GB1347135A - Mixture of a polyphenylene ether and aromatic vinyl compound polymer - Google Patents
Mixture of a polyphenylene ether and aromatic vinyl compound polymerInfo
- Publication number
- GB1347135A GB1347135A GB1347135DA GB1347135A GB 1347135 A GB1347135 A GB 1347135A GB 1347135D A GB1347135D A GB 1347135DA GB 1347135 A GB1347135 A GB 1347135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aromatic vinyl
- polymerized
- polyphenylene ether
- vinyl compound
- mixture
- 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
Links
- 239000000203 mixture Substances 0.000 title abstract 10
- -1 aromatic vinyl compound Chemical class 0.000 title abstract 4
- 229920001955 polyphenylene ether Polymers 0.000 title abstract 4
- 229920002554 vinyl polymer Polymers 0.000 title abstract 4
- 229920000642 polymer Polymers 0.000 title abstract 2
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 abstract 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 238000006116 polymerization reaction Methods 0.000 abstract 3
- 239000012429 reaction media Substances 0.000 abstract 3
- NXXYKOUNUYWIHA-UHFFFAOYSA-N 2,6-Dimethylphenol Chemical compound CC1=CC=CC(C)=C1O NXXYKOUNUYWIHA-UHFFFAOYSA-N 0.000 abstract 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 abstract 2
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 abstract 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 abstract 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 abstract 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 abstract 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 abstract 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 abstract 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 abstract 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 abstract 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 abstract 2
- QCCDLTOVEPVEJK-UHFFFAOYSA-N phenylacetone Chemical compound CC(=O)CC1=CC=CC=C1 QCCDLTOVEPVEJK-UHFFFAOYSA-N 0.000 abstract 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 abstract 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- KTZVZZJJVJQZHV-UHFFFAOYSA-N 1-chloro-4-ethenylbenzene Chemical compound ClC1=CC=C(C=C)C=C1 KTZVZZJJVJQZHV-UHFFFAOYSA-N 0.000 abstract 1
- OEVVKKAVYQFQNV-UHFFFAOYSA-N 1-ethenyl-2,4-dimethylbenzene Chemical compound CC1=CC=C(C=C)C(C)=C1 OEVVKKAVYQFQNV-UHFFFAOYSA-N 0.000 abstract 1
- QEDJMOONZLUIMC-UHFFFAOYSA-N 1-tert-butyl-4-ethenylbenzene Chemical compound CC(C)(C)C1=CC=C(C=C)C=C1 QEDJMOONZLUIMC-UHFFFAOYSA-N 0.000 abstract 1
- CISIJYCKDJSTMX-UHFFFAOYSA-N 2,2-dichloroethenylbenzene Chemical compound ClC(Cl)=CC1=CC=CC=C1 CISIJYCKDJSTMX-UHFFFAOYSA-N 0.000 abstract 1
- METWAQRCMRWDAW-UHFFFAOYSA-N 2,6-diethylphenol Chemical compound CCC1=CC=CC(CC)=C1O METWAQRCMRWDAW-UHFFFAOYSA-N 0.000 abstract 1
- LIGCDBBRWWUYEW-UHFFFAOYSA-N 2-(dihydroxyamino)butanoic acid Chemical compound CCC(N(O)O)C(O)=O LIGCDBBRWWUYEW-UHFFFAOYSA-N 0.000 abstract 1
- KUNNUNBSGQSGDY-UHFFFAOYSA-N 2-butyl-6-methylphenol Chemical compound CCCCC1=CC=CC(C)=C1O KUNNUNBSGQSGDY-UHFFFAOYSA-N 0.000 abstract 1
- XNJCFOQHSHYSLG-UHFFFAOYSA-N 2-chloro-6-ethylphenol Chemical compound CCC1=CC=CC(Cl)=C1O XNJCFOQHSHYSLG-UHFFFAOYSA-N 0.000 abstract 1
- YPNZJHFXFVLXSE-UHFFFAOYSA-N 2-chloro-6-methylphenol Chemical compound CC1=CC=CC(Cl)=C1O YPNZJHFXFVLXSE-UHFFFAOYSA-N 0.000 abstract 1
- AKZFZHNJLYDHKN-UHFFFAOYSA-N 2-ethyl-6-propylphenol Chemical compound CCCC1=CC=CC(CC)=C1O AKZFZHNJLYDHKN-UHFFFAOYSA-N 0.000 abstract 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 abstract 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 abstract 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 abstract 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 abstract 1
- XCIXKGXIYUWCLL-UHFFFAOYSA-N cyclopentanol Chemical compound OC1CCCC1 XCIXKGXIYUWCLL-UHFFFAOYSA-N 0.000 abstract 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 abstract 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 abstract 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 abstract 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 abstract 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 abstract 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 abstract 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/44—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols by oxidation of phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/08—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to polyphenylene oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyethers (AREA)
Abstract
1347135 Polyphenylene ether compositions; polystyrene compositions ASAHI-DOW Ltd 26 May 1971 [8 Sept 1970] 30495/73 Divided out of 1347134 Headings C3R and C3P A composition comprising a polyphenylene ether and a polymer of an aromatic vinyl compound is obtained by polymerizing a disubstituted phenol in a liquid reaction medium which dissolves the phenol but not the polyphenylene ether and which consists of a mixture of an aromatic vinyl compound and one or more of certain liquids, the polymerization mixture then being dispersed in water containing a suspension stabilizer and the aromatic vinyl compound is polymerized to form the composition which is recovered. The liquids used in the reaction medium are methanol, ethanol, n-propanol, isopropanol, n - butanol, isobutanol, tert.- butanol, benzyl alcohol, cyclopentanol, cyclohexanol, pentanol, n-hexanol, water, acetonitrile, propionitrile, acrylonitrile, diethyl ether, tetrahydrofuran, pentane, n-hexane, 2- methylpentane, n-octane, cyclopentane, cyclohexane, dimethylformamide, dimethylacetamide, trimethyleneglycol, hexamethyleneglycol, dimethylsulphoxide, hexamethylphosphotriamide, acetone, methyl ethyl ketone, diethyl ketone, acetylacetone, benzyl methyl ketone and diethyl carbonate. The phenol is disubstituted with halogen atoms or alkyl or alkoxy groups, is present in the reaction medium in a concentration of from 15 to 35% by weight based on the total polymerization reaction mixture, and is polymerized by reaction with oxygen or an oxygen-containing gas in the presence of a catalyst. In examples 2,6- dimethylphenol, 2,6 - diethylphenol, 2 - chloro- 6 - methylphenol, 2 - methyl - 6 - n - butylphenol, 2 - ethyl - 6 - n - propylphenol and 2 - chloro - 6 - ethylphenol are polymerized with oxygen in mixtures comprising styrene, 4- chlorostyrene, 2,4 - dimethylstyrene, vinyltoluene, 4 - t - butylstyrene and dichlorostyrene as the aromatic vinyl compounds together with methanol, acetone, n-butanol, dimethylformamide and acetonitrile as the other solvents; various catalysts are present; the polymerization mixtures are then added to aqueous solutions containing polyvinyl alcohol, sodium dodecylbenzenesulphonate, boric acid, hydroxyethyl cellulose, the sodium salt of N,N- di - hydroxyethylglycine and tetrasodium ethylenediaminetetraacetate and the aromatic vinyl compounds are polymerized with t.- butyl perbenzoate and azobisisobutyronitrile to obtain resin mixtures which are removed by filtration.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4481470A JPS4926318B1 (en) | 1970-05-27 | 1970-05-27 | |
| JP45078220A JPS4911469B1 (en) | 1970-09-08 | 1970-09-08 | |
| JP45108107A JPS4928919B1 (en) | 1970-12-08 | 1970-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1347135A true GB1347135A (en) | 1974-02-27 |
Family
ID=27292034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1347135D Expired GB1347135A (en) | 1970-05-27 | 1971-05-26 | Mixture of a polyphenylene ether and aromatic vinyl compound polymer |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2126434C3 (en) |
| FR (1) | FR2100690B1 (en) |
| GB (1) | GB1347135A (en) |
| NL (1) | NL147451B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4118348A (en) * | 1973-10-01 | 1978-10-03 | General Electric Company | Method for preparing blends of rubber, a polyphenylene ether resin and an alkenyl aromatic addition polymer |
| US4152369A (en) * | 1973-10-01 | 1979-05-01 | General Electric Company | Method for preparing compositions of a polyphenylene ether resin and an alkenyl aromatic addition polymer using an alkenyl aromatic monomer as the solvent |
| IT1078061B (en) * | 1976-02-10 | 1985-05-08 | Asahi Dow Ltd | COMPOSITION OF A PLUG-IN COPOLYMER AND ITS PREPARATION |
| US4158028A (en) * | 1976-02-10 | 1979-06-12 | Asahi-Dow Limited | Polyphenylene ether-styrene graft copolymer composition and preparation thereof |
| US4057599A (en) * | 1976-10-18 | 1977-11-08 | General Electric Company | Process for the preparation of vinyl aromatic-modified polyphenylene ethers |
| US4148843A (en) * | 1977-12-23 | 1979-04-10 | General Electric Company | Compositions of capped polyphenylene oxides and alkenyl aromatic resins |
| US4189417A (en) * | 1977-12-23 | 1980-02-19 | General Electric Company | Process for the polymerization of alkenyl aromatic monomers in the presence of polyphenylene oxides |
| US4335234A (en) | 1979-10-24 | 1982-06-15 | General Electric Company | Use of manganese chelate to oxidatively couple phenolic compound in a self-precipitating system |
| US4463164A (en) * | 1983-02-15 | 1984-07-31 | Borg-Warner Chemicals, Inc. | Process for preparing polyphenylene ethers |
| DE3529093A1 (en) * | 1985-08-14 | 1987-02-19 | Bayer Ag | METHOD FOR THE PRODUCTION OF MONO- AND BIFUNCTIONAL OLIGOPHENYLENE OXIDES |
| DE3919229A1 (en) * | 1989-06-13 | 1990-12-20 | Basf Ag | METHOD FOR PRODUCING POLYPHENYLENE ETHER BY OXIDATIVE COUPLING REACTION IN SOLUTION |
| IT1255564B (en) * | 1992-10-23 | 1995-11-09 | Enichem Polimeri | PROCESS FOR OBTAINING POLYPHENYLENETERS WITH REDUCED FINE CONTENT |
-
1971
- 1971-05-26 GB GB1347135D patent/GB1347135A/en not_active Expired
- 1971-05-27 FR FR7119236A patent/FR2100690B1/fr not_active Expired
- 1971-05-27 DE DE19712126434 patent/DE2126434C3/en not_active Expired
- 1971-05-27 NL NL7107328A patent/NL147451B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2126434A1 (en) | 1971-12-02 |
| FR2100690B1 (en) | 1974-02-15 |
| FR2100690A1 (en) | 1972-03-24 |
| DE2126434C3 (en) | 1974-02-28 |
| NL147451B (en) | 1975-10-15 |
| NL7107328A (en) | 1971-11-30 |
| DE2126434B2 (en) | 1973-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |