EP0237358A2
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EP
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Melt-moldable wholly aromatic polyester
Assignee: Mitsui Chemicals Inc
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Filing: 1987-03-13
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Granted: —
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Expires: 2007-03-13
Abstract
Abstract A melt-moldable wholly aromatic polyester comprising (A) aromatic hydroxycarboxylic acid residues, (B) aromatic diol residues, (C) 4,4'-dihydroxydiphenyl ether residues represented by the following formula and (D) aromatic dicarboxylic acid residues, and a melt-moldable wholly aromatic polyester comprising (A) aromatic hydroxycarboxylic acid residues, (C)' aromatic diol residues represented by the following formula wherein Ar4 represents a group at least 60 mole% of which consists of a group of the following formula (a) or a group of the formula (a) and a group of the following formula (b) and (D) aromatic dicarboxylic acid residues.
Inventors
- 👤 Kunisuke Fukui
- 👤 Masanori Motooka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 01:47
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/60; C08G63/605
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
163 words
A melt-moldable wholly aromatic polyester comprising (A) aromatic hydroxycarboxylic acid residues represented by the following formula (I) wherein Ar l represents a divalent aromatic hydrocarbon group at least 60 mole% of which consists of a p-phenylene group, (B) aromatic diol residues represented by the following formula (II) wherein Ar 2 represents at least one divalent aromatic group selected from p-phenylene and 4,4'-diphenylene groups, (C) 4,4'-dihydroxydiphenyl ether residues represented by the following formula (III) and (D) aromatic dicarboxylic acid residues represented by the following formula (IV) wherein Ar 3 represents a divalent aromatic group at least 60 mole% of which consists of a p-phenylene group, and (E) the proportions of the residues (A), (B), (C) and (D) being 30-80 mole%, 1-20 mole%, 1-32 mole% and 10-35 mole%, respectively, based on the total moles of the residues (A), (B), (C) and (D), provided that the sum of the moles of the residues (B) and (C) is substantially equal to the moles of the residues (D).
Claim 2
Dependent Claim
163 words
A melt-moldable wholly aromatic polyester comprising (A) aromatic hydroxycarboxylic acid residues represented by the following formula (I) wherein Ar l represents a divalent aromatic hydrocarbon group at least 60 mole% of which consists of a p-phenylene group, (B) aromatic diol residues represented by the following formula (II) wherein Ar 2 represents at least one divalent aromatic group selected from p-phenylene and 4,4'-diphenylene groups, (C) 4,4'-dihydroxydiphenyl ether residues represented by the following formula (III) and (D) aromatic dicarboxylic acid residues represented by the following formula (IV) wherein Ar 3 represents a divalent aromatic group at least 60 mole% of which consists of a p-phenylene group, and (E) the proportions of the residues (A), (B), (C) and (D) being 30-80 mole%, 1-20 mole%, 1-32 mole% and 10-35 mole%, respectively, based on the total moles of the residues (A), (B), (C) and (D), provided that the sum of the moles of the residues (B) and (C) is substantially equal to the moles of the residues (D).
Claim 3
Dependent Claim
25 words
A polyester according to claim 1 wherein all of the aromatic hydroxycarboxylic acid residues (A) are those in which Ar l is a p-phenylene group.
Claim 4
Dependent Claim
20 words
A polyester according to claim 1 wherein when A r l is other than p-phenylene it is m-phenylene or 2,6-naphthylene.
Claim 5
Dependent Claim
30 words
4 . A polyester according to claim 1, 2 or 3 wherein all of the aromatic diol residues (B) are those in which A r 2 is a p-phenylene group.
Claim 6
Dependent Claim
27 words
A polyester according to claim 1, 2 or 3 wherein all of the aromatic diol residues (B) are those in which Ar 2 is a 4,4'-diphenylene group.
Claim 7
Dependent Claim
53 words
A polyester according to claim 1, 2 or 3 wherein up to 40 mole% of the sum of the aromatic diol residues of formula ( II ) and the 4,4'-dihydroxydiphenyl ether residues of formula ( III ) is replaced by other diol residues wherein A r 2 is selected from m-phenylene, 3,4'-diphenylene, 2,6-naphthylene,
Claim 8
Dependent Claim
29 words
A polyester according to any one of the preceding claims wherein all of the aromatic dicarboxylic acid residues (D) are those in which Ar 3 is a p-phenylene group.
Claim 9
Dependent Claim
28 words
A polyester according to any one of claims 1 to 6 wherein when A r 3 is other than p-phenylene it is selected from m-phenylene, 2,6-naphthylene and 2,7-naphthylene.
Claim 10
Dependent Claim
55 words
A polyester according to any one of the preceding claims wherein the proportion of the residues (A), (B), (C) and ( D ) are 40 to 70 mole%, 3 to 18 mole%, 3 to 24 mole% and 15 to 30 mole%, respectively based on the total moles of the residues (A), (B), (C) and (D).
Claim 11
Dependent Claim
33 words
A polyester according to claim 9 wherein the proportion of the aromatic diol residues (B) is 3 to 16 mole% based on the total moles of the residues (A), (B), (C) and (D).
Claim 12
Dependent Claim
42 words
A polyester according to any one of the preceding claims which comprises (A-1) p-hydroxybenzoic acid residues of formula (I)-1 (B-1) hydroquinone residues of formula (II)-1 ( C ) 4,4'-dihydroxydiphenyl ether residues of formula (III) and (D-l) terephthalic acid residues of formula (IV)-1
Claim 13
Dependent Claim
25 words
A polyester according to claim 11 which comprises aromatic diol residues of formula (II-2) in place of part of the hydroquinone residues of formula (11-1).
Claim 14
Dependent Claim
43 words
A wholly aromatic polyester which has a melt viscosity, measured at a shear speed of 100 sec -1 and a temperature 30°C higher than the melting point of the polyester, of 10 to 10 6 Pa s (10 2 to 10 7 poises).
Claim 15
Dependent Claim
43 words
A wholly aromatic polyester which has a melt viscosity, measured at a shear speed of 100 sec -1 and a temperature 30°C higher than the melting point of the polyester, of 10 to 10 6 Pa s (10 2 to 10 7 poises).
Claim 16
Dependent Claim
154 words
A melt-moldable wholly aromatic polyester comprising (A) aromatic hydroxycarboxylic acid residues of formula (I) wherein Ar 1 represents a divalent aromatic hydrocarbon group at least 60 mole% of which consists of a p-phenylene group, (C)' aromatic diol residues of formula (V) wherein Ar4 represents a group at least 60 mole% of which consists of a group of formula (a) or a group of the formula (a) and a group of formula (b) (D) aromatic dicarboxylic acid residues of formula ([v) wherein A r 3 represents a divalent aromatic group at least 60 mole% of which consists of a p-phenylene group, and (E)' the proportions of the residues (A), (C)' and ( D ) are 30-80 mole%, 10-35 mole%, and 10-35 mole%, respectively based on the total moles of the residues (A), (C)' and (D), provided that the moles of the residues (C)' are substantially equal to the moels of the residues ( D ).
Claim 17
Dependent Claim
154 words
A melt-moldable wholly aromatic polyester comprising (A) aromatic hydroxycarboxylic acid residues of formula (I) wherein Ar 1 represents a divalent aromatic hydrocarbon group at least 60 mole% of which consists of a p-phenylene group, (C)' aromatic diol residues of formula (V) wherein Ar4 represents a group at least 60 mole% of which consists of a group of formula (a) or a group of the formula (a) and a group of formula (b) (D) aromatic dicarboxylic acid residues of formula ([v) wherein A r 3 represents a divalent aromatic group at least 60 mole% of which consists of a p-phenylene group, and (E)' the proportions of the residues (A), (C)' and ( D ) are 30-80 mole%, 10-35 mole%, and 10-35 mole%, respectively based on the total moles of the residues (A), (C)' and (D), provided that the moles of the residues (C)' are substantially equal to the moels of the residues ( D ).
Claim 18
Dependent Claim
18 words
A polyester according to claim 14 wherein all of the aromatic diol residues (C)' are of formula (a).
Claim 19
Dependent Claim
25 words
A polyester according to claim 14 wherein the aromatic diol residues (C)' are a mixture of residues of formula (a) and residues of formula (b).
Claim 20
Dependent Claim
30 words
A polyester accordig to claim 14 wherein in formula (V), the mole ratio of the group of formula (a) to the group of formula (b) is from 100:0 to 10:90.
Claim 21
Dependent Claim
50 words
A polyester according to any one of claims 4 to 17 which has a melt viscosity, measured at a shear speed of 100 sec -1 and a temperature 30°C higher than the melting point of the polyester, of 10 to 10 6 Pa s (10 2 to 10 7 poises).
References Cited (Backward Citations)
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