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US4661581A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for producing aromatic polyether ketones and polythioether ketones

Assignee: Mitsubishi Chemical Corp
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Filing: 1984-10-01
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Granted: 1987-04-28
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Expires: 2004-10-01
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Abstract

Abstract A process for producing aromatic polyether ketones and polythioether ketones, which comprises reacting aromatic ethers or thioethers represented by the general formula: <IMAGE> where each of R1 to R12 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 Nozawa
  • 👤 Michio Nakata

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 05:18
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: 16
Claim 1
Independent Claim 156 words
A process for producing an aromatic polyether ketone, said method comprising reacting, at a temperature of from -10° to 300° C., an aromatic ether of the formula: ##STR9## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether of formula I in 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of said ether of formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of said ether of formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table.
Claim 2
Dependent Claim 156 words
A process for producing an aromatic polyether ketone, said method comprising reacting, at a temperature of from -10° to 300° C., an aromatic ether of the formula: ##STR9## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether of formula I in 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of said ether of formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of said ether of formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table.
Claim 3
Dependent Claim 194 words
A process for producing an aromatic polyether ketone, said method comprising reacting, at a temperature from -10° to 300° C., an aromatic ether of the formula: ##STR10## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether of formula I and 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of said ether of formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of the said ether of formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table, and obtaining an aromatic polyether ketone having an inherent viscosity, η inh , of at least 0.3 dl g -1 as measured at 30° C. in 97% sulfuric acid at a concentration of 1.0 g dl -1 .
Claim 4
Dependent Claim 194 words
A process for producing an aromatic polyether ketone, said method comprising reacting, at a temperature from -10° to 300° C., an aromatic ether of the formula: ##STR10## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether of formula I and 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of said ether of formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of the said ether of formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table, and obtaining an aromatic polyether ketone having an inherent viscosity, η inh , of at least 0.3 dl g -1 as measured at 30° C. in 97% sulfuric acid at a concentration of 1.0 g dl -1 .
Claim 5
Dependent Claim 195 words
A process for producing an aromatic polyether ketone, said method comprising reacting, at a temperature from -10° to 300° C., an aromatic ether of the formula: ##STR11## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether of formula I in 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of the said ether of formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of the said ether of formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table, and obtaining an aromatic polyether ketone having an inherent viscosity, η inh , of at least 0.5 dl g -1 as measured at 30° C. in 97% sulfuric acid at a concentration of 1.0 g dl -1 .
Claim 6
Dependent Claim 195 words
A process for producing an aromatic polyether ketone, said method comprising reacting, at a temperature from -10° to 300° C., an aromatic ether of the formula: ##STR11## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether of formula I in 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of the said ether of formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of the said ether of formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table, and obtaining an aromatic polyether ketone having an inherent viscosity, η inh , of at least 0.5 dl g -1 as measured at 30° C. in 97% sulfuric acid at a concentration of 1.0 g dl -1 .
Claim 7
Dependent Claim 90 words
A process for producing an aromatic polyether ketone, comprising reacting an aromatic ehter of the formula: ##STR12## wherein 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, with phosgene in an aprotic solvent having a dielectric constant lower than 20 and a dipole moment lower than 3.0, in the presence of an anhydrous halide of a metal of Group III of the Periodic Table.
Claim 8
Dependent Claim 90 words
A process for producing an aromatic polyether ketone, comprising reacting an aromatic ehter of the formula: ##STR12## wherein 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, with phosgene in an aprotic solvent having a dielectric constant lower than 20 and a dipole moment lower than 3.0, in the presence of an anhydrous halide of a metal of Group III of the Periodic Table.
Claim 9
Dependent Claim 11 words
The process of claim 4, wherein n is 0 to 1.
Claim 10
Dependent Claim 24 words
The process of claim 4, wherein the said anhydrous halide of a metal of Group III of the Periodic Table is an aluminum trihalide.
Claim 11
Dependent Claim 23 words
The process of claim 5, wherein the said solvent has a dielectric constant lower than 10 and a dipole moment lower than 2.0.
Claim 12
Dependent Claim 12 words
The process of claim 5, wherein the said solvent is carbon disulfide.
Claim 13
Dependent Claim 196 words
An aromatic polyether ketone of the following formula (III): ##STR13## wherein 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, said polyether ketone being obtained by reacting, at a temperature of from -10° to 300° C., an aromatic ether of the formula: ##STR14## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether formula I in 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of the said ether formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of the said ether formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table.
Claim 14
Dependent Claim 196 words
An aromatic polyether ketone of the following formula (III): ##STR13## wherein 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, said polyether ketone being obtained by reacting, at a temperature of from -10° to 300° C., an aromatic ether of the formula: ##STR14## wherein each of R 1 to R 12 is independently 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, with 1 to 500 moles of phosgene per mole of the said ether formula I in 0.1 to 500 parts by weight of an aprotic solvent per 1 part by weight of the said ether formula I, said solvent having a dielectric constant of less than 20 and a dipole moment of less than 3.0, in the presence of 0.01 to 100 moles of a catalyst per mole of the said ether formula I, said catalyst being an anhydrous halide of a metal of Group III of the Periodic Table.
Claim 15
Dependent Claim 43 words
The aromatic polyether ketone of claim 9, wherein the said aromatic polyether ketone hasan inherent viscosity, η inh , of at least 0.3 g -1 as measured at 30° C. in 97% sulfuric acid at a concentration of 1.0 g dl -1 .
Claim 16
Dependent Claim 44 words
The polyether ketone of claim 9, wherein the said aromatic polyether ketone has an inherent viscosity, η inh , of at least 0.5 dl g -1 as measured at 30° C. in 97% sulfuric acid at a concentration of 1.0 g dl -1 .

References Cited (Backward Citations)

US3065205A Cited
GB971227A Cited
GB1164817A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-04-27 1990-10-27 1991-04-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-04-27 1994-10-27 1995-04-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-04-27 1998-10-27 1999-04-28 $7700.00 Window Closed / Lapsed

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