EP0135938A2
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EP
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Process for producing aromatic polyether ketones and polythioether ketones
Assignee: Mitsubishi Chemical Corp
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Filing: 1984-09-27
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Granted: —
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Expires: 2004-09-27
Abstract
Abstract A process for producing aromatic polyether ketones and polythioether ketones, which comprises reacting aromatic ethers or thioethers represented by the general formula: where each of R 1 to R 12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, n is an integer of 0 to 5, and X is an oxygen atom or a sulfur atom, with phosgene in aprotic solvent having a dielectric constant of lower than 20 and a dipole moment of lower than 3.0 in the presence of anhydrous halides of metals of Group III in the periodic table as a catalyst.
Inventors
- 👤 Seiichi C/O Mitsubishi Chemical Ind. Ltd. Nozawa
- 👤 Michio C/O Mitsubishi Chemical Ind. Ltd. Nakata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 04:55
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/127; C08G67/00; C08G75/00; C08G75/02; C08G75/0204; C08G75/0236; C08G75/024
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A process for producing aromatic polyether ketones and polythioether ketones, which comprises reacting aromatic ethers or thioethers represented by the general formula: where each of R 1 to R 12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, n is an integer of 0 to 5, and X is an oxygen atom or a sulfur atom, with phosgene in aprotic solvent having a dielectric constant of lower than 20 and a dipole moment of lower than 3.0 in the presence of anhydrous halides of metals of Group III in the periodic table as a catalyst.
Claim 2
Dependent Claim
101 words
A process for producing aromatic polyether ketones and polythioether ketones, which comprises reacting aromatic ethers or thioethers represented by the general formula: where each of R 1 to R 12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, n is an integer of 0 to 5, and X is an oxygen atom or a sulfur atom, with phosgene in aprotic solvent having a dielectric constant of lower than 20 and a dipole moment of lower than 3.0 in the presence of anhydrous halides of metals of Group III in the periodic table as a catalyst.
Claim 3
Dependent Claim
12 words
The process according to Claim 1, wherein X is an oxygen atom.
Claim 4
Dependent Claim
12 words
The process according to Claim 1, wherein X is a sulfur atom.
Claim 5
Dependent Claim
18 words
The process according to Claim 1, wherein n is 0 or 1, and X is an oxygen atom.
Claim 6
Dependent Claim
12 words
The process according to Claim 1, wherein the catalyst is aluminum trihalides.
Claim 7
Dependent Claim
25 words
The process according to Claim 1, wherein the solvent has a dielectric constant of lower than 10 and a dipole moment of lower than 2.0.
Claim 8
Dependent Claim
12 words
The process according to Claim 1, wherein the solvent is carbon disulfide.
Claim 9
Dependent Claim
69 words
An aromatic thioether ketone having a structural unit represented by the general formula: where each of R 1 to R 12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, and n is an integer of 0 to 5, and having η inh of at least 0.05 dl/g as measured at 30 9 C in 97% sulfuric acid at a concentration of 1.0 g/dl.
Claim 10
Dependent Claim
69 words
An aromatic thioether ketone having a structural unit represented by the general formula: where each of R 1 to R 12 is a hydrogen atom, a halogen atom, a hydrocarbon group or an alkoxy group, and n is an integer of 0 to 5, and having η inh of at least 0.05 dl/g as measured at 30 9 C in 97% sulfuric acid at a concentration of 1.0 g/dl.
References Cited (Backward Citations)
No citation records indexed.
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