EP0184458A2
Expired / Lapsed
EP
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Thermoplastic aromatic polyetherketones
Assignee: Imperial Chemical Industries Ltd
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Filing: 1985-12-05
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Granted: —
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Expires: 2005-12-05
Abstract
Abstract Aromatic polyetherketones containing the repeat units:- and in the relative molar proportions I : II of 95 : 5 to 60 : 40, preferably 90 : 10 to 60 : 40. The polymer typically has a melt viscosity of at least 0.06 kN.s.m. -2 preferably at least 0.1 kN.s.m. -2 . Preferred polymers are tough. The polymers may be made by condensation of hydroquinone, 4,4'-dihydroxydiphenyl and 4,4,' - difluorobenzophenone in the presence of an alkali metal carbonate or bicarbonate and of an aromatic sulphone solvent, eg diphenylsulphone. Polycondensation is effected at 150-400°C. The polymers are very useful for wire coating.
Inventors
- 👤 Philip Anthony Staniland
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:29
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/40; C08G65/4012; C08G65/4093
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
36 words
A polymeric material having the repeating units I and II and whezein the repeating units I and II are in the relative molar proportions I:II of from 95:5 to 60:40, and Ph is a phenylene group.
Claim 2
Dependent Claim
36 words
A polymeric material having the repeating units I and II and whezein the repeating units I and II are in the relative molar proportions I:II of from 95:5 to 60:40, and Ph is a phenylene group.
Claim 3
Dependent Claim
16 words
A polymeric material as claimed in claim 1 wherein each Ph group is a para-phenylene group.
Claim 4
Dependent Claim
29 words
A polymeric material as claimed in either claim 1 or claim 2 having a melt viscosity, measured at a temperature of 400°C, of at least 0.06 kN.s.m -2 .
Claim 5
Dependent Claim
38 words
A polymeric material as claimed in any one of claims 1 to 3 which is a tough, crystalline material and which contains the repeating units I and II in the molar proportions I:II of from 90:10 to 70:30.
Claim 6
Dependent Claim
51 words
A process for the production of a polyetherketone which process comprises polycondensing a mixture of at least one dihydroxybenzene compound and at least one dihydroxybiphenyl compound in the molar proportions of 95:5 to 60:40 with at least one dihalobenzophenone in the presence of at least one alkali metal carbonate or bicarbonate.
Claim 7
Dependent Claim
51 words
A process for the production of a polyetherketone which process comprises polycondensing a mixture of at least one dihydroxybenzene compound and at least one dihydroxybiphenyl compound in the molar proportions of 95:5 to 60:40 with at least one dihalobenzophenone in the presence of at least one alkali metal carbonate or bicarbonate.
Claim 8
Dependent Claim
17 words
A process as claimed in claim 5 wherein a mixture of hydroquinone; 4,4-dihydroxybiphenyl and 4,4'-difluorobenzophenone is polycondensed.
Claim 9
Dependent Claim
87 words
A process as claimed in either claim 5 or claim 6 which is effected in the presence of a solvent having the formula at a temperature within the range 150 to 400°C, the final temperature during the polycondensation being sufficiently high to maintain the final polymer in solution, wherein Y is a direct link, an oxygen atom or two hydrogen atoms (one attached to each benzene ring); and. Z, and Z' which may be the same or different, are hydrogen atoms, alkyl, alkaryl, aralkyl or aryl groups.
Claim 10
Dependent Claim
31 words
A process as claimed in any one of claims 5 to 7 wherein the proportions of the bisphenol components are substantially equimolar with the proportions of the at least one dihalobenzophenone.
Claim 11
Dependent Claim
28 words
A process as claimed in any one of claims 5 to 8 wherein the sole use of one, or both, of sodium carbonate and sodium bicarbonte is excluded.
Claim 12
Dependent Claim
68 words
A fabricated structure comprising a tough crystalline thermoplastic polyetherketone containing the repeating units I and II and wherein the repeating units I and II are in the relative molar proportions I : II of from 95 : 5 to 60 : 40, said polymer having a melt viscosity, measured at a temperature of 400°C, of at least 0.06 kN.s.m. -2 , wherein / Ph is a phenylene group.
Claim 13
Dependent Claim
68 words
A fabricated structure comprising a tough crystalline thermoplastic polyetherketone containing the repeating units I and II and wherein the repeating units I and II are in the relative molar proportions I : II of from 95 : 5 to 60 : 40, said polymer having a melt viscosity, measured at a temperature of 400°C, of at least 0.06 kN.s.m. -2 , wherein / Ph is a phenylene group.
Claim 14
Dependent Claim
14 words
A fabricated structure as claimed in claim 10 in the form of electrical insulation.
Claim 15
Dependent Claim
55 words
A process for the production of a polyetherketone which process comprises polycondensing a mixture of at least one dihydroxybenzene compound and at least one dihydroxybiphenyl compound in the molar proportions of 95 : 5 to 60 : 40 with at least one dihalobenzophenone in the presence of at least one alkali metal carbonate or bicarbonate.
Claim 16
Dependent Claim
55 words
A process for the production of a polyetherketone which process comprises polycondensing a mixture of at least one dihydroxybenzene compound and at least one dihydroxybiphenyl compound in the molar proportions of 95 : 5 to 60 : 40 with at least one dihalobenzophenone in the presence of at least one alkali metal carbonate or bicarbonate.
Claim 17
Dependent Claim
27 words
A process as claimed in claim 1 wherein the at least one dihalobenzophenone is at least 50% molar of 4,4'-difluorobenzophenone any remaining dihalobenzophenone being 4-chloro-4'-fluorobenzophenone and/or 4,4'-dichloro-benzophenone.
Claim 18
Dependent Claim
21 words
A process as claimed in either claim 1 or claim 2 wherein a mixture of hydroquinone; 4,4-dihydroxybiphenyl and 4,4'-difluorobenzophenone is polycondensed.
Claim 19
Dependent Claim
28 words
A process as claimed in any one of claims 1 to 3 wherein the sole use of one, or both, of sodium carbonate and sodium bicarbonate is excluded.
Claim 20
Dependent Claim
60 words
A process as claimed in claims 1 to 4 which is effected in the presence of a solvent having the formula wherein Y is a direct link, an oxygen atom or two hydrogen atoms (one attached to each benzene ring); and Z and Z' which may be the same or different are hydrogen atoms, alkyl, alkaryl, aralkyl or aryl groups
Claim 21
Dependent Claim
13 words
A process as claimed in claim 5 wherein the solvent used is diphenylsulphone.
Claim 22
Dependent Claim
31 words
A process as claimed in any one of claims 1 to 6 wherein the proportions of the bisphenol components are substantially equimolar with the proportions of the at least one dihalide.
Claim 23
Dependent Claim
41 words
A process as claimed in any one of claims 1 to 7 which is effected at a temperature within the range 150°C to 400°C, the final temperature during the polycondensation being sufficiently high to maintain the final polymer in solution .
Claim 24
Dependent Claim
44 words
A process as claimed in any one of claims I to 8 wherein the at least one alkali metal carbonate or bicarbonate is present in au amount such that there are at least 2 gram atoms of alkali metal per mole of bisphenol component.
Claim 25
Dependent Claim
72 words
A process as claimed in any one of claim 1 to 9 wherein the at least one alkali metal carbonate or bicarbonate is a mixture of sodium carbonate or bicarbonate with a carbonate or bicarbonate of an alkali metal of higher atomic number, the amount of higher alkali metal carbonate or bicarbonate being such that there are 0.001 to 0.2 gram atoms of the higher alkali metal per gram atom of sodium.
Claim 26
Dependent Claim
77 words
A fabricated structure which is a wire or cable having a coating formed from a tough crystalline thermoplastic polyetherketone containing the repeating units I and II and wherein the repeating units I and II are in the relative molar proportions I : II of from 95 : 5 to 60 : 40, said polymer having a melt viscosity, measured at a temperature of 400°C, of at least 0.06 kN.s.m. -2 , wherein Ph is a phenylene group.
Claim 27
Dependent Claim
77 words
A fabricated structure which is a wire or cable having a coating formed from a tough crystalline thermoplastic polyetherketone containing the repeating units I and II and wherein the repeating units I and II are in the relative molar proportions I : II of from 95 : 5 to 60 : 40, said polymer having a melt viscosity, measured at a temperature of 400°C, of at least 0.06 kN.s.m. -2 , wherein Ph is a phenylene group.
References Cited (Backward Citations)
No citation records indexed.
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