ES2255914T3 - Polimerizacion de alfa-olefinas con catalizador de metales de transicion a base de ligandos bidentados con restos piridina o quinolina. - Google Patents
Polimerizacion de alfa-olefinas con catalizador de metales de transicion a base de ligandos bidentados con restos piridina o quinolina.Info
- Publication number
- ES2255914T3 ES2255914T3 ES00110565T ES00110565T ES2255914T3 ES 2255914 T3 ES2255914 T3 ES 2255914T3 ES 00110565 T ES00110565 T ES 00110565T ES 00110565 T ES00110565 T ES 00110565T ES 2255914 T3 ES2255914 T3 ES 2255914T3
- Authority
- ES
- Spain
- Prior art keywords
- catalyst
- cyclopentadienyl
- halogen
- zirconium
- alkyl
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 53
- 238000006116 polymerization reaction Methods 0.000 title description 19
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 title description 11
- 239000003446 ligand Substances 0.000 title description 6
- 229910052751 metal Inorganic materials 0.000 title description 4
- 239000002184 metal Substances 0.000 title description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 claims abstract description 10
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 10
- 150000002367 halogens Chemical class 0.000 claims abstract description 10
- 150000003839 salts Chemical class 0.000 claims abstract description 10
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 239000010936 titanium Substances 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 7
- 239000001257 hydrogen Substances 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 7
- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000178 monomer Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 150000001450 anions Chemical class 0.000 claims abstract description 4
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Natural products C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 125000003118 aryl group Chemical group 0.000 claims abstract description 3
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims abstract description 3
- 229910052735 hafnium Chemical group 0.000 claims abstract description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical group [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 claims abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 21
- 239000004711 α-olefin Substances 0.000 claims description 11
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 10
- 239000005977 Ethylene Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- HOGMFBWKANERDP-UHFFFAOYSA-N 5,7-dichloro-2-methylquinoline Chemical compound ClC1=CC(Cl)=CC2=NC(C)=CC=C21 HOGMFBWKANERDP-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- JERAMZUGSBVYLJ-UHFFFAOYSA-K quinolin-8-ol trichlorotitanium Chemical compound Cl[Ti](Cl)Cl.C1=CN=C2C(O)=CC=CC2=C1 JERAMZUGSBVYLJ-UHFFFAOYSA-K 0.000 claims description 2
- JEPBVCPSRDTNEQ-UHFFFAOYSA-N Cl.Cl.C1C=CC=C1 Chemical compound Cl.Cl.C1C=CC=C1 JEPBVCPSRDTNEQ-UHFFFAOYSA-N 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- 229920013639 polyalphaolefin Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 abstract 3
- 125000003545 alkoxy group Chemical group 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 36
- 229920000642 polymer Polymers 0.000 description 23
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 18
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 229910052723 transition metal Inorganic materials 0.000 description 7
- 150000003624 transition metals Chemical class 0.000 description 7
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 150000003222 pyridines Chemical class 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- UBQKCCHYAOITMY-UHFFFAOYSA-N pyridin-2-ol Chemical compound OC1=CC=CC=N1 UBQKCCHYAOITMY-UHFFFAOYSA-N 0.000 description 4
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- GPTXWRGISTZRIO-UHFFFAOYSA-N chlorquinaldol Chemical compound ClC1=CC(Cl)=C(O)C2=NC(C)=CC=C21 GPTXWRGISTZRIO-UHFFFAOYSA-N 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000012968 metallocene catalyst Substances 0.000 description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 3
- 125000002524 organometallic group Chemical group 0.000 description 3
- 229960003540 oxyquinoline Drugs 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- SKEDXQSRJSUMRP-UHFFFAOYSA-N lithium;quinolin-8-ol Chemical compound [Li].C1=CN=C2C(O)=CC=CC2=C1 SKEDXQSRJSUMRP-UHFFFAOYSA-N 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- ZPQOPVIELGIULI-UHFFFAOYSA-N 1,3-dichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1 ZPQOPVIELGIULI-UHFFFAOYSA-N 0.000 description 1
- PRBHEGAFLDMLAL-UHFFFAOYSA-N 1,5-Hexadiene Natural products CC=CCC=C PRBHEGAFLDMLAL-UHFFFAOYSA-N 0.000 description 1
- INYHZQLKOKTDAI-UHFFFAOYSA-N 5-ethenylbicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(C=C)CC1C=C2 INYHZQLKOKTDAI-UHFFFAOYSA-N 0.000 description 1
- 239000005725 8-Hydroxyquinoline Substances 0.000 description 1
- 241000349731 Afzelia bipindensis Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- XUBBBAZWHFQYBA-UHFFFAOYSA-K Cl[Zr](Cl)(OC1=C2N=CC=CC2=CC=C1)C1C=CC=C1 Chemical compound Cl[Zr](Cl)(OC1=C2N=CC=CC2=CC=C1)C1C=CC=C1 XUBBBAZWHFQYBA-UHFFFAOYSA-K 0.000 description 1
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- WZFBYHHDAXRSNI-UHFFFAOYSA-N OB(O)O.FC(C(F)=C(C(F)=C1F)F)=C1NC1=CC=CC=C1.FC(C(F)=C(C(F)=C1F)F)=C1NC1=CC=CC=C1.FC(C(F)=C(C(F)=C1F)F)=C1NC1=CC=CC=C1 Chemical compound OB(O)O.FC(C(F)=C(C(F)=C1F)F)=C1NC1=CC=CC=C1.FC(C(F)=C(C(F)=C1F)F)=C1NC1=CC=CC=C1.FC(C(F)=C(C(F)=C1F)F)=C1NC1=CC=CC=C1 WZFBYHHDAXRSNI-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- KDCMBOFDPFOGIN-UHFFFAOYSA-K [Cl-].[Cl-].C1(C=CC=C1)[Ti+2]OC1=NC=CC=C1 Chemical compound [Cl-].[Cl-].C1(C=CC=C1)[Ti+2]OC1=NC=CC=C1 KDCMBOFDPFOGIN-UHFFFAOYSA-K 0.000 description 1
- OJWQATXFXORIBY-UHFFFAOYSA-J [Cl-].[Cl-].O([Ti++]Oc1ccccn1)c1ccccn1 Chemical compound [Cl-].[Cl-].O([Ti++]Oc1ccccn1)c1ccccn1 OJWQATXFXORIBY-UHFFFAOYSA-J 0.000 description 1
- IGURZGCFZZUZSD-UHFFFAOYSA-N [Li]c1c(F)c(F)c(F)c(F)c1F Chemical compound [Li]c1c(F)c(F)c(F)c(F)c1F IGURZGCFZZUZSD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000005234 alkyl aluminium group Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZHXZNKNQUHUIGN-UHFFFAOYSA-N chloro hypochlorite;vanadium Chemical compound [V].ClOCl ZHXZNKNQUHUIGN-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- AENCLWKVWIIOQH-UHFFFAOYSA-K cyclopentane;trichlorotitanium Chemical compound Cl[Ti](Cl)Cl.[CH]1C=CC=C1 AENCLWKVWIIOQH-UHFFFAOYSA-K 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012685 gas phase polymerization Methods 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical compound C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- IHLVCKWPAMTVTG-UHFFFAOYSA-N lithium;carbanide Chemical compound [Li+].[CH3-] IHLVCKWPAMTVTG-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 150000005671 trienes Chemical class 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- GBXQPDCOMJJCMJ-UHFFFAOYSA-M trimethyl-[6-(trimethylazaniumyl)hexyl]azanium;bromide Chemical compound [Br-].C[N+](C)(C)CCCCCC[N+](C)(C)C GBXQPDCOMJJCMJ-UHFFFAOYSA-M 0.000 description 1
- ANEFWEBMQHRDLH-UHFFFAOYSA-N tris(2,3,4,5,6-pentafluorophenyl) borate Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1OB(OC=1C(=C(F)C(F)=C(F)C=1F)F)OC1=C(F)C(F)=C(F)C(F)=C1F ANEFWEBMQHRDLH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
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Abstract
Un procedimiento de preparación de una poli-a-olefina que comprende polimerizar un monómero de a-olefina utilizando un sistema catalizador que comprende (a) un catalizador que tiene la fórmula general (Ver fórmula) en la que Y es O, S, NR, (Ver fórmula) cada R se selecciona independientemente de hidrógeno o alquilo C1 a C6, M es titanio, circonio o hafnio, cada X se selecciona independientemente de halógeno, alquilo C1 a C6, alcoxi C1 a C6, o (Ver fórmula) L es X, ciclopentadienilo, alquilo C1 a C6, ciclopentadienilo sustituido, indenilo, fluorenilo, o (Ver fórmula) cada R¿ se selecciona independientemente de R, alcoxi C1 a C6, arilo C6 a C16, halógeno o CF3; y "n" es 1 a 4. y (b) un cocatalizador seleccionado del grupo constituido por metilaluminoxano (MAO), polimetilaluminoxano (PMAO) y sales de ácido de aniones inertes no coordinantes.
Description
Polimerización de
\alpha-olefinas con catalizador de metales de
transición a base de ligandos bidentados con restos piridina o
quinolina.
Esta invención se refiere a catalizadores útiles
en la polimerización de \alpha-olefinas. En
particular, se refiere a la polimerización de etileno utilizando
catalizadores metales de transición con ligandos bidentados que
contienen restos piridina o quinolina. Al contrario que los
productos de reacción dados a conocer en la patente de EE.UU. nº
3.900.452, en los que el titanio en el
TiCl-piridinato forma un enlace no sigma con el
nitrógeno del anillo heterocíclico, los compuestos de la invención
contienen un titanio que forma un enlace no sigma con el nitrógeno,
así como un enlace sigma con un átomo de oxígeno que, a su vez, está
unido al anillo heterocíclico.
Hasta hace poco, las poliolefinas se han
preparado principalmente utilizando sistemas catalizadores de
Ziegler convencionales. Un catalizador de Ziegler consiste
típicamente en un compuesto que contiene un metal de transición y
uno o más compuestos organometálicos. Por ejemplo, el polietileno se
ha preparado utilizando catalizadores de Ziegler tales como
tricloruro de titanio y cloruro de dietilaluminio, o una mezcla de
tetracloruro de titanio, oxitricloruro de vanadio y trietilaluminio.
Estos catalizadores son económicos, pero tienen una baja actividad
y por lo tanto deben utilizarse a altas concentraciones. El residuo
de catalizador en los polímeros produce un color amarillo o gris y
una pobre estabilidad a los ultravioleta y a largo plazo, y los
residuos que contienen cloruro pueden causar corrosión en el equipo
de procesamiento de polímero. Por lo tanto, a veces es necesario
retirar los residuos de catalizador del polímero o añadir agentes
neutralizantes y estabilizantes al polímero para superar los efectos
dañinos de los residuos, y esto suma costes de producción.
Adicionalmente, los catalizadores de Ziegler producen polímeros que
tienen una amplia distribución de peso molecular, lo que es
indeseable para algunas aplicaciones tales como moldeo por
inyección. Son también malos incorporando comonómeros de
\alpha-olefina, haciendo difícil controlar la
densidad del polímero. Pueden requerirse grandes cantidades de
comonómero en exceso para conseguir una cierta densidad, y muchas
\alpha-olefinas superiores, tales como
1-octeno, pueden incorporarse sólo a muy bajos
niveles, si acaso.
Aunque han aparecido mejoras sustanciales en los
sistemas catalizadores de Ziegler desde su descubrimiento, estos
catalizadores se están reemplazando ahora por sistemas catalizadores
de metaloceno recién descubiertos. Un catalizador de metaloceno
consiste típicamente en un compuesto de metal de transición que
tiene uno o más ligandos de anillo de ciclopentadienilo. Los
metalocenos tienen bajas actividades cuando se utilizan con
compuestos organometálicos tales como alquilaluminios, que se
utilizan con catalizadores Ziegler tradicionales, pero muy altas
actividades cuando se utilizan con aluminoxanos como
cocatalizadores. Las actividades son generalmente tan altas que no
necesitan retirarse los residuos de catalizador del polímero.
Además, producen polímeros con altos pesos moleculares y
distribuciones estrechas de peso molecular. También incorporan bien
comonómeros de \alpha-olefina.
El documento
US-A-3.900.452 (véase la
reivindicación 1) describe un procedimiento para la copolimerización
de \alpha-olefina con al menos un trieno en
presencia de diversos cocatalizadores (reivindicación 10) para la
preparación de copolímeros amorfos lineales de alto peso molecular
(reivindicación 1) a 25ºC (ejemplos 21 y 22).
Sin embargo, a mayores temperaturas, los
catalizadores de metaloceno tienden a producir polímeros de menor
peso molecular. Por tanto, son útiles para polimerizaciones en fase
gaseosa y en suspensión densa de etileno, que se realizan
aproximadamente a 80ºC a aproximadamente 95ºC pero, en general, no
funcionan bien a medida que aumentan las temperaturas. La
polimerización de etileno en solución a mayores temperaturas es
deseable porque permite una gran flexibilidad para la producción de
polímeros en un amplio intervalo de pesos moleculares y densidades,
así como el uso de una gran variedad de diferentes comonómeros. La
polimerización en solución permite la producción de polímeros que
son útiles en muchas aplicaciones diferentes. Por ejemplo, pueden
prepararse tanto película de polietileno (PE) de alto peso molecular
y alta densidad útil como película de barrera para envasado de
alimentos como copolímeros de etileno de baja densidad con buena
tenacidad y alta resistencia a los impactos.
Los inventores han descubierto nuevos compuestos
bidentados de piridina y metal de transición que tienen excelente
actividad como catalizadores de polimerización de
\alpha-olefina. Los inventores han descubierto
también que compuestos bidentados de quinolina y metal de
transición, que hasta el momento no se sospechaba que poseyeran
propiedades catalíticas, son también excelentes catalizadores de
polimerización para \alpha-olefinas. Estos
catalizadores producen polímeros que tienen propiedades muy cercanas
a las propiedades de los polímeros producidos utilizando
catalizadores de metaloceno. Es decir, los polímeros tienen una
distribución estrecha de peso molecular y una incorporación uniforme
de comonómero.
Los catalizadores de metal de transición de esta
invención que contienen el ligando basado en piridina bidentado
tienen la fórmula general
en la que Y es O, S,
NR
cada R se selecciona
independientemente de hidrógeno o alquilo C_{1} a C_{6}, cada R'
se selecciona independientemente de R, alcoxi C_{1} a C_{6},
arilo C_{6} a C_{16}, halógeno o CF, M es titanio, circonio o
hafnio, cada X se selecciona independientemente de halógeno, alquilo
C_{1} a C_{6}, alcoxi C_{1} a C_{6},
o
L es X, ciclopentadienilo sustituido, alquilo
C_{1} a C_{6}, ciclopentadienilo, indenilo, fluorenilo, o
"m" es 0 a 4, y "n" es 1
a
4.
En la fórmula, el grupo Y es preferiblemente
oxígeno, ya que esos compuestos son más fáciles de preparar. Por la
misma razón, el grupo R es preferiblemente metilo y "R" es
preferiblemente hidrógeno. El grupo L es preferiblemente halógeno,
lo más preferiblemente cloro, y esos catalizadores proporcionan
propiedades superiores y son más fáciles de preparar. Por las mismas
razones, el grupo X es preferiblemente halógeno, especialmente
cloro, y el grupo M es preferiblemente titanio.
La preparación de los complejos bidentados de
piridina se ilustra en los ejemplos; pero generalmente pueden
prepararse haciendo reaccionar un precursor de piridina sustituida
que tiene un protón ácido con un compuesto que tiene la fórmula
MX_{3}L en presencia de un secuestrante HX. La reacción es
estequiométrica y se prefieren cantidades estequiométricas de
secuestrante. Los ejemplos de secuestrantes adecuados incluyen
compuestos que son más básicos que la piridina sustituida tales como
trietilamina, piridina, hidruro de sodio y
butil-litio. Si el secuestrante es una base más
fuerte que la piridina sustituida, puede prepararse una sal de la
piridina sustituida y empezar con eso. Aunque la reacción se realiza
preferiblemente en un disolvente, sólo se requiere una solubilidad
parcial de los reactantes. Puede utilizarse un disolvente aprótico
tal como tetrahidrofurano (THF), éter, tolueno o xileno,
aproximadamente a 0,2 a aproximadamente 20% en peso de sólidos, y
preferiblemente aproximadamente a 5 a aproximadamente 10% en peso de
sólidos, la reacción puede ocurrir a aproximadamente -78ºC a
aproximadamente temperatura ambiente. A medida que procede la
reacción, se forma un precipitado y el producto puede extraerse con
tolueno, cloruro de metileno, dietiléter o un extractante
similar.
El catalizador de metal de transición y quinolina
bidentado de esta invención tiene la fórmula general
en la que R, R', L, M, X y "n"
son como se definieron
anteriormente.
Los catalizadores de metal de transición y
quinolina se preparan de manera similar a los catalizadores de metal
de transición y piridina, excepto porque se empieza con una
quinolina sustituida tal como 8-hidroxiquinolina
(también conocida como 8-quinolinol) en lugar de la
piridina sustituida. También puede utilizarse
butil-litio en un disolvente para preparar la sal de
litio de 8-hidroxiquinolina, que puede utilizarse
también como material de partida.
Puesto que el catalizador se utiliza normalmente
junto con un cocatalizador organometálico, es preferible disolver
el catalizador en un disolvente en el que el cocatalizador sea
también soluble. Por ejemplo, si el metilaluminoxano (MAO) o
polimetilaluminoxano (PMAO) es el cocatalizador, entonces podrían
utilizarse tolueno, xileno, benceno o etilbenceno como disolvente.
El cocatalizador preferido es MAO, ya que da como resultado una alta
actividad y un polímero que tiene una distribución de peso molecular
más estrecha. La relación molar de cocatalizador organometálico a
catalizador cuando se utiliza en una polimerización está
generalmente en el intervalo de 0,01:1 a 100.000:1, y
preferiblemente está en el intervalo de 1:1 a 10.000:1.
Es un cocatalizador alternativo una sal de ácido
que contiene un anión inerte no coordinante (véase la patente de
EE.UU. nº 5.064.802). La sal de ácido es generalmente un compuesto
no nucleofílico que consiste en ligandos voluminosos unidos a un
átomo de boro o aluminio tal como
tetraquis(pentafluorofenilborato) de litio,
tetraquis(pentafluorofenil)aluminato de litio,
tetraquis(pentafluorofenil)borato de anilinio y
mezclas de los mismos. El anión resultante cuando estos compuestos
reaccionan con el catalizador se cree que está débilmente coordinado
con el catión que contiene metal. La relación molar de sal de ácido
a catalizador puede estar en el intervalo de aproximadamente 0,01:1
a aproximadamente 1.000:1, pero es preferiblemente de
aproximadamente 1:1 a 10:1. Aunque no hay limitación en el
procedimiento de preparación de un sistema catalizador activo de
catalizador y sal de ácido, preferiblemente se mezclan en un
disolvente inerte a temperaturas en el intervalo de aproximadamente
-78ºC a aproximadamente 150ºC. Pueden mezclarse también en presencia
de monómero si se desea. La sal de ácido puede utilizarse en
combinación con los cocatalizadores organometálicos descritos
anteriormente.
El catalizador y cocatalizador pueden utilizarse
en un soporte tal como gel de sílice, alúmina, sílice, magnesia o
titania, pero los soportes no son preferidos ya que pueden dejar
contaminantes en el polímero. Sin embargo, puede requerirse un
soporte dependiendo del procedimiento que se esté utilizando. Por
ejemplo, se necesita generalmente un soporte en procedimientos de
polimerización en fase gaseosa y polimerización en suspensión densa
para controlar el tamaño de partícula del polímero que se está
produciendo y para evitar la incrustación de las paredes del
reactor. Para utilizar un soporte, se disuelven catalizador y
cocatalizador en el disolvente y se precipitan sobre el material de
soporte, por ejemplo, evaporando el disolvente. El cocatalizador
puede depositarse también sobre el soporte o puede introducirse en
el reactor separadamente del catalizador soportado.
El catalizador se utiliza de manera convencional
en la polimerización de monómeros hidrocarbonados olefínicos. Aunque
pueden polimerizarse monómeros insaturados, tales como estireno,
utilizando el catalizador de esta invención, es particularmente útil
para polimerizar \alpha-olefinas tales como
propileno, 1-buteno, 1-hexeno,
1-octeno y especialmente etileno.
El catalizador es también útil de manera
convencional para copolimerizar mezclas de monómeros insaturados
tales como etileno, propileno, 1-buteno,
1-hexeno, 1-octeno y similares;
mezclas de etileno y diolefinas tales como
1,3-butadieno, 1,4-hexadieno,
1,5-hexadieno y similares; y mezclas de etileno y
comonómeros insaturados tales como norborneno,
etiliden-norborneno, vinilnorborneno, norbornadieno
y similares.
Los catalizadores de esta invención pueden
utilizarse en una variedad de diferentes procedimientos de
polimerización. Pueden utilizarse en un procedimiento de
polimerización en fase líquida (suspensión densa, solución,
suspensión, en volumen o una combinación de estos), en una fase
fluida a alta presión o en un procedimiento de polimerización en
fase gaseosa. Los procedimientos pueden utilizarse en serie o como
procedimientos individuales únicos. La presión en las zonas de
reacción de polimerización está en el intervalo de aproximadamente
2,17 a aproximadamente 7.246 kPa y la temperatura puede estar en el
intervalo de aproximadamente -78ºC a aproximadamente 300ºC.
Ejemplo
1
Se añadió gota a gota a 0ºC una solución de 0,01
mol de tetracloruro de titanio a una solución de 0,02 mol de
2-hidroxipiridina y 0,02 mol de trietilamina en 50
ml de THF, y se agitó durante una noche a temperatura ambiente.
Después de la filtración, se evaporó la solución de THF y se extrajo
el producto del residuo. El producto tiene la fórmula:
Ejemplo
2
Se añadió una solución de
2-hidroxipiridina (0,002 mol) y trietilamina (0,002
mol) en 50 ml de éter a una solución de 0,002 mol de tricloruro de
ciclopentadieniltitanio en 50 ml de éter a 0ºC, y se agitó durante
una noche. Se recuperó el producto del filtrado de éter. El producto
tiene la fórmula:
Ejemplo
3
Se combinaron suspensiones densas en tolueno de
sales de litio de diversos derivados de 8-quinolinol
(preparados utilizando butil-litio) con el
correspondiente compuesto de titanio o circonio (tetracloruro de
titanio, tetracloruro de circonio, tricloruro de
ciclopentadieniltitanio o tricloruro de ciclopentadienilcirconio) a
-78ºC, y se agitó durante una noche a temperatura ambiente. Se
recuperaron los complejos de la mezcla de reacción mediante
extracción con tolueno o cloruro de metileno. Para preparar
tricloruro de 8-quinolinoxititanio (III)
\newpage
se añadió una suspensión densa de
0,01 mol de la sal de litio de 8-hidroxiquinolina en
30 ml de tolueno (preparado a partir de 1,45 g (0,01 mol) de
quinolinol y MeLi) a -78ºC a una solución de 1,9 g (0,01 mol) de
TiCl_{4} en 20 ml de tolueno, y se agitó durante una noche a
temperatura ambiente. Se separó el precipitado, se lavó con tolueno
y se extrajo con 100 ml de CH_{2}Cl_{2}. Después de retirar el
cloruro de metileno, se aisló un sólido microcristalino marrón (IV)
(2,3
g)
De forma similar, se preparó tricloruro de
8-(2-metil-5,7-dicloroquinolin)oxititanio
(IV) (2,3 g)
partiendo de una sal de litio
preparada a partir de 2,28 g (0,01 mol) de
5,7-dicloro-2-metil-8-quinolinol.
Se utilizó un procedimiento similar para preparar
1,0 g del complejo comparativo dicloruro de
bis-[8-(2-metil-5,7-dicloroquinolin)oxi]circonio
(V)
a partir de 2,28 g (0,01 mol) de
5,7-dicloro-2-metil-8-quinolinol
y 1,165 g (0,005 mol) de tetracloruro de
circonio.
Para preparar dicloruro de
(ciclopentadienil)-(8-quinolinoxi)circonio
(VI)
y dicloruro de
(ciclopentadienil)-[8-(2-metil-5,7-dicloroquinolin)oxi]circonio
(VII)
se hicieron reaccionar sales de
litio preparadas a partir de 1,45 g (0,01 mol) de
8-quinolinol o 1,15 g (0,005 mol) de
5,7-dicloro-2-metil-8-quinolinol,
respectivamente, con cantidades equimolares de tricloruro de
ciclopentadienilcirconio en tolueno a -78ºC. Después de agitar
durante una noche y filtrar, se aislaron los productos (0,62 g de VI
y 1,7 g de VII) a partir de la solución de
tolueno.
Ejemplo
4
Todas las polimerizaciones en este estudio se
realizaron en un reactor de 1,7 l. Antes de realizar una
polimerización, se "desgasificó por calentamiento" el reactor
calentando a 130ºC y manteniendo esa temperatura durante 30 minutos
con purga de nitrógeno. Se trataron etileno, hidrógeno, hexeno,
buteno y nitrógeno mediante pasada a través de columnas que
contenían tamices moleculares 13x. Para una polimerización típica,
se cargó el reactor con 0,850 l de hexano o tolueno y, utilizando
una jeringuilla, el volumen requerido de PMAO (AKZO) diluido. Se
añadió la cantidad deseada de hidrógeno al reactor controlando la
caída de presión (\DeltaP) desde un recipiente inoxidable de 1 l a
presión con hidrógeno. Se añadió una solución de catalizador en
tolueno al reactor mediante sobrepresión de nitrógeno. Se mantuvo el
reactor en condiciones isotérmicas a lo largo del proceso. Se
introdujo etileno en el reactor y se controló a 21,7 kPa con
alimentación a petición mediante un regulador de presión. Después de
estabilizarse la temperatura y presión del reactor, se cargó la
suspensión densa de catalizador en el reactor y se inició la
polimerización. Se controló el flujo de etileno mediante un medidor
del flujo másico Brooks.
Se terminó la polimerización purgando el reactor
y se recuperó el polímero mediante filtración. Se estabilizó el
polímero mediante la adición de aproximadamente 1.000 ppm de
hidroxitolueno butilado/hexano (BHT) y se desvolatilizó
adicionalmente durante 2 horas a 80ºC en una estufa a vacío. Se
determinaron las propiedades de flujo en estado fundido del polímero
según la norma ASTM D-1238. Se midieron las
densidades de polímero en muestras moldeadas por compresión en una
columna de gradiente de densidad según la norma ASTM
D-1505 85.
La siguiente tabla proporciona las condiciones de
reacción.
\vskip1.000000\baselineskip
\vskip1.000000\baselineskip
\vskip1.000000\baselineskip
(Tabla pasa a página
siguiente)
En la tabla, kg/g/h es kilogramos de polímero
producido por gramo de catalizador por hora. El índice de fusión
del polímero se midió según la norma ASTM D-1238,
condición E y condición F. MI2 es el índice de fusión medido con un
peso de 2,16 kg (condición E). MI20 es el índice de fusión medido
con un peso de 21,6 kg (condición F). MFR es la relación de MI20 a
MI2. Se midió la densidad del polímero según la norma ASTM
D-1505. Se midió la distribución de peso molecular
del polímero utilizando un cromatógrafo de exclusión molecular
Waters 150C a 135ºC con 1,2,4-diclorobenceno como
disolvente. Se utilizan tanto el peso molecular ponderado medio (Mw)
como la relación de Mw a Mn (peso molecular numérico medio) para
caracterizar la distribución de peso molecular.
Los catalizadores de esta invención
proporcionaron buenas productividades y polímeros de alto peso
molecular, como evidencian los muy bajos valores de MI, y los
catalizadores VI y VII lo hicieron también incluso a mayores
temperaturas (110ºC).
Claims (12)
1. Un procedimiento de preparación de una
poli-\alpha-olefina que comprende
polimerizar un monómero de \alpha-olefina
utilizando un sistema catalizador que comprende (a) un catalizador
que tiene la fórmula general
en la que Y es O, S,
NR,
cada R se selecciona
independientemente de hidrógeno o alquilo C_{1} a C_{6}, M es
titanio, circonio o hafnio, cada X se selecciona independientemente
de halógeno, alquilo C_{1} a C_{6}, alcoxi C_{1} a C_{6},
o
L es X, ciclopentadienilo, alquilo C_{1} a
C_{6}, ciclopentadienilo sustituido, indenilo, fluorenilo, o
cada R' se selecciona
independientemente de R, alcoxi C_{1} a C_{6}, arilo C_{6} a
C_{16}, halógeno o
CF_{3};
y "n" es 1 a 4.
y
(b) un cocatalizador seleccionado del grupo
constituido por metilaluminoxano (MAO), polimetilaluminoxano (PMAO)
y sales de ácido de aniones inertes no coordinantes.
2. Un procedimiento según la reivindicación 1, en
el que dicho catalizador tiene la fórmula general
3. Un procedimiento según la reivindicación 2, en
el que Y es oxígeno y X es halógeno.
4. Un procedimiento según la reivindicación 2, en
el que M es titanio.
5. Un procedimiento según la reivindicación 2, en
el que M es circonio.
6. Un procedimiento según la reivindicación 5, en
el que Y es oxígeno y X es halógeno.
7. Un procedimiento según la reivindicación 6, en
el que X es cloro.
8. Un procedimiento según la reivindicación 7, en
el que L es ciclopentadienilo.
9. Un procedimiento según la reivindicación 8, en
el que R' se selecciona independientemente del grupo constituido
por cloro, metilo y mezclas de los mismos.
10. Un procedimiento según la reivindicación 1,
en el que dicho catalizador se selecciona del grupo constituido por
tricloruro de 8-quinolinoxititanio, tricloruro de
8-(2-metil-5,7-dicloroquinolin)oxititanio,
dicloruro de
(ciclopentadie-
nil)-(8-quinolinoxi)circonio, dicloruro de (ciclopentadienil)-[8-(2-metil-5,7-dicloroquinolin)oxi]circonio y mezclas de los mismos.
nil)-(8-quinolinoxi)circonio, dicloruro de (ciclopentadienil)-[8-(2-metil-5,7-dicloroquinolin)oxi]circonio y mezclas de los mismos.
11. Un procedimiento según cualquiera de las
reivindicaciones precedentes, en el que el sistema catalizador es
un sistema catalizador soportado.
12. Un procedimiento según cualquiera de las
reivindicaciones precedentes, en el que la
\alpha-olefina se selecciona del grupo constituido
por etileno y propileno.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US423232 | 1995-04-17 | ||
US08/423,232 US5637660A (en) | 1995-04-17 | 1995-04-17 | Polymerization of α-olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2255914T3 true ES2255914T3 (es) | 2006-07-16 |
Family
ID=23678124
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96909748T Expired - Lifetime ES2164878T3 (es) | 1995-04-17 | 1996-03-18 | Catalizador de metal de transicion basado en ligandos bidentados que contienen resto piridina. |
ES00110565T Expired - Lifetime ES2255914T3 (es) | 1995-04-17 | 1996-03-18 | Polimerizacion de alfa-olefinas con catalizador de metales de transicion a base de ligandos bidentados con restos piridina o quinolina. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96909748T Expired - Lifetime ES2164878T3 (es) | 1995-04-17 | 1996-03-18 | Catalizador de metal de transicion basado en ligandos bidentados que contienen resto piridina. |
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US (3) | US5637660A (es) |
EP (2) | EP0832089B1 (es) |
JP (1) | JPH11503785A (es) |
KR (1) | KR19990007920A (es) |
CN (1) | CN1068331C (es) |
AU (1) | AU5314496A (es) |
BR (1) | BR9608224A (es) |
DE (2) | DE69615554T2 (es) |
ES (2) | ES2164878T3 (es) |
MX (1) | MX9707982A (es) |
RU (1) | RU2169735C2 (es) |
WO (1) | WO1996033202A2 (es) |
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- 1996-03-18 ES ES96909748T patent/ES2164878T3/es not_active Expired - Lifetime
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WO1996033202A3 (en) | 1996-11-28 |
ES2164878T3 (es) | 2002-03-01 |
DE69635719T2 (de) | 2006-09-28 |
WO1996033202A2 (en) | 1996-10-24 |
EP0832089B1 (en) | 2001-09-26 |
EP0832089A2 (en) | 1998-04-01 |
KR19990007920A (ko) | 1999-01-25 |
DE69615554D1 (de) | 2001-10-31 |
EP1059310A2 (en) | 2000-12-13 |
CN1188481A (zh) | 1998-07-22 |
DE69615554T2 (de) | 2002-05-08 |
EP1059310A3 (en) | 2004-08-04 |
AU5314496A (en) | 1996-11-07 |
RU2169735C2 (ru) | 2001-06-27 |
EP1059310B1 (en) | 2006-01-11 |
MX9707982A (es) | 1998-02-28 |
CN1068331C (zh) | 2001-07-11 |
DE69635719D1 (de) | 2006-04-06 |
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