-nonadecatetraene-2-ol | |
JPS5326898A (en) | Anti-corrosive, flame-retardant polyurethane foam | |
JPS51147500A (en) | Method of producing alkali silicate solution with high molar ratio | |
JPS534885A (en) | Submarine coaxial repeating installation | |
JPS5226551A (en) | Improvement of heat stability of polyvinyl chloride | |
JPS5429341A (en) | Fireproofing paint | |
JPS56122376A (en) | Bis-crown ether derivative, its preparation, and selective ion extracting agent containing the same | |
JPS52109598A (en) | Preparation of polyisocyanurate foams with low fuming properties | |
JPS5422600A (en) | Electrical insulating oil | |
JPS5239999A (en) | Method for using by-product aluminum hydroxide as fire-retarding agent | |
JPS5299762A (en) | Electric field radiation type cathode | |
JPS5277498A (en) | Foaming fire-proof compound | |
JPS53126051A (en) | Antitracking composition | |
JPS52116432A (en) | Preparation of 3-alkoxybenzanilides |