WO2013146337A1 - 小粒径固体状ポリメチルアルミノキサン組成物の製造方法 - Google Patents
小粒径固体状ポリメチルアルミノキサン組成物の製造方法 Download PDFInfo
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- WO2013146337A1 WO2013146337A1 PCT/JP2013/057355 JP2013057355W WO2013146337A1 WO 2013146337 A1 WO2013146337 A1 WO 2013146337A1 JP 2013057355 W JP2013057355 W JP 2013057355W WO 2013146337 A1 WO2013146337 A1 WO 2013146337A1
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- WIPO (PCT)
- Prior art keywords
- polymethylaluminoxane composition
- composition
- solid
- solution
- polymethylaluminoxane
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 305
- 239000007787 solid Substances 0.000 title claims abstract description 206
- 239000002245 particle Substances 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical group C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 claims abstract description 92
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 46
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 229920000098 polyolefin Polymers 0.000 claims abstract description 18
- 230000005587 bubbling Effects 0.000 claims abstract description 14
- 239000011261 inert gas Substances 0.000 claims abstract description 12
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 10
- 239000002685 polymerization catalyst Substances 0.000 claims abstract description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 114
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 39
- -1 alkylaluminum compound Chemical class 0.000 claims description 35
- 239000003054 catalyst Substances 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 19
- 150000003623 transition metal compounds Chemical class 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 15
- 150000001336 alkenes Chemical class 0.000 claims description 14
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 14
- 150000002430 hydrocarbons Chemical group 0.000 claims description 13
- 150000002894 organic compounds Chemical class 0.000 claims description 12
- 125000001485 cycloalkadienyl group Chemical group 0.000 claims description 11
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 8
- 125000000962 organic group Chemical group 0.000 claims description 8
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 125000005103 alkyl silyl group Chemical group 0.000 claims description 7
- 125000004104 aryloxy group Chemical group 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 125000003282 alkyl amino group Chemical group 0.000 claims description 6
- 125000005277 alkyl imino group Chemical group 0.000 claims description 6
- 125000005843 halogen group Chemical group 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 125000004429 atom Chemical group 0.000 claims description 4
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims description 3
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 230000037048 polymerization activity Effects 0.000 abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 7
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000011859 microparticle Substances 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 description 70
- 229920000642 polymer Polymers 0.000 description 32
- 239000002904 solvent Substances 0.000 description 28
- 238000011156 evaluation Methods 0.000 description 26
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 23
- 239000005977 Ethylene Substances 0.000 description 23
- 238000005259 measurement Methods 0.000 description 22
- 239000010419 fine particle Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 239000004698 Polyethylene Substances 0.000 description 17
- 238000005160 1H NMR spectroscopy Methods 0.000 description 15
- 238000004090 dissolution Methods 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- 239000002253 acid Substances 0.000 description 11
- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 11
- 238000001556 precipitation Methods 0.000 description 11
- 238000003786 synthesis reaction Methods 0.000 description 10
- 238000005979 thermal decomposition reaction Methods 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 8
- QRUYYSPCOGSZGQ-UHFFFAOYSA-L cyclopentane;dichlorozirconium Chemical compound Cl[Zr]Cl.[CH]1[CH][CH][CH][CH]1.[CH]1[CH][CH][CH][CH]1 QRUYYSPCOGSZGQ-UHFFFAOYSA-L 0.000 description 8
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 8
- 239000003446 ligand Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- 125000004122 cyclic group Chemical group 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000005711 Benzoic acid Substances 0.000 description 5
- 235000010233 benzoic acid Nutrition 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical compound CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- VPGLGRNSAYHXPY-UHFFFAOYSA-L zirconium(2+);dichloride Chemical compound Cl[Zr]Cl VPGLGRNSAYHXPY-UHFFFAOYSA-L 0.000 description 4
- 229910007926 ZrCl Inorganic materials 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 238000007323 disproportionation reaction Methods 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 2
- UOFGSWVZMUXXIY-UHFFFAOYSA-N 1,5-Diphenyl-3-thiocarbazone Chemical compound C=1C=CC=CC=1N=NC(=S)NNC1=CC=CC=C1 UOFGSWVZMUXXIY-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 2
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 235000011054 acetic acid Nutrition 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000000538 analytical sample Substances 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000003426 co-catalyst Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 2
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- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 229940117389 dichlorobenzene Drugs 0.000 description 2
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
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- LGRFSURHDFAFJT-UHFFFAOYSA-N phthalic anhydride Chemical compound C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000000790 scattering method Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
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- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
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- NOGFHTGYPKWWRX-UHFFFAOYSA-N 2,2,6,6-tetramethyloxan-4-one Chemical compound CC1(C)CC(=O)CC(C)(C)O1 NOGFHTGYPKWWRX-UHFFFAOYSA-N 0.000 description 1
- BHKAWXZKFKVZLK-UHFFFAOYSA-N 2,3-ditert-butyl-6-methylphenol Chemical compound CC1=CC=C(C(C)(C)C)C(C(C)(C)C)=C1O BHKAWXZKFKVZLK-UHFFFAOYSA-N 0.000 description 1
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- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
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- 238000005481 NMR spectroscopy Methods 0.000 description 1
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- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
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- YHASWHZGWUONAO-UHFFFAOYSA-N butanoyl butanoate Chemical compound CCCC(=O)OC(=O)CCC YHASWHZGWUONAO-UHFFFAOYSA-N 0.000 description 1
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- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
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- 235000015165 citric acid Nutrition 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- HLEXTMGMJVVHSM-UHFFFAOYSA-L dichlorozirconium(2+);1,9-dihydrofluoren-1-ide Chemical compound Cl[Zr+2]Cl.C1=C[C-]=C2CC3=CC=CC=C3C2=C1.C1=C[C-]=C2CC3=CC=CC=C3C2=C1 HLEXTMGMJVVHSM-UHFFFAOYSA-L 0.000 description 1
- LOKCKYUBKHNUCV-UHFFFAOYSA-L dichlorozirconium;methylcyclopentane Chemical compound Cl[Zr]Cl.C[C]1[CH][CH][CH][CH]1.C[C]1[CH][CH][CH][CH]1 LOKCKYUBKHNUCV-UHFFFAOYSA-L 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
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- OAFMYIADTCIEFV-UHFFFAOYSA-N hexane;triethylalumane Chemical compound CCCCCC.CC[Al](CC)CC OAFMYIADTCIEFV-UHFFFAOYSA-N 0.000 description 1
- PKHMTIRCAFTBDS-UHFFFAOYSA-N hexanoyl hexanoate Chemical compound CCCCCC(=O)OC(=O)CCCCC PKHMTIRCAFTBDS-UHFFFAOYSA-N 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- KKHUSADXXDNRPW-UHFFFAOYSA-N malonic anhydride Chemical compound O=C1CC(=O)O1 KKHUSADXXDNRPW-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 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
- 229910052763 palladium Inorganic materials 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- DUCKXCGALKOSJF-UHFFFAOYSA-N pentanoyl pentanoate Chemical compound CCCCC(=O)OC(=O)CCCC DUCKXCGALKOSJF-UHFFFAOYSA-N 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- XMGMFRIEKMMMSU-UHFFFAOYSA-N phenylmethylbenzene Chemical group C=1C=CC=CC=1[C]C1=CC=CC=C1 XMGMFRIEKMMMSU-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
Classifications
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/06—Aluminium compounds
- C07F5/061—Aluminium compounds with C-aluminium linkage
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- 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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- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
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- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
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- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
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- 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
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/10—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L85/00—Compositions of macromolecular compounds obtained by reactions forming a linkage in the main chain of the macromolecule containing atoms other than silicon, sulfur, nitrogen, oxygen and carbon; Compositions of derivatives of such polymers
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- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65925—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to a method for producing a small particle size product of a solid polymethylaluminoxane composition used for polymerization of olefins, a polymerization catalyst using the obtained solid polymethylaluminoxane composition as a catalyst component, and a method for producing a polyolefin. It is about.
- a solution-like polyaluminoxane composition is a condensation product generally prepared by partial hydrolysis reaction of an organoaluminum compound, and a co-catalyst that efficiently activates a transition metal compound as a main catalyst in the production of an olefin polymer. It is known to be useful as an ingredient. It is widely known that a polymethylaluminoxane composition using trimethylaluminum as a raw material organoaluminum compound exhibits particularly excellent promoter performance, and this composition is usually dissolved in an aromatic hydrocarbon solvent such as toluene. Handled in solution.
- the polymethylaluminoxane composition exhibits excellent promoter performance, but usually the main catalyst such as a metallocene compound and the polymethylaluminoxane composition are handled in a state dissolved in a solvent, so that the morphology control of the polymer to be produced cannot be performed. For this reason, not only does the handling of the polymer become difficult, but fouling due to the adhesion of the polymer to the polymerization reactor or the like is very likely to occur.
- a supported solid polymethylaluminoxane composition in which a polymethylaluminoxane composition is supported on a solid inorganic carrier such as silica, alumina, or magnesium chloride is applied to suspension polymerization or gas phase polymerization.
- a solid inorganic carrier such as silica, alumina, or magnesium chloride
- Addition of the third component for obtaining a solid polymethylaluminoxane composition may cause problems such as toxicity depending on the use of the polymer, and should be avoided. From such an idea, there is a proposal relating to a method for obtaining a solid polymethylaluminoxane composition only by adding an insoluble or hardly soluble solvent to the solution-like polymethylaluminoxane composition.
- Patent Documents 1 and 5 n-hexane or n-decane is added to a toluene solution of a polymethylaluminoxane composition at room temperature to precipitate a solid polymethylaluminoxane composition, and then the solvent is removed by a vacuum pump. Thus, a method for increasing the amount of precipitation has been proposed.
- the morphology of the solid polymethylaluminoxane composition greatly affects the properties of the prepared olefin polymer.
- the solid polymethylaluminoxane composition is fine particles and the particle diameter is more uniform because the prepared olefin polymer becomes more uniform particles.
- the particle size of the solid polymethylaluminoxane composition described in Examples of Patent Document 1 was 210 to 350 ⁇ m, and the particle diameter of the solid polymethylaluminoxane composition described in Patent Document 5 was 28 to 47 ⁇ m.
- the solid polymethylaluminoxane composition generally has a problem that the polymerization activity is lower than that of the solution-like polymethylaluminoxane composition. Furthermore, regarding the yield of the solid polymethylaluminoxane composition, the total amount of polymethylaluminoxane contained in the solution polymethylaluminoxane composition is not recovered as the solid polymethylaluminoxane composition, and the yield is low. This leads to high costs. Further, as in the methods described in Patent Documents 1 and 5, when a solid polymethylaluminoxane composition is obtained, a method of removing a large amount of solvent from a solution-like polymethylaluminoxane composition by a vacuum pump is at a laboratory level.
- Solid polymethylaluminoxane compositions that are relatively fine particles with a volume-based median diameter in the range of 5 to 50 ⁇ m and a more uniform particle diameter using only MAO without using a carrier such as SiO 2.
- a method for efficient preparation was found.
- Patent Document 7 The obtained solid polymethylaluminoxane composition has relatively fine particles and not only a uniform particle size but also a very high polymerization activity when preparing an olefin polymer. It has a feature called. Depending on the polymerization conditions, an activity comparable to that of the solution-like polymethylaluminoxane composition may be exhibited.
- the yield of the polymethylaluminoxane composition is high when preparing the solid polymethylaluminoxane composition from the solution-like polymethylaluminoxane composition, and the solvent is removed from the solution-like polymethylaluminoxane composition by a vacuum pump. Can be provided.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-95810
- Patent Document 2 Japanese Patent Application Laid-Open No. 8-319309
- Patent Document 3 Japanese Patent Application Laid-Open No. 7-300486
- Patent Document 4 Japanese Patent Application Laid-Open No. 7-70144
- Patent Document 5 Japanese Patent Publication No. 7-42301
- Patent Document 6 WO 97/23288 (Japanese Patent Publication 2000-505785)
- Patent Document 7 WO2010 / 055652 (PCT / JP2009 / 006019)
- Patent Documents 1 to 7 The entire description of Patent Documents 1 to 7 is specifically incorporated herein by reference.
- the present invention provides a method for producing a high-quality olefin polymer industrially efficiently and inexpensively using the above-mentioned fine particle size solid polymethylaluminoxane composition and a transition metal compound. That is one of the issues.
- the present invention for solving the above problems is as follows.
- (i) the aluminum content is in the range of 36 wt% to 43 wt%, and (ii) the mole fraction of methyl groups derived from trimethylaluminum moieties relative to the total number of moles of methyl groups is 12 mol% or less, and (iii) A solid polymethylaluminoxane composition that is particulate and has a volume-based median diameter in the range of 0.1 ⁇ m to less than 5 ⁇ m.
- the solubility in n-hexane at 25 ° C. is 0 to 2 mol%, and Solubility in toluene at 25 ° C is 0-2 mol%
- a solution-like polymethylaluminoxane composition an aromatic hydrocarbon solution containing trimethylaluminum
- Precipitating a solid polymethylaluminoxane composition containing aluminoxane and trimethylaluminum, and bubbling dry inert gas through the solution polymethylaluminoxane composition prior to step (a) and / or step (a) The solid polymethylaluminoxane composition according to any one of [1] to [6], wherein a dry inert gas is bubbled through the solution-like polymethylaluminoxane composition during at least part of the period.
- n an integer of 1 to 50.
- step (a) The production method according to [8], wherein the solution-like polymethylaluminoxane composition before heating has a mole fraction of methyl groups derived from trimethylaluminum moieties relative to the total number of moles of methyl groups of 15 mol% or less.
- step (a) heating temperature in the range of 80 ° C to 200 ° C, and (ii) From a heating time of 5 minutes to less than 24 hours, The production method according to [8] or [9], wherein an appropriate heating temperature and heating time are selected to precipitate a solid polymethylaluminoxane composition.
- the solution-like polymethylaluminoxane composition used as a raw material in step (a) is obtained by thermally decomposing an alkylaluminum compound having an aluminum-oxygen-carbon bond.
- the alkylaluminum compound having an aluminum-oxygen-carbon bond is prepared by a reaction between trimethylaluminum and an oxygen-containing organic compound.
- the production method according to [12] [11] The production method according to [11], wherein the oxygen-containing organic compound is an aliphatic or aromatic carboxylic acid represented by the general formula (III).
- R 1- (COOH) n (III) (Wherein R 1 represents a C1-C20 linear or branched alkyl group, alkenyl group, or aryl hydrocarbon group, and n represents an integer of 1-5.) [13] The reaction between the trimethylaluminum and the oxygen-containing organic compound is performed so that the molar ratio of the aluminum atom in the trimethylaluminum to the oxygen atom in the oxygen-containing compound is in the range of 1.15 to 1.4: 1, [11] or [12] The production method according to [12].
- MR 5 R 6 R 7 R 8 (IV) (In the formula, M represents a transition metal element, and R 5 , R 6 , R 7 and R 8 jointly represent an organic group having one or two cycloalkadienyl skeletons, or independently.
- a method for producing a polyolefin comprising polymerizing an olefin using the catalyst according to [14].
- a solid polymethylaluminoxane composition having fine particles of less than 5 ⁇ m and uniform particle size can be obtained very simply and with a high yield.
- the solid polymethylaluminoxane composition of the present invention is used as a co-catalyst for polymerization, extremely high polymerization activity is exhibited.
- the solid polymethylaluminoxane composition of the present invention has very low solvent solubility, it can remarkably suppress fouling of the reactor when used in the polymerization, and a polymer having a uniform particle size can be obtained. Obtainable.
- Solid polymethylaluminoxane composition The solid polymethylaluminoxane composition of the present invention is (i) the aluminum content is in the range of 36 wt% to 43 wt%, and (ii) the mole fraction of methyl groups derived from the trimethylaluminum moiety relative to the total number of moles of methyl groups is 12 mol% or less, (iii) It is particulate and the volume-based median diameter is in the range of 0.1 ⁇ m to less than 5 ⁇ m.
- the solid polymethylaluminoxane composition of the present invention contains polymethylaluminoxane and trimethylaluminum.
- the coexistence state of polymethylaluminoxane and trimethylaluminum is not necessarily clear, but polymethylaluminoxane and trimethylaluminum are contained in a composition ratio and existing state satisfying the above (i) and (ii).
- the polymethylaluminoxane can contain, for example, a unit represented by the following general formula (I). -[(Me) AlO] n- (I) (In the formula, n represents an integer of 10 to 50.)
- n is a single polymethylaluminoxane (n is a specific integer) within the above range or a plurality of polymethylaluminoxanes (a plurality of integers where n is different). Means containing methylaluminoxane.
- n is an integer of 10 to 50 is that n of the polymethylaluminoxane in the solution-like polymethylaluminoxane composition used as the raw material for the solid polymethylaluminoxane composition is 10 to 50.
- n of polymethylaluminoxane in the solid polymethylaluminoxane composition substantially corresponds to n of the solution-like polymethylaluminoxane composition used as a raw material.
- the polymethylaluminoxane in the present invention may be a chain structure, a cyclic structure or a branched structure as long as it contains the above unit.
- the theoretical amount of aluminum content is about 46 to 47% by mass, and the theoretical amount of aluminum content in trimethylaluminum is about 38% by mass. That is, when the aluminum content in the solid polymethylaluminoxane composition exceeds 46% by mass, the solid polymethylaluminoxane composition consists only of polymethylaluminoxane having a cyclic structure, and trimethylaluminum is hardly present. It is estimated that it does not contain impurities such as a solvent.
- the theoretical amount of aluminum content varies depending on the n number of general formula (I), but is smaller than that of a cyclic structure.
- the solid polymethylaluminoxane composition of the present invention contains a polymethylaluminoxane having a linear structure and a branched structure in addition to the polymethylaluminoxane having a cyclic structure, and further includes a residual solvent in addition to trimethylaluminum. Since impurities are included, the solid polymethylaluminoxane composition of the present invention has an aluminum content in the range of 36% by mass to 43% by mass, as indicated by (i). The smaller the aluminum content, the greater the proportion of trimethylaluminum, and the greater the aluminum content, the lower the proportion of trimethylaluminum.
- the solid polymethylaluminoxane composition has the performance of good particle size uniformity and robustness that does not easily break due to cracks, etc. Can have.
- the aluminum content of the present invention is less than 36% by mass, it indicates that drying is insufficient and impurities such as a solvent are included excessively.
- the aluminum content exceeds 43% by mass, as described above, it is estimated that the aluminum content is mainly composed of polymethylaluminoxane having a cyclic structure, and the trimethylaluminum and solvent impurities are not included.
- the composition itself is different from the solid polymethylaluminoxane composition obtained in (1).
- the lower limit of the aluminum content is preferably 37% by mass, more preferably 38% by mass, and the upper limit is preferably 42% by mass, more preferably 41% by mass.
- the range of the aluminum content is preferably in the range of 38% by mass to 41% by mass.
- the aluminum content of the solution-like polymethylaluminoxane composition and the solid aluminoxane composition prepared in the present invention is, for example, after adding an excessive amount of disodium ethylenediaminetetraacetate to a solution hydrolyzed with a 0.5 N aqueous sulfuric acid solution. It can be determined by back titrating with zinc sulfate using dithizone as an indicator. When the measurement concentration is dilute, the measurement can also be performed using atomic absorption spectrometry.
- the total number of moles of methyl groups in the mole fraction of methyl groups derived from trimethylaluminum sites relative to the total number of moles of methyl groups shown in (ii) is the methyl group derived from polymethylaluminoxane and the methyl group derived from trimethylaluminum.
- the total number of moles of the group, the number of moles of the methyl group derived from the trimethylaluminum site is the number of moles of the methyl group derived from the trimethylaluminum site, and the mole fraction of the methyl group derived from the trimethylaluminum site is 12 mol% It is as follows.
- a low molar fraction of methyl groups derived from trimethylaluminum moieties means that there are few methyl groups derived from trimethylaluminum moieties contained in polymethylaluminoxane and there are many states of aluminum in the polymethylaluminoxane chain.
- the molar fraction of methyl groups derived from the trimethylaluminum moiety is preferably 11 mol% or less.
- the lower limit of the molar fraction of the methyl group derived from the trimethylaluminum moiety may be 6 mol%, for example, because it depends on the solution-like polymethylaluminoxane that is a raw material capable of controlling the shape of the solid polymethylaluminoxane. Is 8 mol%.
- the polymethylaluminoxane composition used in the present invention contains trimethylaluminum inherent as an unreacted raw material.
- the amount of trimethylaluminum present in the polymethylaluminoxane composition depends on the molar fraction of methyl groups derived from polymethylaluminoxane and trimethylaluminum (abbreviated as Me (PMAO) and Me (TMAL), respectively).
- Me polymethylaluminoxane
- TMAL trimethylaluminum
- the molar fraction of each component in the polymethylaluminoxane composition can be determined from the area ratio attributed to each component by 1 H-NMR measurement of the polymethylaluminoxane composition.
- the specific method for determining the molar fraction of Me (PMAO) and Me (TMAL) in the polymethylaluminoxane composition is exemplified in the examples.
- the solid polymethylaluminoxane composition of the present invention is in the form of particles, and the uniformity represented by the following formula is preferably 0.45 or less.
- Uniformity ⁇ Xi
- the uniformity of the solid polymethylaluminoxane composition of the present invention which is in the form of particles is 0.45 or less, so that an olefin polymer having a uniform particle size is obtained using the solid polymethylaluminoxane composition and the transition metal compound. be able to.
- the uniformity is preferably 0.4 or less, more preferably 0.35 or less, and still more preferably 0.3 or less. As the uniformity value is lower, the resulting olefin polymer tends to be particles having a uniform particle size.
- the uniformity is used as an index of the catalyst particle size distribution. In this index, the larger the value, the wider the distribution.
- the lower limit of the uniformity can be, for example, 0.15 considering that the solid polymethylaluminoxane composition is controlled in particle shape by self-association.
- the solid polymethylaluminoxane composition of the present invention can be prepared in a particulate form with a volume-based median diameter in the range of 0.1 ⁇ m to less than 5 ⁇ m.
- the volume-based median diameter of the solid polymethylaluminoxane composition of the present invention which is in the form of particles is in the above range, so that a good polymer bulk density can be obtained using the solid polymethylaluminoxane composition and the transition metal compound. It is possible to obtain an olefin polymer that is retained and in which fine polymer production is suppressed.
- the volume-based median diameter of the solid polymethylaluminoxane composition is generally considered to be about 5 to 200 ⁇ m from the viewpoint of improving powder properties such as bulk density of the resulting olefin polymer.
- it is desirable that the fine particle is less than 5 ⁇ m.
- the volume-based median diameter of the solid polymethylaluminoxane composition of the present invention is preferably 0.1 ⁇ m to less than 5 ⁇ m, preferably in the range of 0.1 to 4 ⁇ m, more preferably 0.1 to It is in the range of 3 ⁇ m, more preferably in the range of 0.1 to 2 ⁇ m, more preferably in the range of 0.1 to 1 ⁇ m.
- the volume-based median diameter and particle size distribution of the solid polymethylaluminoxane composition of the present invention can be determined by a laser diffraction / scattering method in a dry nitrogen atmosphere using Mastersizer 2000 Hydro S from Malvern Instrument Ltd. Specific methods are described in the examples.
- the solid polymethylaluminoxane composition of the present invention is preferably particulate and has a specific surface area in the range of 10 to 25 m 2 / mmol-Al.
- specific surface area of the solid polymethylaluminoxane composition of the present invention in the form of particles is in the above range, good activity in polymerization of olefinic compounds using the solid polymethylaluminoxane composition and a transition metal compound Can be shown.
- Good activity here means that it is equivalent to the activity obtained when a polymethylaluminoxane composition in the form of a solution is preferably used.
- the good polymerization activity of the solid polymethylaluminoxane composition of the present invention is due not only to the specific surface area but also to the composition and structure other than the specific surface area of the solid polymethylaluminoxane composition.
- the specific surface area is considered to affect the activation by contact between the solid polymethylaluminoxane composition and the transition metal compound including the metallocene compound as the main catalyst when used for the polymerization of olefins. That is, generally, the activation efficiency of the main catalyst is poor when the specific surface area is small, and the activation efficiency is high when the specific surface area is large.
- the specific surface area is too high, it is considered that the inside of the solid polymethylaluminoxane composition becomes too porous and the strength of the solid decreases.
- it is preferably in the range of 10 to 25 m 2 / mmol-Al, more preferably in the range of 13 to 22 m 2 / mmol-Al.
- the specific surface area of the solid polymethylaluminoxane composition of the present invention can be determined using the BET adsorption isotherm and utilizing the gas adsorption phenomenon on the solid surface. Specific methods are described in the examples.
- the solid polymethylaluminoxane composition of the present invention preferably has a solubility in n-hexane at 25 ° C. of 0 to 2 mol% and a solubility in toluene at 25 ° C. of 0 to 2 mol%.
- the solid polymethylaluminoxane composition of the present invention is characterized by a very low dissolution rate with respect to n-hexane and toluene maintained at a temperature of 25 ° C.
- a range of 0 to 2 mol%, preferably 0 to 1 mol%, particularly preferably 0 to 0.2 mol% with respect to n-hexane is satisfied.
- the range of 0 to 2 mol%, preferably 0 to 1 mol%, particularly preferably 0 to 0.5 mol% with respect to toluene is satisfied.
- the measurement of the dissolution ratio in a solvent can be carried out according to the method described in JP-B-7-42301. Specifically, it is described in Examples.
- the solid polymethylaluminoxane composition of the present invention does not contain SiO 2 .
- the solid polymethylaluminoxane composition of the present invention does not actively contain SiO 2 at least during the production process. Solid polymethylaluminoxane composition of the present invention, by not containing SiO 2, it is possible to avoid the drawbacks solid polymethylaluminoxane composition containing SiO 2 has.
- the method for producing a solid polymethylaluminoxane composition of the present invention comprises: (a) an aromatic hydrocarbon solution containing polymethylaluminoxane containing a unit represented by the following general formula (II) and trimethylaluminum (solution-like polymethylaluminum). Aluminoxane composition) is heated to precipitate a solid polymethylaluminoxane composition containing polymethylaluminoxane and trimethylaluminum, and the solution-like polymethylaluminoxane composition is dry-inactivated prior to step (a).
- n is a singular number within the above range (where n is a specific integer), or n is a plurality of types within the above range (a plurality of n different from each other).
- An integer) of polymethylaluminoxane is that the degree of polymerization of aluminoxane based on the molecular weight determined from the freezing point depression in benzene is in the range of 10 to 50.
- the solution-like polymethylaluminoxane composition used as a raw material in the production method of the present invention can be prepared, for example, by the method described in Patent Document 6.
- the method described in Patent Document 6 is a method for preparing a polymethylaluminoxane composition without hydrolyzing trimethylaluminum. Specifically, it is a method for obtaining a solution-like polymethylaluminoxane composition by thermally decomposing an alkylaluminum compound having an aluminum-oxygen-carbon bond.
- aromatic hydrocarbon used in the solution-like polymethylaluminoxane composition examples include benzene, toluene, ethylbenzene, propylbenzene, butylbenzene, xylene, chlorobenzene, dichlorobenzene and the like. However, it is not limited to these examples, and any aromatic hydrocarbon can be used as a solvent for the solution-like polymethylaluminoxane composition.
- the alkylaluminum compound having an aluminum-oxygen-carbon bond is preferably prepared by a reaction between trimethylaluminum and an oxygen-containing organic compound.
- the oxygen-containing organic compound is preferably an aliphatic or aromatic carboxylic acid represented by the general formula (III).
- R 1- (COOH) n (III) (Wherein R 1 represents a C1-C20 linear or branched alkyl group, alkenyl group, or aryl hydrocarbon group, and n represents an integer of 1-5.)
- the oxygenated compound used in the reaction of trimethylaluminum with an aluminum-oxygen-carbon bond having an aluminum-oxygen-carbon bond to give a solution-like polymethylaluminoxane composition by thermal decomposition reaction is, for example, a carboxyl group having a COOH group. It is an acid compound and a carboxylic anhydride. In preparing the solution-like polymethylaluminoxane composition, these may be used alone or in combination with a plurality of compounds.
- oxygen-containing compounds include formic acid, acetic acid, propionic acid, orthobutyric acid, orthovaleric acid, orthocaproic acid, orthoenanthic acid, orthocaprylic acid, orthopelargonic acid, orthocapric acid, ortholauric acid, and orthomyristic acid , Orthostearic acid, succinic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, benzoic acid, phthalic acid, citric acid, tartaric acid, lactic acid, malic acid, toluic acid, Toluic anhydride, acetic anhydride, propionic anhydride, positive butyric anhydride, positive valeric anhydride, positive caproic anhydride, succinic anhydride, malonic anhydride, succinic anhydride, glutaric anhydride, benzoic acid An acid anhydride, a phthalic acid anhydride,
- acetic acid acetic anhydride
- propionic acid propionic anhydride
- benzoic acid benzoic anhydride
- phthalic acid phthalic anhydride
- toluic acid and toluic acid anhydride.
- the molar ratio of the aluminum atom contained in trimethylaluminum used for the synthesis of the solution-like polymethylaluminoxane composition and the oxygen atom of the oxygen-containing organic compound is arbitrarily selected for the purpose of controlling the molecular weight of polymethylaluminoxane and the residual amount of trimethylaluminum Can be set.
- the ratio of the molar amount of aluminum atoms contained in trimethylaluminum to oxygen atoms in the oxygen-containing organic compound can be arbitrarily set in the range of 0.5 to 3.0: 1.
- the molar ratio is preferably in the range of 1.0 to 1.7: 1. More preferably, it is in the range of 1.15 to 1.4: 1.
- the thermal decomposition temperature of the aluminum compound having an aluminum-oxygen-carbon bond which is a precursor of the solution-like polymethylaluminoxane composition, can be carried out at any temperature between 20 and 90 ° C. From the viewpoint of easy operability and safety of the reaction and an appropriate reaction time, it is preferably 30 ° C. to 80 ° C., more preferably 60 ° C. to 80 ° C.
- the thermal decomposition time of the aluminum compound having an aluminum-oxygen-carbon bond varies depending on the thermal decomposition temperature and the composition of the raw material (for example, Al / O molar ratio), but is, for example, in the range of 5 to 100 hours. If the temperature is low, it takes a long time. If the temperature is high, the thermal decomposition can be completed in a short time.
- the thermal decomposition temperature exceeds 100 ° C., it causes a remarkable formation of a gel-like product and decreases the recovery yield of the polymethylaluminoxane homogeneous solution.
- the thermal decomposition temperature is lower than 50 ° C., there may be a case where a significant decrease in productivity is caused due to an increase in the polymethylaluminoxane formation reaction time.
- an alkylaluminum compound having an aluminum-oxygen-carbon bond is thermally decomposed to prepare a solution-like polymethylaluminoxane composition, and the prepared solution-like polymethylaluminoxane composition is heated under predetermined conditions.
- a solid methylaluminoxane composition is obtained.
- a solid methylaluminoxane composition having a uniform particle size cannot be obtained by directly heating the raw material of the solution-like polymethylaluminoxane composition to 100 ° C.
- the concentration of polymethylaluminoxane in the inert hydrocarbon solvent may be in the range of 6 to 40% by weight, preferably 6 to 30% by weight, and more preferably 10 to 25% by weight.
- a solution-like polymethylaluminoxane composition can be obtained with a quantitative reaction yield.
- the emphasis is placed on the fact that the amount of trimethylaluminum in the solution-like polymethylaluminoxane composition can be controlled.
- trimethylaluminum does not act as an activator for transition metal compounds such as metallocene compounds, it has been an important problem to control the amount of trimethylaluminum remaining in the solution-like polymethylaluminoxane composition.
- the solution-form polymethylaluminoxane composition used as a raw material has a solid polymethylaluminoxane yield of 15 mol% or less of a methyl group derived from a trimethylaluminum moiety with respect to the total number of moles of methyl groups. From the viewpoint of improving the ratio.
- the mole fraction of methyl groups derived from trimethylaluminum moieties relative to the total number of moles of methyl groups is preferably 14 mol% or less.
- the lower limit of the mole fraction of methyl groups derived from the aluminoxane moiety relative to the total number of moles of methyl groups is approximately 6 mol%.
- the solution-like polymethylaluminoxane composition prepared by the hydrolysis method has a molar fraction of methyl groups derived from aluminoxane sites with respect to the total number of moles of methyl groups of 40 to 50 mol%. It is difficult to lower the mole fraction of methyl groups derived from trimethylaluminum sites relative to the total number of moles of methyl groups in the methylaluminoxane composition below 15 mol%.
- the molar ratio of the aluminum atom contained in trimethylaluminum to the oxygen atom of the oxygen-containing organic compound was 1.15, so that the aluminoxane relative to the total number of moles of methyl groups.
- the lower limit of the molar fraction of methyl groups derived from the site can be 8 mol%, and the performance of the resulting solid polymethylaluminoxane composition is good.
- the molar ratio of the aluminum atom of trimethylaluminum to the oxygen atom of the oxygen-containing organic compound is 1.10
- the molar fraction of the methyl group derived from the trimethylaluminum moiety with respect to the total number of moles of the methyl group can be 5.2 mol%.
- the performance of the obtained solid polymethylaluminoxane composition is poor.
- the content is preferably 8 mol% to 14 mol%.
- the aromatic hydrocarbon used in the production method of the present invention is not particularly limited, and examples thereof include benzene, toluene, ethylbenzene, propylbenzene, butylbenzene, xylene, chlorobenzene, dichlorobenzene and the like.
- step (a) (i) heating temperature in the range of 80 ° C to 200 ° C, and (ii) From a heating time of 5 minutes to less than 24 hours, A suitable heating temperature and heating time are selected to precipitate the solid polymethylaluminoxane composition.
- the aromatic hydrocarbon solution containing polymethylaluminoxane containing the unit represented by the general formula (II) and trimethylaluminum (solution-like polymethylaluminoxane composition) is continuously heated at a predetermined temperature, the polymethylaluminoxane and The present inventors have found that a solid polymethylaluminoxane composition containing trimethylaluminum precipitates in the solution in a uniform particle size.
- the predetermined temperature is in the range of 80 ° C. to 200 ° C., and the time required for the precipitation varies depending on the temperature, but is, for example, in the range of 5 minutes or more and less than 24 hours.
- step (a) Prior to step (a), dry inert gas is bubbled through the solution polymethylaluminoxane composition, or dry inert gas is added to the solution polymethylaluminoxane composition during at least a portion of step (a). Bubbling or bubbling dry inert gas to the solution polymethylaluminoxane composition prior to step (a) and drying to the solution polymethylaluminoxane composition during at least a portion of step (a) Bubble inert gas.
- the present inventors have found that the particle diameter of the resulting solid polymethylaluminoxane composition is reduced by bubbling the dry inert gas. It was.
- the dry inert gas generally means nitrogen, helium, or argon gas
- the dry gas means a gas having a dew point of ⁇ 65 ° C. or lower.
- Bubbling can be supplied, for example, through a mass flow meter by a dip tube inserted into the solution polymethylaluminoxane composition.
- the supply gas speed is preferably set in the range of 100 ml / min to 2 L / min with respect to 1 L of solution-like polymethylaluminoxane.
- a more preferred range is from 500 ml / min to 1.5 L / min. By being in this range, an effect of efficiently reducing the particle diameter can be recognized.
- the supply time can be set in the range of 10 min to 2 hours.
- the range is preferably from 10 min to 1 hour. If it is shorter than this range, the effect of small particle size is difficult to recognize, and if it is longer, escape due to entrainment of the solvent toluene becomes remarkable and particle size control becomes difficult.
- the supply gas speed is preferably set in the range of 1 ml / min to 50 ml / min with respect to 1 L of the solution-like polymethylaluminoxane solution. More preferably, it is 1 ml / min to 10 ml / min, still more preferably 1 ml / min to 5 ml / min.
- gas is blown during heating, it is preferable that the gas itself is heated to the heating reaction temperature.
- the gas supply time is the heat treatment time of the solution-like polymethylaluminoxane.
- the heating temperature may be 80 to 200 ° C, preferably 90 to 150 ° C, more preferably 100 to 130 ° C. is there.
- the time is preferably 1 to 20 hours, more preferably 5 to 12 hours in this temperature range.
- the temperature is low, the time required for solid polymethylaluminoxane composition particle precipitation becomes long, and when the temperature is high, the time required for solid polymethylaluminoxane composition particle precipitation tends to be short.
- the present invention includes an olefin polymerization catalyst.
- the polymerization catalyst for olefins of the present invention contains the solid polymethylaluminoxane composition of the present invention and a transition metal compound represented by the following general formula (IV) as catalyst components.
- MR 5 R 6 R 7 R 8 (IV) (In the formula, M represents a transition metal element, and R 5 , R 6 , R 7 and R 8 jointly represent an organic group having one or two cycloalkadienyl skeletons, or independently.
- hydrocarbon groups having 1 to 20 carbon atoms, alkoxy groups, aryloxy groups, alkylsilyl groups, alkylamide groups, alkylimide groups, alkylamino groups, alkylimino groups, hydrogen atoms and halogen atoms. (Specifies an organic group or atom of a species.)
- the solid polymethylaluminoxane composition of the present invention can be used as a polymerization catalyst in combination with a catalyst known as an olefin polymerization catalyst.
- a catalyst known as an olefin polymerization catalyst examples include transition metal compounds.
- Such a transition metal compound can be one represented by the above general formula (IV).
- M in the general formula (IV) is titanium, zirconium, hafnium, chromium, vanadium, manganese, iron, cobalt, nickel, or palladium, preferably titanium, zirconium, chromium, iron, nickel. .
- preferred transition metal compounds are compounds in which R 5 , R 6 , R 7 and R 8 jointly represent an organic group having one or two cycloalkadienyl skeletons. That is, it is a metallocene compound in which one or two ligands having a cycloalkadienyl skeleton are coordinated.
- ligands having a cycloalkadienyl skeleton include cyclopentadienyl, methylcyclopentadienyl, ethylcyclopentadienyl, butylcyclopentadienyl, dimethylcyclopentadienyl, and pentamethyl.
- alkyl-substituted cyclopentadienyl group such as cyclopentadienyl group, indenyl group, and fluorenyl group can be exemplified, and the cycloalkadienyl group is bridged by a divalent substituted alkylene group, a substituted silylene group or the like. Also good.
- the ligand other than the ligand having a cycloalkadienyl skeleton includes a hydrocarbon group having 1 to 20 carbon atoms, an alkoxy group, an aryloxy group, an alkylsilyl group, an alkylamide group, an alkylimide group, an alkylamino group, An alkylimino group, a halogen atom or a hydrogen atom; That is, R 5 , R 6 , R 7 and R 8 are independently a hydrocarbon group having 1 to 20 carbon atoms, alkoxy group, aryloxy group, alkylsilyl group, alkylamide group, alkylimide group, alkylamino group.
- an organic group or atom selected from the group consisting of an alkylimino group, a hydrogen atom and a halogen atom.
- a group containing a hydrocarbon residue such as an alkyl group other than the hydrocarbon group having 1 to 20 carbon atoms (alkoxy group, aryloxy group, alkylsilyl group, alkylamide group, alkylimide group, alkylamino group, alkylimino group )
- the hydrocarbon residue such as an alkyl group can be in the range of 1-20.
- Examples of the hydrocarbon group having 1 to 20 carbon atoms include an alkyl group, a cycloalkyl group, an aryl group, and an aralkyl group.
- examples of the alkyl group include a methyl group, an ethyl group, and a propyl group.
- Group, isopropyl group, butyl group and the like are exemplified
- the cycloalkyl group is exemplified by cyclopentyl group, cyclohexyl group and the like
- the aryl group is exemplified by phenyl group, tolyl group and the like
- the aralkyl group is exemplified by Examples include a benzyl group.
- alkoxy group examples include a methoxy group, an ethoxy group, and a butoxy group
- examples of the aryloxy group include a phenoxy group. These groups may be substituted with a halogen atom or the like.
- alkylsilyl group examples include a trimethylsilyl group and a triethylsilyl group.
- halogen examples include fluorine, chlorine, bromine and iodine.
- transition metal compound containing a ligand having a cycloalkadienyl skeleton when M in the general formula (IV) is zirconium are exemplified.
- M in the general formula (IV) is zirconium, includes at least two ligands having a cycloalkadienyl skeleton, and the ligand having at least two cycloalkadienyl skeletons.
- the transition metal compound bonded via an alkylene group such as ethylene and propylene, a substituted alkylene group such as isopropylidene and diphenylmethylene, a substituted silylene group such as silylene group and dimethylsilylene, and the like are exemplified.
- transition metal compounds may be used alone in homogeneous polymerization, or two or more kinds may be used for the purpose of adjusting the molecular weight distribution. In the case of preparing a solid catalyst in advance, only one kind of these transition metal compounds may be used, or two or more kinds may be used for the purpose of adjusting the molecular weight distribution.
- This invention includes the manufacturing method of polyolefin including polymerizing olefin using the catalyst of the said invention.
- the homogeneous polymerization using the solid polymethylaluminoxane composition of the present invention and the polymerization using the supported catalyst prepared using the solid polymethylaluminoxane composition of the present invention are solution polymerization using a solvent as a polymerization mode.
- suitable performance is exhibited.
- preferable performance is exhibited, and hydrogen as a molecular weight regulator can be used as necessary.
- the monomer used for polymerization may be any compound that can be used for copolymerization of olefinic monomers alone or in combination.
- Specific examples include ⁇ -olefins such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-decene, 1-hexadecene, 1-octadecene and 1-eicocene, bisfluoroethylene, trifluoroethylene , Halogen-substituted olefins such as tetrafluoroethylene and hexafluoropropene, and cyclic olefins such as cyclopentene, cyclohexene and norbornene.
- the solid methylaluminoxane composition is usually dried at 40 ° C. under a vacuum pump full vacuum through a seal pot containing liquid paraffin, and no bubbles are observed in the seal pot. The time was taken as the end point of drying.
- the aluminum content of the solution-like polymethylaluminoxane composition and the solid aluminoxane composition is basically determined by adding an excess amount of disodium ethylenediaminetetraacetate to a solution hydrolyzed with a 0.5 N aqueous sulfuric acid solution. It was determined by back titrating with zinc sulfate using dithizone as an indicator. When the measurement concentration was dilute, the measurement was performed using atomic absorption spectrometry.
- volume-based median diameter and particle size distribution of the solid aluminoxane composition were measured using a master sizer 2000 Hydro S of Malvern Instrument Ltd. under a dry nitrogen atmosphere. It was determined by the laser diffraction / scattering method.
- the dispersion medium was mainly dehydrated and degassed n-hexane, and partially dehydrated and degassed toluene depending on the purpose.
- the uniformity represented by the following formula was used as an index of the catalyst particle size distribution.
- Xi is the volume percentage of particles i of the solid aluminoxane composition in the histogram of particle size distribution
- d (0.5) is the volume-based median diameter in the histogram
- Di is the volume-based diameter of particle i in the histogram.
- 1 H-NMR measurement of a polymethylaluminoxane composition is performed using d 8 -THF as a heavy solvent.
- 1 H-NMR measurement was performed at a measurement temperature of 24 ° C. using a Gemini 2000 NMR measurement apparatus manufactured by 300 MHz Varian Technologies Japan Limited.
- An example of a 1 H-NMR chart is shown in FIG.
- each peak can be cut out easily by a method using a commercially available curve fitting program or a method using a baseline collection.
- An analytical sample of the solution-like polymethylaluminoxane composition was prepared by adding about 0.5 ml of d 8 -THF to about 0.05 ml of the solution-like polymethylaluminoxane composition.
- An analytical sample of the solid polymethylaluminoxane composition was prepared by adding 0.5 ml of d 8 -THF to 10 mg of the solution polymethylaluminoxane composition.
- the reaction solution was heated at 70 ° C. for 32 hours, and then heated at 60 ° C. for 6 hours to obtain a toluene solution of a polymethylaluminoxane composition.
- the obtained solution was a transparent liquid without gel. From the results of aluminum analysis performed after the reaction solution was recovered, the reaction yield shown on the aluminum atom basis was quantitative. The aluminum concentration of the obtained reaction liquid was 9.04 wt%.
- the Me (TMAL) content of the obtained solution-like polymethylaluminoxane composition was determined by 1 H-NMR and found to be 14.0 mol%.
- the solid polymethylaluminoxane composition was decanted and the supernatant was removed, followed by washing with decantation twice with 3 L of n-hexane.
- the obtained solid was dried under reduced pressure at room temperature to obtain a dry solid polymethylaluminoxane composition.
- the precipitation rate of the dry solid polymethylaluminoxane composition was 97% based on the aluminum atom of the solution-like polymethylaluminoxane composition used.
- the amount of Me (TMAL) of the obtained solid polymethylaluminoxane composition was determined by 1 H-NMR, it was 9.2 mol%.
- Pentadienyl) zirconium dichloride (Cp 2 ZrCl 2 ) was added, and ethylene gas was blown in while raising the temperature to 40 ° C. Ten minutes later, the supply of ethylene gas was stopped, and methanol was added to deactivate the catalyst. The produced polyethylene was filtered and dried, and the polymerization activity was determined to be 68 ⁇ 10 6 g-PE / mol-Zr ⁇ atm ⁇ hr. The obtained polymer was in the form of free flowing fine particles and did not adhere to the reactor after polymerization. The molecular weight determined by high temperature GPC was 170,000, and Mw / Mn was 2.6.
- Example 2 (1) Synthesis of Solid Polymethylaluminoxane Composition A solid polymethylaluminoxane composition was prepared in the same manner as in Example 1 except that nitrogen bubbling (250 ml / min) was performed for 60 minutes. The precipitation rate of the dried solid polymethylaluminoxane composition was 96.5% based on the aluminum atom of the solution-like polymethylaluminoxane composition used. When the amount of Me (TMAL) of the obtained solid polymethylaluminoxane composition was determined by 1 H-NMR, it was 9.1 mol%.
- TMAL Me
- the obtained polymer was free-flowing fine particles and did not adhere to the reactor after polymerization.
- the molecular weight determined by high temperature GPC was 170,000, and Mw / Mn was 2.5.
- Example 3 (1) Synthesis of solid polymethylaluminoxane composition A solid polymethylaluminoxane composition was prepared in the same manner as in Example 1 except that nitrogen bubbling (5 ml / min) was performed during solidification by heating. The precipitation rate of the dried solid polymethylaluminoxane composition was 97.5% based on the aluminum atom of the solution-like polymethylaluminoxane composition used. When the amount of Me (TMAL) of the obtained solid polymethylaluminoxane composition was determined by 1 H-NMR, it was 8.8 mol%.
- TMAL Me
- Example 4 (1) Synthesis of solid polymethylaluminoxane composition A solid polymethylaluminoxane composition was prepared in the same manner as in Example 1 except that nitrogen bubbling (7.5 ml / min) was performed during solidification by heating. The precipitation rate of the dry solid polymethylaluminoxane composition was 98.5% based on the aluminum atom of the solution-like polymethylaluminoxane composition used. The amount of Me (TMAL) of the obtained solid polymethylaluminoxane composition was determined by 1 H-NMR and found to be 8.2 mol%.
- TMAL Me
- the obtained polymer was free-flowing fine particles and did not adhere to the reactor after polymerization.
- the molecular weight determined by high temperature GPC was 200,000, and Mw / Mn was 2.4.
- a nitrogen gas in the system was purged by introducing 800 ml of hexane into a SUS autoclave (1500 ml) equipped with a pressure-resistant glass stirrer and pressure gauge and performing ethylene 0.5 MPa pressure depressurization four times. Thereafter, 0.5 ml of a 0.5 mol / L triethylaluminum hexane solution was added. The inner solution was heated to 65 ° C. with an oil bath. Toluene slurry of the above prepared catalyst (15 mg as catalyst solid) was charged under pressure, and immediately the pressure inside the system was increased to 0.7 MPa with ethylene to start polymerization.
- the pressure in the system was kept at 0.7 MPa, the polymerization temperature was kept at 70 ° C., and slurry polymerization was carried out for 1 hour. After 1 hour of polymerization, the polymerization was stopped by stopping the supply of ethylene and releasing the gas in the system. Further, a small amount of methanol containing di-t-butylhydroxytoluene was added, and the polymer was collected by Nutsche. When the obtained polymer was dried under reduced pressure at 50 ° C., the polymer weight was 350 g and the polymerization activity was very high activity of about 23300 g-PE / g-cat ⁇ hr. The obtained polymer was in the form of free flowing fine particles and did not adhere to the reactor after polymerization.
- Example 5 (3) Evaluation of ethylene polymerization Polymerization using bisindenylzirconium dichloride A catalyst was prepared and obtained in the same manner as in the method described in (3) 2. of Example 4 except that the solid polymethylaluminoxane composition obtained in Example 1 was used. Polymerization evaluation of the catalyst was conducted to obtain 250 g of polymer. The polymerization activity was very high, about 16700 g-PE / g-cat ⁇ hr. The obtained polymer was in the form of free flowing fine particles and did not adhere to the reactor after polymerization.
- Example 6 (3) Evaluation of ethylene polymerization Polymerization using bisindenylzirconium dichloride A catalyst was prepared and obtained in the same manner as described in (3) 2. of Example 4 except that the solid polymethylaluminoxane composition obtained in Example 2 was used. When the polymerization of the catalyst was evaluated, 285 g of a polymer was obtained. The polymerization activity was very high activity of 19000g-PE / g-cat ⁇ hr. The obtained polymer was in the form of free flowing fine particles and did not adhere to the reactor after polymerization.
- Example 7 (3) Evaluation of ethylene polymerization Polymerization using bisindenylzirconium dichloride A catalyst was prepared and obtained in the same manner as described in (3) 2. of Example 4 except that the solid polymethylaluminoxane composition obtained in Example 3 was used. Polymerization evaluation of the catalyst was conducted to obtain 312 g of polymer. The polymerization activity was as high as 20800 g-PE / g-cat ⁇ hr. The obtained polymer was in the form of free flowing fine particles and did not adhere to the reactor after polymerization.
- Comparative Example 1 This comparative example is a reproduction of Example 7 of Patent Document 7.
- the molar ratio of oxygen atoms of TMAL and acetophenone was 1.39.
- To the reaction solution use the toluene solution of the polymethylaluminoxane composition prepared in Preliminary Experiment 1 as the activator of the thermal decomposition reaction, and add 49.0 mmol in an amount based on the aluminum atom at once, and then heat at 65 ° C for 9 hours.
- a toluene solution of a polymethylaluminoxane composition using acetophenone as an oxygen source was obtained.
- the resulting solution was a light yellow transparent liquid with no gel. From the results of aluminum concentration analysis performed after the reaction solution was recovered, the reaction yield shown on the basis of aluminum atoms was quantitative.
- the aluminum concentration of the obtained reaction liquid was 9.15 wt%.
- the amount of Me (TMAL) of the obtained solution-like polymethylaluminoxane composition determined by 1 H-NMR was 23.2 mol%. Since the solution-like polymethylaluminoxane composition is in a solution state, the solubility measurement described in the test method section cannot be performed, but the concentration in toluene obtained by calculation from the specific gravity of the solution and the aluminum concentration is about 3.1 mol / L.
- Comparative Example 2 This comparative example is a reproduction of Example 1 of Patent Document 7.
- the obtained solid was dried under reduced pressure at room temperature to obtain a dry solid polymethylaluminoxane composition.
- the precipitation rate of the dry solid polymethylaluminoxane composition was 96% based on the aluminum atom of the solution-like polymethylaluminoxane composition used.
- the amount of Me (TMAL) of the obtained solid polymethylaluminoxane composition was determined by 1 H-NMR, it was 9.0 mol%.
- Pentadienyl) zirconium dichloride (Cp 2 ZrCl 2 ) was added, and ethylene gas was blown in while raising the temperature to 40 ° C. Ten minutes later, the supply of ethylene gas was stopped, and methanol was added to deactivate the catalyst. The produced polyethylene was filtered and dried, and the polymerization activity was determined to be 64 ⁇ 10 6 g-PE / mol-Zr ⁇ atm ⁇ hr. The obtained polymer was in the form of free flowing fine particles and did not adhere to the reactor after polymerization. The molecular weight determined by high temperature GPC was 160,000, and Mw / Mn was 2.7.
- the present invention is useful in the technical field of olefin polymer production.
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Abstract
Description
[特許文献2] 日本特開平8-319309号公報
[特許文献3] 日本特開平7-300486号公報
[特許文献4] 日本特開平7-70144号公報
[特許文献5] 日本特公平7-42301号公報
[特許文献6] WO97/23288(日本特表2000-505785号公報)
[特許文献7] WO2010/055652(PCT/JP2009/006019)
[1]
(i)アルミニウム含有量が36質量%から43質量%の範囲にあり、かつ
(ii)メチル基の総モル数に対するトリメチルアルミニウム部位に由来するメチル基のモル分率が12モル%以下であり、かつ
(iii)粒子状であり、体積基準のメジアン径が0.1μm~5μm未満の範囲である
固体状ポリメチルアルミノキサン組成物。
[2]
25℃におけるn-ヘキサンに対する溶解度が0~2モル%であり、かつ
25℃におけるトルエンに対する溶解度が0~2モル%である
[1]に記載の組成物。
[3]
下記式で示される均一性が0.45以下である[1]~[2]のいずれかに記載の組成物。
均一性 = ΣXi|d(0.5) - Di|/d(0.5)ΣXi
(ここで、Xiは粒度分布のヒストグラムにおける固体状アルミノキサン組成物の粒子iの体積百分率、d(0.5)は前記ヒストグラムにおける体積基準のメジアン径、Diは前記ヒストグラムにおける粒子iの体積基準径を示す。)
[4]
比表面積が、10~25m2/mmol-Alの範囲である
[1]~[3]のいずれかに記載の組成物。
[5]
以下の一般式(I)で示される単位を含むポリメチルアルミノキサンとトリメチルアルミニウムを含有する、
[1]~[4]のいずれかに記載の組成物。
-[(Me)AlO]n- (I)
(式中、nは10~50の整数を示す。)
[6]
SiO2を含有しない、[1]~[5]のいずれかに記載の組成物。
[7]
(a)下記一般式(II)で示される単位を含むポリメチルアルミノキサンとトリメチルアルミニウムを含有する芳香族系炭化水素溶液(以下、溶液状ポリメチルアルミノキサン組成物と称す)を加熱して、ポリメチルアルミノキサンとトリメチルアルミニウムを含有する固体状ポリメチルアルミノキサン組成物を析出させる工程を含み、工程(a)に先だって前記溶液状ポリメチルアルミノキサン組成物に乾燥不活性ガスをバブリングする、および/または工程(a)の少なくとも一部の期間中に前記溶液状ポリメチルアルミノキサン組成物に乾燥不活性ガスをバブリングする、[1]~[6]のいずれかに記載の固体状ポリメチルアルミノキサン組成物の製造方法。
-[(Me)AlO]n- (II)
(式中、nは1~50の整数を示す。)
[8]
前記加熱前の溶液状ポリメチルアルミノキサン組成物は、メチル基の総モル数に対するトリメチルアルミニウム部位に由来するメチル基のモル分率が15モル%以下である、[8]に記載の製造方法。
[9]
工程(a)において、
(i)80℃~200℃の範囲の加熱温度、及び
(ii)5分間以上24時間未満の加熱時間から、
適した加熱温度及び加熱時間を選択して固体状ポリメチルアルミノキサン組成物を析出させる、[8]または[9]に記載の製造方法。
[10]
工程(a)で原料として用いる溶液状ポリメチルアルミノキサン組成物が、アルミニウム-酸素-炭素結合を有するアルキルアルミニウム化合物を熱分解することにより得られるものである、
[7]~[9]のいずれかに記載の製造方法。
[11]
前記アルミニウム-酸素-炭素結合を有するアルキルアルミニウム化合物は、トリメチルアルミニウムと含酸素有機化合物との反応により調製されるものである、
[10]に記載の製造方法。
[12]
前記含酸素有機化合物が、一般式(III)で示される脂肪族または芳香族カルボン酸である、[11]に記載の製造方法。
R1-(COOH)n (III)
(式中、R1は、C1~C20の直鎖あるいは分岐したアルキル基、アルケニル基、アリール基の炭化水素基を表し、nは1~5の整数を表す。)
[13]
前記トリメチルアルミニウムと含酸素有機化合物との反応は、トリメチルアルミニウムに含まれるアルミニウム原子と含酸素化合物中の酸素原子のモル比が、1.15~1.4:1の範囲となるように行う、[11]または[12]に記載の製造方法。
[14]
[1]~[6]のいずれかに記載の固体状ポリメチルアルミノキサン組成物と下記一般式(IV)で表される遷移金属化合物を触媒成分として含有するオレフィン類の重合触媒。
MR5R6R7R8 (IV)
(式中、Mは遷移金属元素を示し、かつR5, R6, R7, R8は、共同で1個または2個のシクロアルカジエニル骨格を有する有機基を示すか、または独立して、炭素数1~20の炭化水素基、アルコシキ基、アリーロキシ基、アルキルシリル基、アルキルアミド基、アルキルイミド基、アルキルアミノ基、アルキルイミノ基、水素原子及びハロゲン原子から成る群から選ばれる1種の有機基若しくは原子を示す。)
[15]
[14]に記載の触媒を用いてオレフィン類を重合することを含む、ポリオレフィン類の製造方法。
本発明の固体状ポリメチルアルミノキサン組成物は、
(i)アルミニウム含有量が36質量%から43質量%の範囲にあり、かつ
(ii)メチル基の総モル数に対するトリメチルアルミニウム部位に由来するメチル基のモル分率が12モル%以下であり、
(iii)粒子状であり、体積基準のメジアン径が0.1μm~5μm未満の範囲である。
-[(Me)AlO]n- (I)
(式中、nは10~50の整数を示す。)
本発明の固体状メチルアルミノキサン組成物においてトリメチルアルミニウム部位に由来するメチル基のモル分率は、好ましくは11モル%以下である。トリメチルアルミニウム部位に由来するメチル基のモル分率の下限は、固体状ポリメチルアルミノキサンの形状制御可能な原料となる溶液状ポリメチルアルミノキサンに依存するという理由から、例えば、6モル%でよく、好ましくは8モル%である。
均一性 = ΣXi|d(0.5) - Di|/d(0.5)ΣXi
(ここで、Xiは粒度分布のヒストグラムにおける固体状アルミノキサン組成物の粒子iの体積百分率、d(0.5)は前記ヒストグラムにおける体積基準のメジアン径、Diは前記ヒストグラムにおける粒子iの体積基準径を示す。)
本発明の固体状ポリメチルアルミノキサン組成物の製造方法は、(a)下記一般式(II)で示される単位を含むポリメチルアルミノキサンとトリメチルアルミニウムを含有する芳香族系炭化水素溶液(溶液状ポリメチルアルミノキサン組成物)を加熱して、ポリメチルアルミノキサンとトリメチルアルミニウムを含有する固体状ポリメチルアルミノキサン組成物を析出させる工程を含み、工程(a)に先だって前記溶液状ポリメチルアルミノキサン組成物に乾燥不活性ガスをバブリングする、および/または工程(a)の少なくとも一部の期間中に前記溶液状ポリメチルアルミノキサン組成物に乾燥不活性ガスをバブリングする、上記本発明の固体状ポリメチルアルミノキサン組成物の製造方法である。
-[(Me)AlO]n- (II)
(式中、nは10~50の整数を示す。)
R1-(COOH)n (III)
(式中、R1は、C1~C20の直鎖あるいは分岐したアルキル基、アルケニル基、アリール基の炭化水素基を表し、nは1~5の整数を表す。)
溶液状ポリメチルアルミノキサン組成物の調製のし易さ、その安定性および適切な残留トリメチルアルミニウム量の制御と言う観点から、上記モル量の比は、好ましくは1.0~ 1.7 : 1の範囲であり、さらに好ましくは1.15~1.4 : 1の範囲である。
(i)80℃~200℃の範囲の加熱温度、及び
(ii)5分間以上24時間未満の加熱時間から、
適した加熱温度及び加熱時間を選択して固体状ポリメチルアルミノキサン組成物を析出させる。
本発明は、オレフィン類の重合触媒を包含する。本発明のオレフィン類の重合触媒は、上記本発明の固体状ポリメチルアルミノキサン組成物と下記一般式(IV)で表される遷移金属化合物を触媒成分として含有する。
MR5R6R7R8 (IV)
(式中、Mは遷移金属元素を示し、かつR5, R6, R7, R8は、共同で1個または2個のシクロアルカジエニル骨格を有する有機基を示すか、または独立して、炭素数1~20の炭化水素基、アルコシキ基、アリーロキシ基、アルキルシリル基、アルキルアミド基、アルキルイミド基、アルキルアミノ基、アルキルイミノ基、水素原子及びハロゲン原子から成る群から選ばれる1種の有機基若しくは原子を示す。)
本発明は上記本発明の触媒を用いてオレフィン類を重合することを含む、ポリオレフィン類の製造方法を包含する。
(1) 溶解度
本発明の固体状メチルアルミノキサン組成物の25℃の温度に保持されたn-ヘキサンおよびトルエンに対する溶解する割合の測定は、特公平7-42301号公報に記載の方法に準じて実施した。具体的には、n-ヘキサンに対する溶解割合は25℃に保持された50mlのn-ヘキサンに固体状ポリメチルアルミノキサン組成物2gを加え、その後2時間の攪拌を行ない、次いでメンブレンフイルターを用いて溶液部を分離して、この濾液中のアルミニウム濃度を測定することにより求める。この方法で得られる溶解割合は、試料として用いた固体状ポリメチルアルミノキサン組成物2gに相当するアルミニウム原子の量に対する上記濾液中に存在するアルミニウム原子の割合として決定される。
溶液状ポリメチルアルミノキサン組成物および固体状アルミノキサン組成物のアルミニウム含量は、基本的に0.5Nの硫酸水溶液で加水分解した溶液に過剰量のエチレンジアミン四酢酸二ナトリウムを加えた後に、ジチゾンを指示薬とし硫酸亜鉛で逆滴定することにより求めた。測定濃度が希薄な場合は、原子吸光分析法を用いて測定を行った。
固体状アルミノキサン組成物の比表面積は、BET吸着等温式を用い、固体表面におけるガスの吸着現象を利用して求めた。測定装置にはBEL JAPAN,INC.製のBELSORP mini IIを、測定ガスには窒素ガスを用いた。
固体状アルミノキサン組成物の体積基準のメジアン径および粒度分布はMalvern Instrument Ltd.のマスターサイザー2000 Hydro Sを利用し、乾燥窒素雰囲気下にレーザー回折・散乱法により求めた。分散媒には主に脱水・脱気したn-ヘキサンを、目的により一部には脱水・脱気したトルエンを用いた。触媒粒度分布の指標として、均一性は、下記の式で示される定義を用いた。
均一性 = ΣXi|d(0.5) - Di|/d(0.5)ΣXi
ここで、Xiは粒度分布のヒストグラムにおける固体状アルミノキサン組成物の粒子iの体積百分率、d(0.5)は前記ヒストグラムにおける体積基準のメジアン径、Diは前記ヒストグラムにおける粒子iの体積基準径を示す。
ポリメチルアルミノキサン組成物中のそれぞれの成分のモル分率は、ポリメチルアルミノキサン組成物の1H-NMR測定により、それぞれの成分に帰属される面積比から求めた。以下にポリメチルアルミノキサン組成物の具体的なMe(PMAO), Me(TMAL)のモル分率の求め方を例示する。ポリメチルアルミノキサンに由来するメチル基のモル分率をMe(PMAO)と表す。トリメチルアルミニウムに由来するメチル基のモル分率をMe(TMAL)と表す。
(ii) -1.1ppm付近のTMALに由来するMe基ピークを接線-1により切り出し、その積分値 I(TMAL-Me)を求める。
(iii) (ii)で求めたそれぞれの積分値を、(i)で求めた積分値 I(ポリメチルアルミノキサン)から引くと、トリメチルアルミニウムを含まないポリメチルアルミノキサンのみのMe-基の積分値I(PMAO-Me)を求めることができる。I(TMAL-Me)およびI(PMAO-Me)をI(ポリメチルアルミノキサン)で割って規格化すると、Me(PMAO), Me(TMAL)のモル分率を求めることが出来る。
(1) 溶液状ポリメチルアルミノキサン組成物の合成
撹拌装置を有する内容積2Lのセパラブルフラスコに、トリメチルアルミニウム(TMAL) 240.8g(3.34mol)、トルエン600.5gを入れた。この溶液を15℃にまで冷却し、これに安息香酸145.7g(1.19mol)を溶液の温度が25℃以下になるような速度でゆっくりと添加した。その後50℃で加熱熟成を1時間行った。この時、TMALと安息香酸の酸素原子のモル比は、1.20であった。反応液を70℃で32時間加熱し、その後60℃で6時間加熱することにより、ポリメチルアルミノキサン組成物のトルエン溶液を得た。得られた溶液は、ゲル状物のない透明な液体であった。反応液回収後に行ったアルミニウム分析結果より、アルミニウム原子基準で示す反応収率は定量的なものであった。得られた反応液のアルミニウム濃度は、9.04wt%であった。得られた溶液状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、14.0mol%であった。なお、本溶液状ポリメチルアルミノキサンは溶液状態のため、試験方法の項で記載した溶解度測定は出来なが、溶液の比重とアルミニウム濃度から計算で求めたトルエン中の濃度は約3.0mol/Lであった。
ビス(シクロペンタジエニル)ジルコニウムジクロライドを用いた重合
磁気撹拌装置を持つ500mlの四つ口フラスコにトルエン250mlを導入し、34℃にまで加熱した。これにアルミニウム原子換算で0.16g(5.93mmol)のポリメチルアルミノキサンのトルエン溶液を加え、さらにAl/Zrのモル比が5000となるようにビス(シクロペンタジエニル)ジルコニウムジクロライド(Cp2ZrCl2)を加え、40℃に昇温しながらエチレンガスを吹き込んだ。10分後に、エチレンガスの供給を止め、メタノールを投入して触媒を失活させた。生成したポリエチレンを濾過乾燥し、重合活性を求めたところ39×106g-PE/mol-Zr・atm・hrであった。高温GPCにより求めた分子量は18万で、Mw/Mnは2.9であった。ポリマー形状は不定形で、重合器のファウリングが顕著であった。
(1) 固体状ポリメチルアルミノキサン組成物の合成
撹拌装置を有する内容積5Lのセパラブルフラスコに予備実験1(Al/O=1.20)で調製したポリメチルアルミノキサン組成物のトルエン溶液 406.5g(1.361mol-Al)を入れ、挿入したディップチューブより乾燥窒素を吹込み、攪拌しながら窒素バブリング(250ml/min)を30min行った。その後、攪拌しながら100℃で8時間加熱した。加熱中に固体状ポリメチルアルミノキサン組成物が析出した。溶液を30℃以下にまで冷却した後に、洗浄のためにn-ヘキサン3.6Lを攪拌下に添加した。固体状ポリメチルアルミノキサン組成物をデカンテーションし、上澄み液を除去した後に、n-ヘキサン 3Lで2度のデカンテーションによる洗浄操作を行った。得られた固体を室温下に減圧乾燥することにより乾燥固体状ポリメチルアルミノキサン組成物を得た。乾燥固体状ポリメチルアルミノキサン組成物の析出率は使用した溶液状ポリメチルアルミノキサン組成物のアルミニウム原子基準で97%であった。得られた固体状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、9.2mol%であった。
(a) アルミニウム含量
乾燥固体状ポリメチルアルミノキサン組成物中のアルミニウム含量を測定したところ、39.3wt%-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のマスターサイザー2000 Hydro Sによる粒度分布評価を行ったところ、体積基準のメジアン径d(0.5) 3.1μm、均一性は0.290であった。
乾燥固体状ポリメチルアルミノキサン組成物の比表面積測定を行ったところ、アルミニウム原子 1mmol当りの比表面積は20.1m2/mmol-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のn-ヘキサンとトルエンへの溶解割合を求めたところ、それぞれ0.1mol%、0.35mol%と極めて低い値であった。
1. ビス(シクロペンタジエニル)ジルコニウムジクロライドを用いた重合
磁気撹拌装置を持つ500mlの四つ口フラスコにトルエン250mlを導入し、34℃にまで加熱した。これにアルミニウム原子換算で0.16g(5.93mmol)の固体状ポリメチルアルミノキサン組成物(Al/O=1.20)のトルエンスラリー溶液を加え、さらにAl/Zrのモル比が5000となるようにビス(シクロペンタジエニル)ジルコニウムジクロライド(Cp2ZrCl2)を加え、40℃に昇温しながらエチレンガスを吹き込んだ。10分後に、エチレンガスの供給を止め、メタノールを投入して触媒を失活させた。生成したポリエチレンを濾過乾燥し、重合活性を求めたところ68×106g-PE/mol-Zr・atm・hrであった。
得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。また、高温GPCにより求めた分子量は17万で、Mw/Mnは2.6であった。
(1) 固体状ポリメチルアルミノキサン組成物の合成
窒素バブリング(250ml/min)を60min行ったこと以外は、実施例1と同様に固体状ポリメチルアルミノキサン組成物を調製した。乾燥固体状ポリメチルアルミノキサン組成物の析出率は使用した溶液状ポリメチルアルミノキサン組成物のアルミニウム原子基準で96.5%であった。得られた固体状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、9.1mol%であった。
(a) アルミニウム含量
乾燥固体状ポリメチルアルミノキサン組成物中のアルミニウム含量を測定したところ、40.3wt%-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のマスターサイザー2000 Hydro Sによる粒度分布評価を行ったところ、体積基準のメジアン径d(0.5) 1.5μm、均一性は0.300であった。
乾燥固体状ポリメチルアルミノキサン組成物の比表面積測定を行ったところ、アルミニウム原子 1mmol当りの比表面積は21.1m2/mmol-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のn-ヘキサンとトルエンへの溶解割合を求めたところ、それぞれ0.1mol%、0.35mol%と極めて低い値であった。
1. ビス(シクロペンタジエニル)ジルコニウムジクロライドを用いた重合
上記で合成した固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例1の(3)1.と同様に重合評価を実施したところ、65×106g-PE/mol-Zr・atm・hrであった。
(1) 固体状ポリメチルアルミノキサン組成物の合成
窒素バブリング(5ml/min)を加熱による固体化時に行ったこと以外は、実施例1と同様に固体状ポリメチルアルミノキサン組成物を調製した。乾燥固体状ポリメチルアルミノキサン組成物の析出率は使用した溶液状ポリメチルアルミノキサン組成物のアルミニウム原子基準で97.5%であった。得られた固体状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、8.8mol%であった。
(a) アルミニウム含量
乾燥固体状ポリメチルアルミノキサン組成物中のアルミニウム含量を測定したところ、40.3wt%-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のマスターサイザー2000 Hydro Sによる粒度分布評価を行ったところ、体積基準のメジアン径d(0.5) 0.9μm、均一性は0.310であった。
乾燥固体状ポリメチルアルミノキサン組成物の比表面積測定を行ったところ、アルミニウム原子 1mmol当りの比表面積は22.1m2/mmol-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のn-ヘキサンとトルエンへの溶解割合を求めたところ、それぞれ0.1mol%、0.35mol%と極めて低い値であった。
1. ビス(シクロペンタジエニル)ジルコニウムジクロライドを用いた重合
上記で合成した固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例1の(3)1.と同様に重合評価を実施したところ、66×106g-PE/mol-Zr・atm・hrであった。
得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。また、高温GPCにより求めた分子量は17万で、Mw/Mnは2.5であった。
(1) 固体状ポリメチルアルミノキサン組成物の合成
窒素バブリング(7.5ml/min)を加熱による固体化時に行ったこと以外は、実施例1と同様に固体状ポリメチルアルミノキサン組成物を調製した。乾燥固体状ポリメチルアルミノキサン組成物の析出率は使用した溶液状ポリメチルアルミノキサン組成物のアルミニウム原子基準で98.5%であった。得られた固体状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、8.2mol%であった。
(a) アルミニウム含量
乾燥固体状ポリメチルアルミノキサン組成物中のアルミニウム含量を測定したところ、42.1wt%-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のマスターサイザー2000 Hydro Sによる粒度分布評価を行ったところ、体積基準のメジアン径d(0.5) 0.7μm、均一性は0.300であった。
乾燥固体状ポリメチルアルミノキサン組成物の比表面積測定を行ったところ、アルミニウム原子 1mmol当りの比表面積は21.5m2/mmol-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のn-ヘキサンとトルエンへの溶解割合を求めたところ、それぞれ0.1mol%、0.35mol%と極めて低い値であった。
1. ビス(シクロペンタジエニル)ジルコニウムジクロライドを用いた重合
上記で合成した固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例1の(3)1.と同様に重合評価を実施したところ、72×106g-PE/mol-Zr・atm・hrであった。
攪拌機付ガラスフラスコに、上記で合成した固体状ポリメチルアルミノキサン組成物10g(155.9mmol-Al)を入れ、トルエンにてスラリー濃度15wt%に調整した。これにビスインデニルジルコニウムジクロライド(和光ケミカル社製、0.78mmol-Zr)のトルエン溶液を室温下に徐々に添加し、そのまま3時間、攪拌下に反応を行った。上澄みに若干の着色が見られなかったので、洗浄は実施しなかった。この調製触媒のトルエンスラリーを用いてエチレンの単独重合を行った。
(3) エチレン重合評価
2.ビスインデニルジルコニウムジクロライドを用いた重合
実施例1で得られた固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例4の(3)2.記載の方法と同様に触媒調製し、得られた触媒の重合評価を行ったところ、250gのポリマーを得た。重合活性は約16700g-PE/g-cat・hrの非常な高活性であった。得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。
(3) エチレン重合評価
2.ビスインデニルジルコニウムジクロライドを用いた重合
実施例2で得られた固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例4の(3)2.記載の方法と同様に触媒調製し、得られた触媒の重合評価を行ったところ、285gのポリマーを得た。重合活性は19000g-PE/g-cat・hrの非常な高活性であった。得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。
(3) エチレン重合評価
2.ビスインデニルジルコニウムジクロライドを用いた重合
実施例3で得られた固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例4の(3)2.記載の方法と同様に触媒調製し、得られた触媒の重合評価を行ったところ、312gのポリマーを得た。重合活性は20800g-PE/g-cat・hrの非常な高活性であった。得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。
本比較例は、特許文献7の実施例7の再現である。
撹拌装置を有する内容積500mLのセパラブルフラスコに、トリメチルアルミニウム(TMAL) 68.39g(948.81mmol)、トルエン102.51gを入れた。この溶液を15℃にまで冷却し、これにアセトフェノン82.13g(683.56mmol)とトルエン19.35gの溶液を、フラスコ中の内部温度が25℃以下になるような速度でゆっくりと添加した。その後50℃で加熱熟成を1時間行った。この時、TMALとアセトフェノンの酸素原子のモル比は、1.39であった。反応液に予備実験1で調製したポリメチルアルミノキサン組成物のトルエン溶液を熱分解反応の活性化剤とし、アルミニウム原子基準で49.0mmolとなる量を一気に投入し、その後65℃で9時間加熱することにより、アセトフェノンを酸素源に用いたポリメチルアルミノキサン組成物のトルエン溶液を得た。得られた溶液は、ゲル状物のない薄黄色の透明な液体であった。反応液回収後に行ったアルミニウム濃度分析結果より、アルミニウム原子基準で示す反応収率は定量的なものであった。得られた反応液のアルミニウム濃度は9.15wt%であった。得られた溶液状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、23.2mol%であった。なお、本溶液状ポリメチルアルミノキサン組成物は溶液状態のため、試験方法の項で記載した溶解度測定は出来なが、溶液の比重とアルミニウム濃度から計算で求めたトルエン中の濃度は約3.1mol/Lであった。
重合評価は予備実験1の(2)1.に記載の方法と同様に実施したところ、重合活性は65×106g-PE/mol-Zr・atm・hrであった。ポリマー形状は不定形で、重合器のファウリングが顕著であった。
上記アセトフェノンを用いて調製した溶液状ポリメチルアルミノキサン組成物を用いたことおよび窒素バブリングを行わなかったこと以外は実施例1と同様に固体状ポリメチルアルミノキサン組成物を調製した。乾燥固体の析出率は使用した溶液状ポリメチルアルミノキサン組成物のアルミニウム原子基準で54.8%であった。得られた固体状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、11.8mol%であった。
(a) アルミニウム含量
乾燥固体状ポリメチルアルミノキサン組成物中のアルミニウム含量を測定したところ、40.1wt%-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のマスターサイザー2000 Hydro Sによる粒度分布評価を行ったところ、体積基準のメジアン径d(0.5) 6.2μm、均一性は0.300であった。
乾燥固体状ポリメチルアルミノキサン組成物の比表面積測定を行ったところ、アルミニウム原子 1mmol当りの比表面積は13.2m2/mmol-Alであった。
上記で合成した固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例1の(3)1.と同様に重合評価を実施したところ、重合活性は37×106g-PE/mol-Zr・atm・hrであった。得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。
上記で得られた固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例4の(3)2.記載の方法と同様に触媒調製し、得られた触媒の重合評価を行ったところ、23gのポリマーを得た。重合活性は約1500g-PE/g-cat・hrの活性であった。得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。
本比較例は、特許文献7の実施例1の再現である。
撹拌装置を有する内容積5Lのセパラブルフラスコに予備実験1(Al/O=1.20)で調製したポリメチルアルミノキサン組成物のトルエン溶液 406.5g(1.361mol-Al)を入れ、攪拌しながら100℃で8時間加熱した。加熱中に固体状ポリメチルアルミノキサン組成物が析出した。溶液を30℃以下にまで冷却した後に、洗浄のためにn-ヘキサン3.6Lを攪拌下に添加した。固体状ポリメチルアルミノキサン組成物をデカンテーションし、上澄み液を除去した後に、n-ヘキサン 3Lで2度のデカンテーションによる洗浄操作を行った。得られた固体を室温下に減圧乾燥することにより乾燥固体状ポリメチルアルミノキサン組成物を得た。乾燥固体状ポリメチルアルミノキサン組成物の析出率は使用した溶液状ポリメチルアルミノキサン組成物のアルミニウム原子基準で96%であった。得られた固体状ポリメチルアルミノキサン組成物のMe(TMAL)量を1H-NMRより求めたところ、9.0mol%であった。
(a) アルミニウム含量
乾燥固体状ポリメチルアルミノキサン組成物中のアルミニウム含量を測定したところ、37.3wt%-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のマスターサイザー2000 Hydro Sによる粒度分布評価を行ったところ、体積基準のメジアン径d(0.5) 9.4μm、均一性は0.296であった。
乾燥固体状ポリメチルアルミノキサン組成物の比表面積測定を行ったところ、アルミニウム原子 1mmol当りの比表面積は19.5m2/mmol-Alであった。
乾燥固体状ポリメチルアルミノキサン組成物のn-ヘキサンとトルエンへの溶解割合を求めたところ、それぞれ0.1mol%、0.4mol%と極めて低い値であった。
1. ビス(シクロペンタジエニル)ジルコニウムジクロライドを用いた重合
磁気撹拌装置を持つ500mlの四つ口フラスコにトルエン250mlを導入し、34℃にまで加熱した。これにアルミニウム原子換算で0.16g(5.93mmol)の固体状ポリメチルアルミノキサン組成物(Al/O=1.20)のトルエンスラリー溶液を加え、さらにAl/Zrのモル比が5000となるようにビス(シクロペンタジエニル)ジルコニウムジクロライド(Cp2ZrCl2)を加え、40℃に昇温しながらエチレンガスを吹き込んだ。10分後に、エチレンガスの供給を止め、メタノールを投入して触媒を失活させた。生成したポリエチレンを濾過乾燥し、重合活性を求めたところ64×106g-PE/mol-Zr・atm・hrであった。
得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。また、高温GPCにより求めた分子量は16万で、Mw/Mnは2.7であった。
上記で得られた固体状ポリメチルアルミノキサン組成物を用いたこと以外は実施例4の(3)2.記載の方法と同様に触媒調製し、得られた触媒の重合評価を行ったところ、80gのポリマーを得た。重合活性は約5300g-PE/g-cat・hrであった。得られたポリマーはさらさらした微粒子状で、重合後の反応器への付着がないものであった。
Claims (15)
- (i)アルミニウム含有量が36質量%から43質量%の範囲にあり、かつ
(ii)メチル基の総モル数に対するトリメチルアルミニウム部位に由来するメチル基のモル分率が12モル%以下であり、かつ
(iii)粒子状であり、体積基準のメジアン径が0.1μm~5μm未満の範囲である
固体状ポリメチルアルミノキサン組成物。 - 25℃におけるn-ヘキサンに対する溶解度が0~2モル%であり、かつ
25℃におけるトルエンに対する溶解度が0~2モル%である
請求項1に記載の組成物。 - 下記式で示される均一性が0.45以下である請求項1ないし請求項2に記載の組成物。
均一性 = ΣXi|d(0.5) - Di|/d(0.5)ΣXi
(ここで、Xiは粒度分布のヒストグラムにおける固体状アルミノキサン組成物の粒子iの体積百分率、d(0.5)は前記ヒストグラムにおける体積基準のメジアン径、Diは前記ヒストグラムにおける粒子iの体積基準径を示す。) - 比表面積が、10~25m2/mmol-Alの範囲である
請求項1~ 3のいずれかに記載の組成物。 - 以下の一般式(I)で示される単位を含むポリメチルアルミノキサンとトリメチルアルミニウムを含有する、
請求項1~ 4のいずれかに記載の組成物。
-[(Me)AlO]n- (I)
(式中、nは10~50の整数を示す。) - SiO2を含有しない、請求項1~5のいずれかに記載の組成物。
- (a)下記一般式(II)で示される単位を含むポリメチルアルミノキサンとトリメチルアルミニウムを含有する芳香族系炭化水素溶液(以下、溶液状ポリメチルアルミノキサン組成物と称す)を加熱して、ポリメチルアルミノキサンとトリメチルアルミニウムを含有する固体状ポリメチルアルミノキサン組成物を析出させる工程を含み、工程(a)に先だって前記溶液状ポリメチルアルミノキサン組成物に乾燥不活性ガスをバブリングする、および/または工程(a)の少なくとも一部の期間中に前記溶液状ポリメチルアルミノキサン組成物に乾燥不活性ガスをバブリングする、請求項1~6のいずれかに記載の固体状ポリメチルアルミノキサン組成物の製造方法。
-[(Me)AlO]n- (II)
(式中、nは1~50の整数を示す。) - 前記加熱前の溶液状ポリメチルアルミノキサン組成物は、メチル基の総モル数に対するトリメチルアルミニウム部位に由来するメチル基のモル分率が15モル%以下である、請求項7に記載の製造方法。
- 工程(a)において、
(i)80℃~200℃の範囲の加熱温度、及び
(ii)5分間以上24時間未満の加熱時間から、
適した加熱温度及び加熱時間を選択して固体状ポリメチルアルミノキサン組成物を析出させる、請求項8または9に記載の製造方法。 - 工程(a)で原料として用いる溶液状ポリメチルアルミノキサン組成物が、アルミニウム-酸素-炭素結合を有するアルキルアルミニウム化合物を熱分解することにより得られるものである、
請求項7~9のいずれかに記載の製造方法。 - 前記アルミニウム-酸素-炭素結合を有するアルキルアルミニウム化合物は、トリメチルアルミニウムと含酸素有機化合物との反応により調製されるものである、
請求項10に記載の製造方法。 - 前記含酸素有機化合物が、一般式(III)で示される脂肪族または芳香族カルボン酸である、請求項11に記載の製造方法。
R1-(COOH)n (III)
(式中、R1は、C1~C20の直鎖あるいは分岐したアルキル基、アルケニル基、アリール基の炭化水素基を表し、nは1~5の整数を表す。) - 前記トリメチルアルミニウムと含酸素有機化合物との反応は、トリメチルアルミニウムに含まれるアルミニウム原子と含酸素化合物中の酸素原子のモル比が、1.15~1.4:1の範囲となるように行う、請求項11または12に記載の製造方法。
- 請求項1~6のいずれかに記載の固体状ポリメチルアルミノキサン組成物と下記一般式(IV)で表される遷移金属化合物を触媒成分として含有するオレフィン類の重合触媒。
MR5R6R7R8 (IV)
(式中、Mは遷移金属元素を示し、かつR5, R6, R7, R8は、共同で1個または2個のシクロアルカジエニル骨格を有する有機基を示すか、または独立して、炭素数1~20の炭化水素基、アルコシキ基、アリーロキシ基、アルキルシリル基、アルキルアミド基、アルキルイミド基、アルキルアミノ基、アルキルイミノ基、水素原子及びハロゲン原子から成る群から選ばれる1種の有機基若しくは原子を示す。) - 請求項14に記載の触媒を用いてオレフィン類を重合することを含む、ポリオレフィン類の製造方法。
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SG11201406100WA (en) | 2014-11-27 |
JP2017019828A (ja) | 2017-01-26 |
KR20140138337A (ko) | 2014-12-03 |
KR102009005B1 (ko) | 2019-10-23 |
EP2862889A4 (en) | 2015-11-25 |
EP2862889A1 (en) | 2015-04-22 |
CN104321367B (zh) | 2017-08-18 |
JPWO2013146337A1 (ja) | 2015-12-10 |
US9340630B2 (en) | 2016-05-17 |
JP6158994B2 (ja) | 2017-07-05 |
EP2862889B1 (en) | 2017-01-04 |
CN104321367A (zh) | 2015-01-28 |
JP6063449B2 (ja) | 2017-01-18 |
US20150057418A1 (en) | 2015-02-26 |
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