US4668744A
Expired / Lapsed
US
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Novel poly(aryl ether ketone) polyester block copolymers
Assignee: BP Corp North America Inc
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Filing: 1985-10-15
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Granted: 1987-05-26
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Expires: 2005-10-15
Abstract
Abstract Described herein are novel block copolymers wherein one block is a poly(aryl ether ketone) oligomer and the other block is a liquid crystalline polyester oligomer. Processes for the preparation of the subject copolymers are also described. The novel block copolymers display excellent mechanical properties, good high temperatures stability and excellent solvent and chemical resistance.
Inventors
- 👤 Markus Matzner
- 👤 Donald M. Papuga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:50
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/127; C08G63/00; C08G63/66
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
150 words
A process for preparing a block copolymer comprising a poly(aryl ether ketone) oligomer block and a liquid crystalline polyester block which comprises the following steps: (a) reacting the dihydroxy terminated oligomer HOE 1 (E 2 COE 3 O) n E 4 OH with an anhydride of a lower carboxylic acid (RCO) 2 O to form the diester RCOOE 1 (E 2 COE 3 O) n E 4 OCOR, (b) reacting the product from (a) with the diester RCOOAr 6 OCOR and the dicarboxylic acid HOOCAr 7 COOH under acidolysis conditions, and (c) recovering the block copolymer, and wherein E 1 , E 2 , E 3 and E 4 are divalent aromatic radicals, R is C 1 to C 4 alkyl or phenyl, n is such that the molecular weight of the poly(aryl ether ketone) block is at least 500, and Ar 6 and Ar 7 are divalent aromatic radicals.
Claim 2
Dependent Claim
150 words
A process for preparing a block copolymer comprising a poly(aryl ether ketone) oligomer block and a liquid crystalline polyester block which comprises the following steps: (a) reacting the dihydroxy terminated oligomer HOE 1 (E 2 COE 3 O) n E 4 OH with an anhydride of a lower carboxylic acid (RCO) 2 O to form the diester RCOOE 1 (E 2 COE 3 O) n E 4 OCOR, (b) reacting the product from (a) with the diester RCOOAr 6 OCOR and the dicarboxylic acid HOOCAr 7 COOH under acidolysis conditions, and (c) recovering the block copolymer, and wherein E 1 , E 2 , E 3 and E 4 are divalent aromatic radicals, R is C 1 to C 4 alkyl or phenyl, n is such that the molecular weight of the poly(aryl ether ketone) block is at least 500, and Ar 6 and Ar 7 are divalent aromatic radicals.
Claim 3
Dependent Claim
11 words
A process as defined in claim 1 wherein R is methyl.
Claim 4
Dependent Claim
18 words
A process as defined in claim 1 wherein steps (a) and (b) are preformed in a one-pot operation.
Claim 5
Dependent Claim
23 words
A process as defined in claim 1 wherein step (b) is carreid out at a temperature of from about 200° to 350° C.
Claim 6
Dependent Claim
18 words
A process as defined in claim 1 wherein the molecular weight is advanced by further solid state polymerization.
Claim 7
Dependent Claim
20 words
A process as defined in claim 1 wherein step (b) is carried out in the presence of a processing aid.
Claim 8
Dependent Claim
19 words
A process as defined in claim 1 wherein step (b) is carried out in the presence of a catalyst.
Claim 9
Dependent Claim
42 words
A process as defined in claim 7 wherein the catalyst is selected from dialkyl tin oxide, diaryl tin oxide, titanium dioxide, antimony trioxide, alkoxy titanium silicates, titanium alkoxides, alkali and alkaline earth metal salts of carboxylic acids, Lewis acids, and hydrogen halides.
Claim 10
Dependent Claim
30 words
A process as defined in claim 8 wherein the catalyst is used in amounts of from about 0.001 to about 1 percent by weight based upon the total monomer weight.
Claim 11
Dependent Claim
55 words
A process as defined in claim 1 wherein the lower carboxylic acid diester RCOOE 1 (E 2 COE 3 O) n E 4 OCOR 1 is prepared by heating the dihydroxy compound HOE 1 (E 2 COE 3 O) n E 4 OH with the anhydride (RCO) 2 O in the presence of a cosolvent.
Claim 12
Dependent Claim
26 words
A process as defined in claim 10 wherein the cosolvent is selected from diphenyl ether, substituted diphenyl ether, chlorinated aromatic hydrocarbons, and alkoxy-substituted (chlorinated) aromatic hydrocarbons.
Claim 13
Dependent Claim
123 words
A process for preparing a block copolymer comprising a poly(aryl ether ketone) block and a liquid crystalline polyester block which comprises the following steps: (a) reacting the dihydroxy-terminated oligomer HOE 1 (E 2 COE 3 O) n E 4 OH with the diphenol HOAr 6 OH and the diaryl ester Ar 8 OCOAr 7 COOAr 8 at a temperature of from about 200° to 350° C., and (b) recovering the block copolymer, and wherein E 1 , E 2 , E 3 and E 4 are divalent aromatic radicals, n is such that the molecular weight of the poly(aryl ether ketone) block is at least 500, Ar 6 and Ar 7 are divalent aromatic radicals and Ar 8 is a monovalent aromatic radical.
Claim 14
Dependent Claim
123 words
A process for preparing a block copolymer comprising a poly(aryl ether ketone) block and a liquid crystalline polyester block which comprises the following steps: (a) reacting the dihydroxy-terminated oligomer HOE 1 (E 2 COE 3 O) n E 4 OH with the diphenol HOAr 6 OH and the diaryl ester Ar 8 OCOAr 7 COOAr 8 at a temperature of from about 200° to 350° C., and (b) recovering the block copolymer, and wherein E 1 , E 2 , E 3 and E 4 are divalent aromatic radicals, n is such that the molecular weight of the poly(aryl ether ketone) block is at least 500, Ar 6 and Ar 7 are divalent aromatic radicals and Ar 8 is a monovalent aromatic radical.
Claim 15
Dependent Claim
16 words
A process as defined in claim 12 wherein the process is performed in a one-pot operation.
Claim 16
Dependent Claim
12 words
A process as defined in claim 12 wherein Ar 8 is phenyl.
Claim 17
Dependent Claim
17 words
A process as defined in claim 12 wherein the molecular weight is advanced by solid state polymerization.
Claim 18
Dependent Claim
17 words
A process as defined in claim 12 which is carried out in the presence of a catalyst.
Claim 19
Dependent Claim
15 words
A process as defined in claim 16 wherein the catalyst is an alkali metal phenoxide.
Claim 20
Dependent Claim
18 words
A process as defined in claim 12 which is carried out in the presence of a processing aid.
Claim 21
Dependent Claim
103 words
A process for preparing a block copolymer comprising a poly(aryl ether ketone) oligomer block and a liquid crystalline polyester block which comprises the following steps: (a) reacting the dihydroxy-terminated oligomer HOE 1 (E 2 COE 3 O) n E 4 OH with the diphenol HOAr 6 OH and the diacid chloride ClCOAr 7 COCl, and (b) recovering the block copolymer, and wherein E 1 , E 2 , E 3 and E 4 are divalent aromatic radicals, n is such that the molecular weight of the poly(aryl ether ketone) is at least 500 and Ar 6 and Ar 7 are divalent aromatic radicals.
Claim 22
Dependent Claim
103 words
A process for preparing a block copolymer comprising a poly(aryl ether ketone) oligomer block and a liquid crystalline polyester block which comprises the following steps: (a) reacting the dihydroxy-terminated oligomer HOE 1 (E 2 COE 3 O) n E 4 OH with the diphenol HOAr 6 OH and the diacid chloride ClCOAr 7 COCl, and (b) recovering the block copolymer, and wherein E 1 , E 2 , E 3 and E 4 are divalent aromatic radicals, n is such that the molecular weight of the poly(aryl ether ketone) is at least 500 and Ar 6 and Ar 7 are divalent aromatic radicals.
Claim 23
Dependent Claim
15 words
A process as defined in claim 19 which is carried out by an interfacial method.
Claim 24
Dependent Claim
16 words
A process as defined in claim 19 which is carried out in a high boiling solvent.
Claim 25
Dependent Claim
27 words
A process as defined in claim 21 wherein the high boiling solvent is selected from chlorinated aromatic hydrocarbons, chlorinated diphenyls, diphenyl esters, chlorinated naphthalenes or nonchlorinated aromatics.
Claim 26
Dependent Claim
17 words
A process as defined in claim 19 which is carried out in the presence of a catalyst.
Claim 27
Dependent Claim
18 words
A process as defined in claim 23 wherein the catalyst is metallic magnesium or a tetravalent titanium ester.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |