JPH0212974B2 - - Google Patents
Info
- Publication number
- JPH0212974B2 JPH0212974B2 JP55150004A JP15000480A JPH0212974B2 JP H0212974 B2 JPH0212974 B2 JP H0212974B2 JP 55150004 A JP55150004 A JP 55150004A JP 15000480 A JP15000480 A JP 15000480A JP H0212974 B2 JPH0212974 B2 JP H0212974B2
- Authority
- JP
- Japan
- Prior art keywords
- formula
- moles
- polymer
- terephthalic acid
- bisphenols
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 38
- 229920000642 polymer Polymers 0.000 claims description 38
- 229930185605 Bisphenol Natural products 0.000 claims description 24
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 claims description 19
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 claims description 14
- -1 alkali metal salt Chemical class 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 239000003444 phase transfer catalyst Substances 0.000 claims description 12
- 229920000728 polyester Polymers 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims description 9
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 6
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 150000003983 crown ethers Chemical group 0.000 claims description 4
- 150000004714 phosphonium salts Chemical group 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 18
- 238000002844 melting Methods 0.000 description 13
- 230000008018 melting Effects 0.000 description 13
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- UBOXGVDOUJQMTN-UHFFFAOYSA-N 1,1,2-trichloroethane Chemical compound ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 239000012044 organic layer Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 3
- YSSSPARMOAYJTE-UHFFFAOYSA-N dibenzo-18-crown-6 Chemical compound O1CCOCCOC2=CC=CC=C2OCCOCCOC2=CC=CC=C21 YSSSPARMOAYJTE-UHFFFAOYSA-N 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 150000008282 halocarbons Chemical class 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000006276 transfer reaction Methods 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- HTZCNXWZYVXIMZ-UHFFFAOYSA-M benzyl(triethyl)azanium;chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC1=CC=CC=C1 HTZCNXWZYVXIMZ-UHFFFAOYSA-M 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- GKQHIYSTBXDYNQ-UHFFFAOYSA-M 1-dodecylpyridin-1-ium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+]1=CC=CC=C1 GKQHIYSTBXDYNQ-UHFFFAOYSA-M 0.000 description 1
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 1
- AZZWZMUXHALBCQ-UHFFFAOYSA-N 4-[(4-hydroxy-3,5-dimethylphenyl)methyl]-2,6-dimethylphenol Chemical compound CC1=C(O)C(C)=CC(CC=2C=C(C)C(O)=C(C)C=2)=C1 AZZWZMUXHALBCQ-UHFFFAOYSA-N 0.000 description 1
- 206010004966 Bite Diseases 0.000 description 1
- 101100402127 Escherichia coli (strain K12) moaA gene Proteins 0.000 description 1
- 238000012696 Interfacial polycondensation Methods 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229920005603 alternating copolymer Polymers 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- VJGNLOIQCWLBJR-UHFFFAOYSA-M benzyl(tributyl)azanium;chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CC1=CC=CC=C1 VJGNLOIQCWLBJR-UHFFFAOYSA-M 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- IUSOXUFUXZORBF-UHFFFAOYSA-N n,n-dioctyloctan-1-amine;hydrochloride Chemical compound [Cl-].CCCCCCCC[NH+](CCCCCCCC)CCCCCCCC IUSOXUFUXZORBF-UHFFFAOYSA-N 0.000 description 1
- 229940031826 phenolate Drugs 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- RKHXQBLJXBGEKF-UHFFFAOYSA-M tetrabutylphosphanium;bromide Chemical compound [Br-].CCCC[P+](CCCC)(CCCC)CCCC RKHXQBLJXBGEKF-UHFFFAOYSA-M 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- OLKUPBYQDDHEET-UHFFFAOYSA-M triethyl(octadecyl)phosphanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[P+](CC)(CC)CC OLKUPBYQDDHEET-UHFFFAOYSA-M 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/19—Hydroxy compounds containing aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
- C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6886—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/87—Non-metals or inter-compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55150004A JPS5773021A (en) | 1980-10-24 | 1980-10-24 | Heat-resistant aromatic polyester coplymer and its preparation |
| EP81108525A EP0050821B1 (en) | 1980-10-24 | 1981-10-20 | Heat-resisting aromatic polyester resin and process for preparing the same |
| DE8181108525T DE3174983D1 (en) | 1980-10-24 | 1981-10-20 | Heat-resisting aromatic polyester resin and process for preparing the same |
| US06/313,670 US4426511A (en) | 1980-10-24 | 1981-10-21 | Heat-resisting aromatic polyester resin and process for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55150004A JPS5773021A (en) | 1980-10-24 | 1980-10-24 | Heat-resistant aromatic polyester coplymer and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5773021A JPS5773021A (en) | 1982-05-07 |
| JPH0212974B2 true JPH0212974B2 (US07655688-20100202-C00548.png) | 1990-04-03 |
Family
ID=15487360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55150004A Granted JPS5773021A (en) | 1980-10-24 | 1980-10-24 | Heat-resistant aromatic polyester coplymer and its preparation |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4426511A (US07655688-20100202-C00548.png) |
| EP (1) | EP0050821B1 (US07655688-20100202-C00548.png) |
| JP (1) | JPS5773021A (US07655688-20100202-C00548.png) |
| DE (1) | DE3174983D1 (US07655688-20100202-C00548.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03110979U (US07655688-20100202-C00548.png) * | 1990-02-28 | 1991-11-13 |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57164120A (en) * | 1981-04-02 | 1982-10-08 | Kanegafuchi Chem Ind Co Ltd | Heat-resistant aromatic polyester copolymer and its production |
| JPS58180525A (ja) * | 1982-04-19 | 1983-10-22 | Kanegafuchi Chem Ind Co Ltd | 耐熱性芳香族ポリエステルおよびその製造方法 |
| JPS59159823A (ja) * | 1983-02-28 | 1984-09-10 | Kanegafuchi Chem Ind Co Ltd | 耐熱性芳香族ポリエステルスルホンおよびその製造方法 |
| JPS59187022A (ja) * | 1983-04-06 | 1984-10-24 | Kanegafuchi Chem Ind Co Ltd | 改良された芳香族ポリエステル及びその製造法 |
| AT387394B (de) * | 1983-06-03 | 1989-01-10 | Isovolta | Verfahren zur polykondensation von diphenolen und dicarbonsaeurehalogeniden |
| US4477647A (en) * | 1983-08-30 | 1984-10-16 | General Electric Company | Polyarylate resin of thiodiphenols and isophthalic acid or derivatives thereof |
| US4600765A (en) * | 1984-02-17 | 1986-07-15 | Owens-Corning Fiberglas Corporation | Melt processable optically anisotropic polymers |
| GB8405049D0 (en) * | 1984-02-27 | 1984-04-04 | Raychem Ltd | Organic polymers |
| CA1250692A (en) * | 1984-03-20 | 1989-02-28 | Bp Amoco Corporation | Polyarylates having improved hydrolytic stability |
| DE3427886A1 (de) * | 1984-07-28 | 1986-01-30 | Bayer Ag, 5090 Leverkusen | Thermotrope aromatische polyester mit hoher steifigkeit, verfahren zu ihrer herstellung und ihre verwendung zur herstellung von formkoerpern, filamenten, fasern und folien |
| CA1228195A (en) * | 1984-08-03 | 1987-10-13 | Takayuki Nakano | Aromatic copolyester derived from aromatic dicarboxylic acid component and aromatic diol component |
| JPS6142539A (ja) * | 1984-08-07 | 1986-03-01 | Mitsui Petrochem Ind Ltd | 芳香族ポリエステル |
| DE3433756A1 (de) * | 1984-09-14 | 1986-03-27 | Bayer Ag, 5090 Leverkusen | Hochmolekulare polyester, ihre herstellung und verwendung |
| GB8521325D0 (en) * | 1985-08-27 | 1985-10-02 | Raychem Ltd | Preparation of side-chain polymers |
| IT1226508B (it) * | 1988-09-07 | 1991-01-23 | Donegani Guido Ist | Poliesteri aromatici liquido cristallini termotropici. |
| AT395431B (de) * | 1990-02-02 | 1992-12-28 | Isonova Tech Innovat Gmbh | Geformter koerper aus aromatischen polyestern |
| US5506330A (en) * | 1992-11-26 | 1996-04-09 | Korea Kumbo Petrochemical Co., Ltd. | Polymerization method for preparing non-halogenated aromatic |
| EP1286224A1 (en) | 2001-08-21 | 2003-02-26 | Mitsubishi Chemical Corporation | Electrophotographic photoreceptor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434393A (en) * | 1977-08-23 | 1979-03-13 | Sumitomo Chem Co Ltd | Preparation of aromatic polyester |
| JPS5440899A (en) * | 1977-09-05 | 1979-03-31 | Sumitomo Chem Co Ltd | Preparation of aromatic polyester |
| JPS54161698A (en) * | 1978-06-01 | 1979-12-21 | Union Carbide Corp | Preparation of polyarylate |
| JPS55116723A (en) * | 1979-02-28 | 1980-09-08 | Union Carbide Corp | Antiistressscracking polyarylate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907647A (en) * | 1960-02-29 | 1962-10-10 | Ici Ltd | New aromatic polyesters |
| US3879348A (en) * | 1970-12-22 | 1975-04-22 | Bayer Ag | Saponification-resistant polycarbonates |
| US3946091A (en) * | 1972-06-28 | 1976-03-23 | Unitika Limited | Aromatic co-polyester articles showing reduced crazing |
| DE2802978A1 (de) * | 1978-01-24 | 1979-07-26 | Bayer Ag | Verwendung von aromatischen polyestern fuer optische geraeteteile |
| JPS5558223A (en) * | 1978-10-25 | 1980-04-30 | Unitika Ltd | Aromatic polyester copolymer |
-
1980
- 1980-10-24 JP JP55150004A patent/JPS5773021A/ja active Granted
-
1981
- 1981-10-20 EP EP81108525A patent/EP0050821B1/en not_active Expired
- 1981-10-20 DE DE8181108525T patent/DE3174983D1/de not_active Expired
- 1981-10-21 US US06/313,670 patent/US4426511A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5434393A (en) * | 1977-08-23 | 1979-03-13 | Sumitomo Chem Co Ltd | Preparation of aromatic polyester |
| JPS5440899A (en) * | 1977-09-05 | 1979-03-31 | Sumitomo Chem Co Ltd | Preparation of aromatic polyester |
| JPS54161698A (en) * | 1978-06-01 | 1979-12-21 | Union Carbide Corp | Preparation of polyarylate |
| JPS55116723A (en) * | 1979-02-28 | 1980-09-08 | Union Carbide Corp | Antiistressscracking polyarylate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03110979U (US07655688-20100202-C00548.png) * | 1990-02-28 | 1991-11-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0050821A1 (en) | 1982-05-05 |
| DE3174983D1 (en) | 1986-08-28 |
| JPS5773021A (en) | 1982-05-07 |
| EP0050821B1 (en) | 1986-07-23 |
| US4426511A (en) | 1984-01-17 |
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