WO2006070886A1 - 超高分子量エチレン系共重合体パウダー - Google Patents
超高分子量エチレン系共重合体パウダー Download PDFInfo
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- WO2006070886A1 WO2006070886A1 PCT/JP2005/024133 JP2005024133W WO2006070886A1 WO 2006070886 A1 WO2006070886 A1 WO 2006070886A1 JP 2005024133 W JP2005024133 W JP 2005024133W WO 2006070886 A1 WO2006070886 A1 WO 2006070886A1
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- molecular weight
- carbon atoms
- copolymer powder
- compound
- ethylene copolymer
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- 239000000843 powder Substances 0.000 title claims abstract description 80
- 229920001038 ethylene copolymer Polymers 0.000 title claims abstract description 65
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- 125000003118 aryl group Chemical group 0.000 claims abstract description 11
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 7
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- 238000006243 chemical reaction Methods 0.000 claims description 39
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- 239000002904 solvent Substances 0.000 claims description 34
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- 239000011949 solid catalyst Substances 0.000 claims description 30
- 239000011777 magnesium Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 15
- 125000004429 atom Chemical group 0.000 claims description 15
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- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 8
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- 239000000047 product Substances 0.000 description 7
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- 238000005259 measurement Methods 0.000 description 6
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- 229910003480 inorganic solid Inorganic materials 0.000 description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 5
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 5
- 150000003377 silicon compounds Chemical class 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052790 beryllium Inorganic materials 0.000 description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 4
- 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 4
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- 125000006176 2-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(C([H])([H])*)C([H])([H])C([H])([H])[H] 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
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- 125000001624 naphthyl group Chemical group 0.000 description 3
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 3
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- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
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- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 2
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 description 1
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- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical group O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001334 alicyclic compounds Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000004718 beta keto acids Chemical group 0.000 description 1
- HQMRIBYCTLBDAK-UHFFFAOYSA-M bis(2-methylpropyl)alumanylium;chloride Chemical compound CC(C)C[Al](Cl)CC(C)C HQMRIBYCTLBDAK-UHFFFAOYSA-M 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- IZAOMHQHYCDRBR-UHFFFAOYSA-N butoxy-bis(2-methylpropyl)alumane Chemical compound CCCC[O-].CC(C)C[Al+]CC(C)C IZAOMHQHYCDRBR-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- QABCGOSYZHCPGN-UHFFFAOYSA-N chloro(dimethyl)silicon Chemical compound C[Si](C)Cl QABCGOSYZHCPGN-UHFFFAOYSA-N 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- ZXIJMRYMVAMXQP-UHFFFAOYSA-N cycloheptene Chemical compound C1CCC=CCC1 ZXIJMRYMVAMXQP-UHFFFAOYSA-N 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
- 238000010908 decantation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000004796 dialkyl magnesium compounds Chemical group 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- FSBVERYRVPGNGG-UHFFFAOYSA-N dimagnesium dioxido-bis[[oxido(oxo)silyl]oxy]silane hydrate Chemical compound O.[Mg+2].[Mg+2].[O-][Si](=O)O[Si]([O-])([O-])O[Si]([O-])=O FSBVERYRVPGNGG-UHFFFAOYSA-N 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LDLDYFCCDKENPD-UHFFFAOYSA-N ethenylcyclohexane Chemical compound C=CC1CCCCC1 LDLDYFCCDKENPD-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001891 gel spinning Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052806 inorganic carbonate Inorganic materials 0.000 description 1
- 229910001853 inorganic hydroxide Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- BVRHQICYSINRIG-UHFFFAOYSA-N iron;magnesium;silicic acid Chemical compound [Mg].[Mg].[Mg].[Fe].O[Si](O)(O)O.O[Si](O)(O)O BVRHQICYSINRIG-UHFFFAOYSA-N 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- BLQJIBCZHWBKSL-UHFFFAOYSA-L magnesium iodide Chemical compound [Mg+2].[I-].[I-] BLQJIBCZHWBKSL-UHFFFAOYSA-L 0.000 description 1
- 229910001641 magnesium iodide Inorganic materials 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- LKPLKUMXSAEKID-UHFFFAOYSA-N pentachloronitrobenzene Chemical compound [O-][N+](=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl LKPLKUMXSAEKID-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XBFJAVXCNXDMBH-UHFFFAOYSA-N tetracyclo[6.2.1.1(3,6).0(2,7)]dodec-4-ene Chemical compound C1C(C23)C=CC1C3C1CC2CC1 XBFJAVXCNXDMBH-UHFFFAOYSA-N 0.000 description 1
- HVPDJRWVVGJXFY-UHFFFAOYSA-N tetracyclo[6.4.0.02,4.05,7]dodec-10-ene Chemical compound C12C(C3C(C4CC=CCC14)C3)C2 HVPDJRWVVGJXFY-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- SQBBHCOIQXKPHL-UHFFFAOYSA-N tributylalumane Chemical compound CCCC[Al](CCCC)CCCC SQBBHCOIQXKPHL-UHFFFAOYSA-N 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- YGRHYJIWZFEDBT-UHFFFAOYSA-N tridecylaluminum Chemical compound CCCCCCCCCCCCC[Al] YGRHYJIWZFEDBT-UHFFFAOYSA-N 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- ORYGRKHDLWYTKX-UHFFFAOYSA-N trihexylalumane Chemical compound CCCCCC[Al](CCCCCC)CCCCCC ORYGRKHDLWYTKX-UHFFFAOYSA-N 0.000 description 1
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 1
- LFXVBWRMVZPLFK-UHFFFAOYSA-N trioctylalumane Chemical compound CCCCCCCC[Al](CCCCCCCC)CCCCCCCC LFXVBWRMVZPLFK-UHFFFAOYSA-N 0.000 description 1
- CNWZYDSEVLFSMS-UHFFFAOYSA-N tripropylalumane Chemical compound CCC[Al](CCC)CCC CNWZYDSEVLFSMS-UHFFFAOYSA-N 0.000 description 1
- DPTWZQCTMLQIJK-UHFFFAOYSA-N tris(3-methylbutyl)alumane Chemical compound CC(C)CC[Al](CCC(C)C)CCC(C)C DPTWZQCTMLQIJK-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
- C08F210/18—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers with non-conjugated dienes, e.g. EPT rubbers
-
- 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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
Definitions
- the present invention relates to an ultra-high molecular weight ethylene copolymer powder having an ultra-high molecular weight having an intrinsic viscosity (7?) Of lOdlZg or more, a high bulk density, excellent transparency, and flexibility.
- the present invention relates to a molded product and a fiber that can also obtain the copolymer powder strength.
- ultra-high molecular weight polyolefin particularly ultra-high molecular weight polyethylene
- ultra-high molecular weight polyethylene has superior impact resistance, wear resistance, slidability, and chemical resistance compared to general-purpose polyethylene, and must be used as a sliding part.
- Can do since it has a small friction coefficient, it is used for skis and the like.
- ultra-high molecular weight polyethylene usually has high crystallinity and is white and opaque, and even if it is in the form of a thin sheet or film, it is inferior in transparency, and the design properties such as the brand name of the ski base are impaired.
- Patent Document 1 proposes an ultrahigh molecular weight ethylene copolymer obtained from ethylene and other a -olefins.
- Ultra high molecular weight polyethylene has a high molecular weight and poor fluidity when melted, so it is difficult to mold into pellets like ordinary polyethylene at polyethylene manufacturing sites. Shipped in shape. For this reason, ultra high molecular weight polyethylene in the form of powder is used when molding ultra high molecular weight polyethylene.
- an ultra-high molecular weight polyethylene molded body for skis is manufactured by filling ultra-high molecular weight polyethylene powder into a cylindrical mold and then compressing and molding the molded product thinly in the circumferential direction. Yes.
- the bulk density of the ultra high molecular weight polyethylene powder is low, a sufficient amount of ultra high molecular weight polyethylene powder does not enter the molded product when filling the mold, and air bubbles easily enter the molded product.
- a method of extending the molding time by increasing the volume of the mold can be considered. As the amount of heat and the amount of heat dissipation increase, there is a problem that the power consumed is significantly increased. In addition, this method requires that the working distance and working time of the compressor be increased, so that the molding efficiency is significantly reduced.
- the bulk density of the ultrahigh molecular weight polyethylene powder to be produced is very important.
- the bulk density it is possible to increase the weight of the ultrahigh molecular weight polyethylene contained in the polymerization vessel per unit volume, so the concentration of the ultrahigh molecular weight polyethylene powder in the polymerization vessel is increased. be able to.
- This bulk density is also important when transporting and storing ultrahigh molecular weight polyethylene powder that has also been discharged from the polymerization vessel. The higher the bulk density, the greater the amount of storage per unit volume that is less clogged during transportation.
- the bulk density of ultrahigh molecular weight polyethylene powder is one of the extremely important characteristics required for ultrahigh molecular weight polyethylene.
- Patent Document 1 did not discuss the bulk density of this extremely important ultrahigh molecular weight polyethylene powder.
- Patent Document 1 Japanese Patent Fair 5 -86803
- the present invention has been made in view of the above problems, and can be produced at an efficient temperature in an industrial process, and has a high bulk density, transparency, excellent flexibility, and a high molecular weight ethylene system.
- An object is to provide a copolymer powder.
- the present invention is as follows.
- HAZE of the molded body of the copolymer powder is 30% or more and 80% or less
- the titanium compound represented by the following general formula 3 is added to the carrier (A-1) prepared by the reaction at 60 ° C or higher and 150 ° C or lower with the chlorinated agent represented by the following general formula 2.
- M 1 is a metal atom other than magnesium belonging to the group of groups 1, 2, 12, and 13 in the periodic table, and R 2 , R 3 and R 4 are carbon atoms, respectively.
- a hydrocarbon group of 2 or more and 20 or less, and ⁇ , j8, a, b, and c are real numbers that satisfy the following relationship: 0 ⁇ ⁇ , 0 ⁇ j8, 0 ⁇ a, 0 ⁇ b, 0 ⁇ c , 0, a + b, 0 ⁇ c / ( ⁇ + j8) ⁇ 2, ka + 2 j8 a + b + c (where k is the valence of M 1 ))
- R 5 is a hydrocarbon group having 1 to 12 carbon atoms, and d and e are real numbers that satisfy the following relationship: 0, d, 0 ⁇ e, 0 ⁇ d + e ⁇ 4)
- the ultra-high molecular weight ethylene copolymer powder of the present invention has an intrinsic viscosity) of lOdlZg or more, and is excellent in wear characteristics, mechanical properties and molding processability, and compared to conventional ultra-high molecular weight polyethylene. In addition, it has the effect of excellent transparency and flexibility with low density. Furthermore, it can be manufactured stably and continuously over a long period of time when the bulk density is high in industrial processes.
- ethylene a-olefin having 3 to 20 carbon atoms
- cyclic olefin having 3 to 20 carbon atoms
- formula CH ⁇ ⁇
- R 1 is an aryl having 6 to 20 carbon atoms.
- the a-olefin having 3 to 20 carbon atoms in the present invention includes, for example, propylene, 1-butene, 1-pentene, 1-hexene, 4-methyl 1-pentene, 1-octene, 1-decene 1-dedecene , 1-tetradecene, 1-xadecene, 1-octadecene, and 1-eicosene, and selected from the group consisting of cyclic olefins having 3 to 20 carbon atoms such as cyclobenten, cyclohexene, cycloheptene, norbornene, 5-methyl 2 Selected from the group consisting of norbornene, tetracyclododecene, and 2-methyl-1,4,5,8 dimethano-1,2,3,4,4a, 5,8,8a-octahydronaphthalene.
- CH is. ⁇ ⁇ (where R 1
- Is, for example, styrene, vinylcyclohexane, etc., and linear, branched, or cyclic gen having 4 to 20 carbon atoms is, for example, 1,3 butadiene, 1,4 pentagen, Selected from the group consisting of 1,5 hexagen, 1,4 hexagen, 1,6-octagen, 1,7-octagen and cyclohexagen.
- the density, flexibility, transparency, and physical properties of the molded article of the ultrahigh molecular weight ethylene copolymer powder are controlled by copolymerization of ethylene and the above olefins (comonomer). Is possible.
- the comonomer content in the copolymer 0.01 mol% to 5 mol 0 /.
- the following range is preferred, more preferably 0.1 mol% or more and 2 mol% or less, and still more preferably 0.2 mol% or more and 1.0 mol% or less.
- a comonomer is contained in the copolymer in an amount of 0.01 mol% or more.
- the content of a-olefin exceeds 5 mol%, the density is greatly reduced, and in the suspension polymerization method, it dissolves in the solvent used or a bulk polymer is formed, so that stable continuous operation is possible. There is a fear that it cannot be done.
- the polymer becomes easy to stick and a lump polymer is formed or it adheres as a scale to the inner surface of the reactor, so a stable continuous operation cannot be performed.
- the ultra high molecular weight ethylene copolymer powder of the present invention has an intrinsic viscosity r? Measured in decalin at 135 ° C of lOdlZg or more and 34dlZg or less.
- the force is 7 to 11 dlZg.
- the ultrahigh molecular weight ethylene copolymer having an r? of less than lOdlZg may significantly deteriorate the wear resistance required for the copolymer.
- An ultra-high molecular weight ethylene copolymer having ⁇ exceeding 34 dlZg may significantly deteriorate the molding processability.
- the intrinsic viscosity is widely used for measuring the molecular weight of a polymer
- the viscosity average molecular weight (Mv) of the ultrahigh molecular weight ethylene copolymer powder of the present invention is determined by adding an ultrahigh molecular weight ethylene copolymer powder in decalin. From 7? (DlZg) obtained by dissolving at different concentrations and extrapolating the solution viscosity obtained at 135 ° C to 0, it can be calculated by the following formula 1.
- Mv of the ultrahigh molecular weight ethylene copolymer powder of the present invention obtained from this formula is usually It is 1 million or more and 10 million or less, preferably 2 million or more and 8 million or less.
- the ultra high molecular weight ethylene copolymer powder having an Mv of less than 100,000 may significantly deteriorate the abrasion resistance required for the copolymer powder.
- Ultra high molecular weight ethylene copolymer powder having an Mv of over 10 million may cause a significant deterioration in molding processability.
- the method for controlling the molecular weight of the obtained ultrahigh molecular weight ethylene copolymer powder is not particularly limited, for example, the concentration of hydrogen relative to ethylene in the polymerization vessel, the polymerization temperature, and the organometallic compound It can be controlled by the concentration of [B].
- the molecular weight can be increased by reducing the concentration of hydrogen relative to ethylene in the polymerization vessel. Further, the molecular weight can be increased by lowering the temperature in the polymerization vessel. Further, the molecular weight can be increased by reducing the concentration of the organometallic compound [B].
- HAZE which is an index of transparency of the ultrahigh molecular weight ethylene copolymer powder of the present invention, is 30% or more and 80% or less, preferably 30% or more and 75% when measured by the method of ASTM D1003. It is as follows.
- a press sheet is prepared by pressing an ultrahigh molecular weight ethylene copolymer in accordance with ASTM D1928 Procedure C using a 60 mm long, 60 mm wide, 2 mm thick mold. Is called “HAZE of the compact of the copolymer powder”.
- an aluminum plate with a thickness of 0.1 mm is placed on a smooth steel plate with a thickness of 5 mm, and then a polyethylene terephthalate film with a thickness of 50 ⁇ m that is not coated with cellophane.
- a 60 mm long, 60 mm wide, 2 mm thick mold is placed on top of this, 8 g of an ultrahigh molecular weight ethylene copolymer is placed thereon, the above polyethylene terephthalate film is placed thereon, and the above aluminum is further added. Place the steel plate, and then place the above-mentioned iron plate.
- the transparency of the obtained ultrahigh molecular weight ethylene copolymer powder can be controlled by the density of the ultrahigh molecular weight ethylene copolymer powder.
- the density of the ultrahigh molecular weight ethylene copolymer powder can be controlled by changing the comonomer concentration relative to ethylene in the polymerization vessel. Specifically, by increasing the comonomer concentration with respect to ethylene in the polymerization vessel, the density of the ultrahigh molecular weight ethylene copolymer powder decreases, and accordingly, the ultrahigh molecular weight ethylene copolymer powder. Improves transparency.
- the bulk density of the ultrahigh molecular weight ethylene copolymer powder of the present invention is the same as that of the powder obtained by washing the copolymer powder with hexane and methanol and then drying at 90 ° C for 1 hour. It was obtained by measuring according to JIS K-6721.
- the bulk density of the ultrahigh molecular weight ethylene copolymer powder of the present invention is 0.35 gZcm 3 or more and 0.60 g / cm 3 or less, preferably 0.40 gZcm 3 or more and 0.55 gZcm 3 or less.
- the bulk density is less than 0.35 gZcm 3 , the bulk density is too low, so that when the mold is filled, a sufficient amount of ultra-high molecular weight ethylene copolymer powder does not enter the molded product, and there are bubbles in the molded product. There is a risk that it will be easy to enter.
- a powder having a bulk density exceeding 0.60 gZcm 3 is not preferred because the powder fluidity may be lowered.
- the method for controlling the bulk density of the obtained ultrahigh molecular weight ethylene copolymer powder is not particularly limited.
- the slurry concentration in the polymerization system and the ultrahigh molecular weight ethylene copolymer per catalyst are used. It can be controlled by the productivity of coalesced powder.
- the productivity of the ultrahigh molecular weight ethylene copolymer powder per catalyst is represented by the number of grams of the ultrahigh molecular weight ethylene copolymer powder produced per catalyst lg.
- the bulk density can be increased by increasing the slurry concentration.
- the bulk density can be increased by increasing the productivity of the ultrahigh molecular weight ethylene copolymer powder per catalyst.
- the ultrahigh molecular weight ethylene copolymer powder of the present invention preferably has a density (gZcm 3 ) measured according to ASTM D1505 of 0.900 or more and 0.940 or less.
- the press sheet used for the HAZE measurement was annealed at 120 ° C. for 1 hour and further cooled at 25 ° C. for 1 hour to obtain a sample for density measurement.
- a method for producing the ultra high molecular weight ethylene copolymer powder of the present invention will be described.
- the catalyst for producing the ultrahigh molecular weight ethylene copolymer powder of the present invention is not particularly limited, but it is preferable to use the catalyst described below.
- the catalyst comprises a solid catalyst component [A] and an organometallic compound component [B].
- the solid catalyst component [A] is prepared by reacting an organic magnesium compound soluble in an inert hydrocarbon solvent represented by the following general formula 1 with a chlorinating agent represented by the following general formula 2. Obtained by supporting a titanium compound on the supported carrier (A-1), and the reaction between the organomagnesium compound and the chlorinating agent is performed at 60 ° C or higher and 150 ° C or lower. is required.
- the reaction rate between the organomagnesium compound and the chlorinating agent is too slow, so that the cohesive strength of the solid produced by the reaction decreases, and the bulk density of the solid catalyst component [A]
- the bulk density of the ultrahigh molecular weight ethylene copolymer powder produced in the presence of the solid catalyst component [A] is significantly reduced.
- the reaction rate between the organomagnesium compound and the chlorinating agent becomes too high, and the aggregate structure of the solid produced by the reaction becomes distorted and the solid form becomes uneven. Therefore, the bulk density of the solid catalyst component [A] is lowered, and for this reason, the bulk density of the ultrahigh molecular weight ethylene copolymer powder produced in the presence of the solid catalyst component [A] is significantly lowered.
- (A-1) which is a carrier of the solid catalyst component [A] of this catalyst, is an organic magnesium compound represented by the following general formula 1 that is soluble in an inert hydrocarbon solvent, and the following general formula 2 It is synthesized by reaction with a chlorinating agent represented by
- M 1 is a metal atom other than magnesium belonging to the group of groups 1, 2, 12, and 13 in the periodic table, and R 2 , R 3 and R 4 are carbon atoms, respectively.
- a hydrocarbon group of 2 or more and 20 or less, and ⁇ , j8, a, b, and c are real numbers that satisfy the following relationship: 0 ⁇ ⁇ , 0 ⁇ j8, 0 ⁇ a, 0 ⁇ b, 0 ⁇ c , 0, a + b, 0 ⁇ c / ( ⁇ + j8) ⁇ 2, ka + 2 j8 a + b + c (where k is the valence of M 1 ))
- This compound is shown in the form of a complex complex of organomagnesium soluble in an inert hydrocarbon solvent, but it is a dihydrocarbylmagnesium compound and complexes of this compound with other metal compounds. Includes everything.
- Q Symbol
- the hydrocarbon groups represented by R 2 and R 3 are each an alkyl group, a cycloalkyl group or an aryl group, for example, methyl, ethyl, propyl, butyl, propyl, Examples include xyl, octyl, decyl, cyclohexyl, and a phenyl group.
- R 2 and R 3 are each an alkyl group.
- the metal atom M 1 can be a metal atom other than magnesium belonging to the group that also includes Group 1, Group 2, Group 12, and Group 13 forces of the periodic table, such as lithium, Examples include sodium, potassium, beryllium, zinc, boron, and aluminum. Aluminum, boron, beryllium, and zinc are particularly preferable.
- At least one of R 2 and R 3 is a secondary or tertiary alkyl group having 4 to 6 carbon atoms, preferably R 2 and R 3 are both 4 to 6 carbon atoms, One is a secondary or tertiary alkyl group.
- R 2 and R 3 are alkyl groups having different carbon numbers, preferably R 2 is an alkyl group having 2 or 3 carbon atoms, and R 3 is an alkyl group having 4 or more carbon atoms thing.
- At least one of R 2 and R 3 is a hydrocarbon group having 6 or more carbon atoms, preferably an alkyl group that becomes 12 or more when the number of carbon atoms contained in R 2 and R 3 is added.
- the secondary or tertiary alkyl group having 4 to 6 carbon atoms in (1) includes 1 methylpropyl, 2-methylpropyl, 1,1-dimethyl. Ethyl, 2-methylbutyl, 2-ethylpropyl, 2,2-dimethylpropyl, 2-methylpentyl, 2-ethylbutyl, 2,2-dimethylbutyl, 2-methyl-2-ethylpropyl groups, etc. are used, and 1 methylpropyl group Is particularly preferred.
- examples of the alkyl group having 2 or 3 carbon atoms in (2) include ethyl, 1-methylethyl, propyl and the like, and ethyl is particularly preferred.
- Examples of the alkyl group having 4 or more carbon atoms include butyl, pentyl, hexyl, heptyl and octyl groups, with butyl and hexyl groups being particularly preferred.
- examples of the hydrocarbon group having 6 or more carbon atoms in (3) include hexyl, heptyl, octyl, nor, decyl, phenyl, and 2-naphthyl groups.
- examples of the hydrocarbon groups hexyl and octyl groups are particularly preferred among the alkyl groups that are preferred.
- the organomagnesium compound is used as an inert hydrocarbon solution.
- the solution contains a trace amount of a Lewis basic compound such as ether, ester, and amine. Can be used without any problem.
- alkoxy group (OR 4 )
- R 4 an alkyl group or aryl group having 1 to 12 carbon atoms is preferable, and an alkyl group or aryl group having 3 to 10 carbon atoms is particularly preferable.
- organomagnesium compounds have the general formulas R 2 MgX and R 2 Mg (R 2 is as defined above.
- the order of the reaction is as follows: a method of caloric alcohol in the organomagnesium compound, an organomagnesium compound in the alcohol It is possible to use a method of keeping a cover, or a method of shifting both of them simultaneously.
- the reaction ratio between the organomagnesium compound soluble in the inert hydrocarbon solvent and the alcohol is not particularly limited.
- the alkoxy group-containing organic magnesium compound obtained has a reaction ratio with respect to all metal atoms.
- the range of the molar composition ratio cZ ( ⁇ + j8) of the alkoxy group is 0 ⁇ c / (a + ⁇ ) ⁇ 2, and 0 ⁇ c / (a + j8) ⁇ l is particularly preferred! / ⁇ .
- R 5 is a hydrocarbon group having 1 to 12 carbon atoms, and d and e are real numbers that satisfy the following relationship: 0, d, 0 ⁇ e, 0 ⁇ d + e ⁇ 4)
- the hydrocarbon group represented by R 5 is an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, or an aromatic hydrocarbon group.
- a C1-C10 alkyl group is preferred, such as methyl, ethyl, propyl, 1-methylethyl group, etc.
- 1-3 alkyl groups are particularly preferred.
- D and e are numbers greater than 0 satisfying the relationship d + e ⁇ 4, and e is particularly preferably 2 or 3.
- These compounds include HSiCl, HSiCl CH, HSiCl C H, HSiCl (C H),
- H CH), H SiCl (CH), H SiCl (C H), HSiCl (CH), HSiCl (C H), HS
- the inert hydrocarbon solvent in the present invention includes aliphatic hydrocarbons such as pentane, hexane and heptane, aromatic hydrocarbons such as benzene and toluene, and alicyclic compounds such as cyclohexane and methylcyclohexane.
- aliphatic hydrocarbons such as pentane, hexane and heptane
- aromatic hydrocarbons such as benzene and toluene
- alicyclic compounds such as cyclohexane and methylcyclohexane.
- a hydrocarbon etc. are mentioned.
- a silicon chloride compound is preliminarily used as a reaction solvent, for example, an inert hydrocarbon solvent, chlorinated hydrocarbons such as 1,2-dichloroethane, o-dichlorobenzene and dichloromethane, or ethers such as jetyl ether and tetrahydrofuran. It is preferable to use after diluting with a medium or a mixed medium thereof. In particular, non-activated hydrogenated solvents are preferred in terms of catalyst performance.
- a silicon chloride compound is 0.01-: LOO mol with respect to 1 mol of organomagnesium compounds, Preferably, it is with respect to 1 mol of organomagnesium compounds.
- the range of the silicon chloride compound is 0.1 to 10 mol.
- reaction method a method of simultaneous addition in which an organomagnesium compound and a salty silicon compound are simultaneously introduced into the reactor and reacted, or after the silicon chloride compound is charged in the reactor in advance, the organomagnesium compound is added.
- a method of introducing the organic magnesium compound into the reactor in advance and a method of introducing a salt-silicon compound into the reactor after the organic magnesium compound has been charged into the reactor in advance.
- a method of introducing an organic magnesium compound into the reactor after charging is preferred.
- the solid component obtained by the above reaction is separated by filtration or decantation, and then thoroughly washed with an inert hydrocarbon solvent to remove unreacted substances! /, By-products, etc. U, prefer to be.
- the reaction temperature is 60 ° C or higher and 150 ° C or lower, preferably 65 ° C or higher and 150 ° C or lower, more preferably 70 ° C or higher and 150 ° C or lower.
- the temperature is 60 ° C or higher and 150 ° C or lower, the reaction between the organomagnesium compound and the chlorinating agent proceeds rapidly, whereby a highly active catalyst is obtained.
- a parenthesis catalyst By olefin polymerization using a parenthesis catalyst.
- the resulting polyolefin pow The die has a high bulk density.
- the temperature of the reactor is adjusted to a predetermined temperature and added simultaneously.
- the reaction temperature is adjusted to the predetermined temperature.
- the temperature of the reactor in which the silicon chloride compound is charged is adjusted to a predetermined temperature
- the reaction temperature is adjusted to a predetermined temperature by adjusting the temperature in the reactor to a predetermined temperature while introducing the gnesium compound into the reactor.
- the temperature of the reactor charged with the organomagnesium compound is adjusted to a predetermined temperature, and the chloride is added.
- the reaction temperature is adjusted to a predetermined temperature by adjusting the temperature in the reactor to a predetermined temperature while introducing a silicon compound into the reactor.
- the reaction between the organomagnesium compound and the salty silicon compound can also be carried out in the presence of a solid.
- This solid may be either an inorganic solid or an organic solid, but it is preferable to use an inorganic solid. The following are mentioned as an inorganic solid.
- inorganic solids include silica, alumina, silica'alumina, hydrated alumina, magnesium, tria, titer, zirca, calcium phosphate 'barium sulfate, calcium sulfate, magnesium silicate, magnesium' calcium, aluminum Silicate [(Mg'Ca) 0 ⁇ ⁇ 1 O-5SiO ⁇ ⁇ 0], Potassium silicate ⁇ Aluminum [K 0 ⁇ 3 ⁇ 1 O-6SiO ⁇ 2 ⁇
- magnesium iron silicate [(Mg'Fe) 2SiO] magnesium iron silicate [(Mg'Fe) 2SiO]
- aluminum silicate [Al O 'SiO] charcoal
- the specific surface area of the inorganic solid is preferably 20 m 2 Zg or more, particularly preferably 90 m 2 Zg or more.
- titanium compound (A-2) a titanium compound represented by the following general formula 3 is preferred.
- f is a real number of 0 or more and 4 or less
- R 6 is a hydrocarbon group of 1 to 20 carbon atoms
- X is a halogen atom.
- hydrocarbon group represented by R 6 examples include aliphatic hydrocarbon groups such as methyl, ethyl, propyl, butyl, pentyl, hexyl, 2-ethylhexyl, heptyl, octyl, decyl, and aryl groups, and cyclohexyl. , Alicyclic hydrocarbon groups such as 2-methylcyclohexyl and cyclopentyl groups, and aromatic hydrocarbon groups such as phenyl and naphthyl groups, etc., and aliphatic hydrocarbon groups are preferred.
- the halogen represented by X is preferably chlorine, which can include chlorine, bromine and iodine. It is possible to use a mixture of two or more (A-2), which is also selected for the above force.
- the amount of (A-2) used is 0. in terms of a molar ratio with respect to magnesium atoms contained in the solid component.
- the reaction temperature is not particularly limited, but it is preferably performed in the range of 25 ° C to 150 ° C.
- the method of supporting the titanium compound (A-2) on the carrier (A-1) is not particularly limited, and the excess of the titanium compound (A-1) is not limited.
- a method of reacting a titanium compound or a method of efficiently supporting the titanium compound by using a third component may be used.
- a titanium compound (A-2) and an organometallic compound (A-3) A method of carrying by a reaction with is preferable.
- (A-3) is preferably represented by the following general formula 4! /.
- M 2 is a metal atom other than magnesium belonging to the group of groups 1, 2, 12, and 13 in the periodic table, and R 7 and R 8 each have 2 or more carbon atoms.
- This compound is shown in the form of a complex complex of organomagnesium soluble in an inert hydrocarbon solvent, but it is a dihydrocarbylmagnesium compound and complexes of this compound with other metal compounds. Includes everything.
- the hydrocarbon group represented by R 7, R 8, R 9 , R 1C) and R 11 is an alkyl group, consequent opening alkyl or Ariru group, e.g., methyl, Echiru, Examples include propyl, butyl, propyl, hexyl, octyl, decyl, cyclohexyl, and a phenyl group, and an alkyl group is preferable.
- the metal atom M 2 can be a metal atom other than magnesium belonging to the group of groups 1, 2, 12, and 13 of the periodic table, for example, lithium, sodium Strength including potassium, beryllium, zinc, boron, aluminum and the like Aluminum, boron, beryllium, and zinc are particularly preferable.
- the ratio of magnesium to metal atom M 2 ⁇ Z ⁇ can be arbitrarily set, but is preferably in the range of 0.1 to 30, particularly 0.5 to 10.
- At least one of R 7 and R 8 is a secondary or tertiary alkyl group having 4 to 6 carbon atoms, preferably R 7 and R 8 are both 4 to 6 carbon atoms, At least one of them must be a secondary or tertiary alkyl group.
- R 7 and R 8 are alkyl groups having different carbon atoms, preferably is an alkyl group having 2 or 3 carbon atoms, and R 8 is an alkyl group having 4 or more carbon atoms. That's it.
- R 7 and R 8 is a hydrocarbon group having 6 or more carbon atoms, preferably an alkyl group that becomes 12 or more when the number of carbon atoms contained in R 7 and R 8 is added. .
- the secondary or tertiary alkyl group having 4 to 6 carbon atoms in (1) includes 1 methylpropyl, 2-methylpropyl, 1,1 dimethylethyl, 2-methylbutyl, 2-ethylpropyl, 2, 2- Dimethylpropyl, 2-methylpentyl, 2-ethylbutyl, 2,2-dimethylbutyl, 2-methyl-2-ethylpropyl and the like are used, and 1-methylpropyl group is particularly preferable.
- examples of the alkyl group having 2 or 3 carbon atoms in (2) include ethyl, 1-methylethyl, propyl and the like, and ethyl is particularly preferred.
- examples of the alkyl group having 4 or more carbon atoms include butyl, pentyl, hexyl, heptyl, octyl group, and the like, and butyl and hexyl groups are particularly preferable.
- examples of the hydrocarbon group having 6 or more carbon atoms in (3) include hexyl, heptyl, octyl, noel, decyl, phenyl, and 2-naphthyl groups.
- hydrocarbon groups hexyl and octyl groups are particularly preferred among the alkyl groups that are preferred.
- an increase in the number of carbon atoms contained in an alkyl group facilitates dissolution in an inert hydrocarbon solvent, but the use of an unnecessarily long chain alkyl group is undesirable in handling because the viscosity of the solution increases.
- the organomagnesium compound may be used as an inert hydrocarbon solution.
- the solution may contain a trace amount of a Lewis basic compound such as ether, ester, or amine, or may remain. Can be used without any problems.
- Y is alkoxy, siloxy, aryloxy, amided amide, N
- R 9 , R 10 and R 11 each independently represents a hydrocarbon group having 2 to 20 carbon atoms.
- an alkyl group or aryl group having 1 to 12 carbon atoms is preferable, and an alkyl group or aryl group having 3 to 10 carbon atoms is particularly preferable.
- organomagnesium compounds have the general formulas R 7 MgX and R 7 Mg (R 7
- the order of the reaction is determined by a method in which the alcohol is encapsulated in the organomagnesium compound, and the organomagnesium compound is encapsulated in the alcohol. It is possible to use a method of shifting, or a method of shifting both of them simultaneously.
- the reaction ratio between the organomagnesium compound soluble in the inert hydrocarbon solvent and the alcohol is not particularly limited.
- the alkoxy group-containing organic magnesium compound obtained has a reaction ratio with respect to all metal atoms.
- the range of the molar composition ratio cZ ( ⁇ + ⁇ ) of the alkoxy group is 0 ⁇ cZ (Y + ⁇ ) ⁇ 2, and 0 ⁇ cZ (Y + ⁇ ) ⁇ 1 is particularly preferable.
- the amount of ( ⁇ -3) used is preferably 0.01 or more and 20 or less in terms of the molar ratio of Mg contained in ( ⁇ -3) to magnesium contained in the solid component. 0.05 or more and 10 or less Is particularly preferred.
- the reaction temperature is not particularly limited, but is preferably in the range of ⁇ 80 ° C. to 150 ° C., more preferably in the range of 40 ° C. to 100 ° C.
- the order of addition of (A-2) and (A-3) is (A-2) followed by (A-3), (A-3) followed by (A-2), Any method of adding A-2) and (A-3) at the same time is possible, but the method of adding (A-2) and (A-3) at the same time is preferred.
- the molar ratio of (A-3) to (A-2) is preferably in the range of 0.1-10, and more preferably in the range of 0.5-5.
- the reaction between (A-2) and (A-3) is carried out in an inert hydrocarbon solvent, but it is preferable to use an aliphatic hydrocarbon solvent such as hexane or heptane.
- the catalyst obtained by force is used as a slurry solution using an inert hydrocarbon solvent. It is.
- the organometallic compound component [B] is preferably a compound containing a metal belonging to the group of groups 1, 2 and 13 of the periodic table, particularly organoaluminum compounds and Z or organomagnesium. I prefer compounds.
- the organoaluminum compound includes a general formula AIR 12 Z (wherein R 12 has 1 or more carbon atoms 2
- hydrocarbon group having 1 to 20 carbon atoms represented by R 12 includes aliphatic hydrocarbons, aromatic hydrocarbons, and alicyclic hydrocarbons.
- trimethylaluminum Triethylaluminum, tripropylaluminum, tributylaluminum, tri (2-methylpropyl) aluminum, tribentylaluminum, tri (3-methylbutyl) aluminum, trihexylaluminum, trioctylaluminum, tridecylaluminum, etc.
- Aluminum halide compounds such as trialkylaluminum, ethylaluminum chloride, ethylaluminum dichloride, di (2-methylpropyl) aluminum chloride, ethylaluminum sesqui-chloride, jetylaluminum bromide, etc.
- alkoxyaluminum compounds such as xoxide, di (2-methylpropyl) aluminum butoxide, siloxyaluminum compounds such as dimethylhydrosiloxyaluminum dimethyl, ethylmethylhydrosiloxyaluminum jetyl, and ethyldimethylsiloxyaluminum jetyl, and mixtures thereof.
- siloxyaluminum compounds such as dimethylhydrosiloxyaluminum dimethyl, ethylmethylhydrosiloxyaluminum jetyl, and ethyldimethylsiloxyaluminum jetyl, and mixtures thereof.
- a trialkylaluminum compound is particularly preferred!
- the organomagnesium compound the compound represented by the above general formula 1 is preferable.
- M 1 is a metal atom other than magnesium belonging to the group of groups 1, 2, 12, and 13 in the periodic table, and R 2 , R 3 and R 4 are carbon atoms, respectively.
- a hydrocarbon group of 2 or more and 20 or less, and ⁇ , j8, a, b, and c are real numbers that satisfy the following relationship: 0 ⁇ ⁇ , 0 ⁇ j8, 0 ⁇ a, 0 ⁇ b, 0 ⁇ c , 0 and a + b, 0 ⁇ c / ( ⁇ + j8) ⁇ 2, ka + 2 j8 a + b + c ( Where k is the valence of M 1 ))
- This compound is shown as a complex form of organomagnesium soluble in an inert hydrocarbon solvent, but it is a dialkylmagnesium compound and complexes of this compound with other metal compounds. Includes everything. ⁇ , j8, a, b, c, OR 4 is In its Nitsu is as already mentioned, damage Shi soluble compound desired inert hydrocarbon solvent, j8 Z a «0. M 1 it has been sigma preferred in the range of 5 to 10 More preferred is a compound wherein is aluminum.
- the solid catalyst component [A] and the organometallic compound component [B] may be added to the polymerization system under the polymerization conditions, or may be combined prior to the polymerization.
- the ratio of the two components to be combined is preferably in the range of 1 to 3000 mmol for the organometallic compound [B] with respect to the solid catalyst component [A] lg.
- the ultrahigh molecular weight ethylene copolymer powder of the present invention can be produced by copolymerizing ethylene by a suspension polymerization method or a gas phase polymerization method.
- a suspension polymerization method an inert hydrocarbon medium can be used as a medium, and olefins themselves can also be used as a solvent.
- Examples of powerful inert hydrocarbon media include aliphatic hydrocarbons such as propane, butane, isobutane, pentane, isopentane, hexane, heptane, octane, decane, dodecane, and kerosene; cyclopentane, Alicyclic hydrocarbons such as cyclohexane and methylcyclopentane; aromatic hydrocarbons such as benzene, toluene and xylene; halogenated hydrocarbons such as ethyl chloride, chlorobenzene and dichloromethane, or mixtures thereof It is out.
- aliphatic hydrocarbons such as propane, butane, isobutane, pentane, isopentane, hexane, heptane, octane, decane, dodecane, and kerosene
- cyclopentane Alicyclic hydrocarbons such as cyclo
- the polymerization temperature in the production method of the present invention is usually preferably 50 ° C or higher, more preferably 60 ° C or higher, still more preferably 70 ° C or higher, and more preferably 100 ° C or lower. It is in the range of 85 ° C or less.
- the polymerization pressure is usually normal pressure or more and 2 MPa or less, more preferably 0. IMPa or more and 1.5 MPa or less, more preferably 0. IMPa or more and 1. OMPa or less. Any of batch, semi-continuous and continuous methods can be used.
- Ultra high molecular weight polyethylene having a viscosity average molecular weight exceeding 1,000,000 is excellent in wear resistance, low friction and strength, so sliding members such as gears, bearing members, artificial joint substitutes, skis, etc.
- sliding members such as gears, bearing members, artificial joint substitutes, skis, etc.
- the ultrahigh molecular weight ethylene copolymer powder of the present invention is excellent in flexibility and transparency as well as low friction, it is particularly suitable for ski or snowboard sliding surfaces (nors). Is preferred.
- the strength is higher than that of ordinary ultra high molecular weight polyethylene, it is preferably used for battery separators and filters.
- the ultra-high molecular weight ethylene copolymer powder of the present invention can be molded using the same molding method as that for ordinary ultra-high molecular weight polyethylene.
- the ultra high molecular weight ethylene copolymer powder of the present invention can be molded by various known molding methods such as a method in which ultra high molecular weight polyethylene powder is put into a mold and compression-molded with heating for a long time or extrusion molding with a ram extruder. You can get a body.
- the ultrahigh molecular weight ethylene copolymer powder of the present invention is mixed with a plasticizer in a suitable solvent and extruded into a film shape. Also included are microporous films which can be drawn and then extracted with the solvent or plasticizer used. This film can be used for battery separators and the like. In this case, a film mixed with an inorganic material such as silica can be used.
- the ultrahigh molecular weight ethylene copolymer powder of the present invention is dissolved in a suitable solvent or plasticizer to prepare a gel-like mixture, and the ultrahigh elastic modulus is increased by a known gel spinning technique. Strength fibers can also be obtained.
- a press sheet was prepared by pressing an ultrahigh molecular weight ethylene copolymer according to ASTM D1928 Procedure C using a 60 mm long, 60 mm wide, 2 mm thick mold.
- an aluminum plate with a thickness of 0.1 mm was placed on a smooth iron plate with a thickness of 5 mm, and a polyethylene terephthalate film (Lumirror manufactured by Toray Industries, Inc.) with a thickness of 50 ⁇ m that was not coated with cellophane.
- a 60 mm long, 60 mm wide, 2 mm thick mold is placed on this, 8 g of ultrahigh molecular weight ethylene copolymer is placed on this, the above polyethylene terephthalate film is placed on this, and the above aluminum plate is further placed.
- HAZE was measured by the method of ASTM D 1003 using the press sheet as a test piece. Measuring instrument (Murakami Color Research Laboratory, grade name HM-100) Sample size 50 (W) * 10 (t) * 50 (h) mm, optical system conforming to ASTM D 1003>
- the bulk density was measured according to JIS K-6721 by washing the copolymer powder with hexane and methanol and then drying the powder at 90 ° C. for 1 hour.
- For washing with hexane add 2000 ml of hexane at 25 ° C to 100 g of powder to make a slurry, let it stand after sufficiently stirring, and remove 1500 ml of the supernatant liquid after the precipitate has settled. Then, the slurry was filtered through a 300-mesh wire mesh to separate the powder. Washing with methanol was carried out in the same manner as washing with hexane, except that 100 g of powder washed with hexane was used instead of hexane.
- Solid catalyst 2 (Comparative example)
- Solid catalyst 3 (Comparative example)
- Hexane, ethylene, 1-butene, and catalyst were fed continuously to a vessel type 200 liter polymerization reactor equipped with a stirrer.
- the polymerization temperature was kept at 70 ° C with a jacket.
- Hexane as solvent was fed at 65 liters ZHr.
- triisobutylaluminum and solid catalyst 1 were continuously supplied by a pump so that the polymer production rate was 6 kgZHr.
- Butene 1 was continuously supplied by a pump so that the gas phase concentration was 5 mol%.
- Ethylene was continuously supplied so that the polymerization pressure was 0.3 MPa.
- the polymerization slurry was continuously withdrawn so that the level of the polymerization reactor was kept constant, and the extracted slurry was sent to the drying step through a solvent separation step. Slurry extraction without the presence of bulk polymer was able to operate stably without blocking the piping.
- the catalytic activity was 20,000 g PE / g catalyst.
- the ultrahigh molecular weight ethylene copolymer obtained in this way was 14.9 dlZg in decalin (135 ° C), and the Mv obtained was 3 million.
- the bulk density was as high as 0.44 gZcm 3 .
- HAZE which is an indicator of transparency, was 53%, and it was very transparent. The density was 0.919 gZcm 3 . Table 1 includes other values.
- Example 1 Polymerization was carried out in the same manner as in Example 1 except that the solid catalyst 2 was used. As a result, the obtained ultrahigh molecular weight ethylene copolymer had ⁇ of 10.2 dlZg and Mv of 1.7 million. The bulk density was 0.32 g / cm 3 , which was significantly lower than that of Example 1. HAZE, which is an indicator of transparency, was 71%. The density was 0.920 gZcm 3 . Table 1 includes other values.
- Example 1 Polymerization was carried out in the same manner as in Example 1 except that the gas phase concentration of 1-butene was 2 mol%. As a result, the obtained ultrahigh molecular weight ethylene copolymer had an r? Of 16.6 dlZg and an Mv of 3.5 million. The bulk density was 0.45 g / cm 3 . HAZE, which is an indicator of transparency, was 69%. The density was 0.992 gZcm 3 . Table 1 includes other values.
- Example 3 1 Polymerization was carried out in the same manner as in Example 1 except that the gas phase concentration of butene was 10 mol%. As a result, the ultrahigh molecular weight ethylene copolymer obtained had an r? Of 12.9 dlZg and an Mv of 2.4 million. The bulk density was 0.43 gZcm 3 . HAZE, which is an indicator of transparency, was 46%. The density was 0.917 gZcm 3 . Table 1 includes other values.
- Example 1 Polymerization was carried out in the same manner as in Example 1 except that the polymerization temperature was 60 ° C. As a result, the obtained ultrahigh molecular weight ethylene copolymer had a 7? Of 18. ldl / g and an Mv of 4 million. The bulk density was 0.42 gZcm 3 . HAZE, which is an indicator of transparency, was 50%. The density was 0.918 g / cm 3 . Table 1 includes other values.
- Example 3 Polymerization was carried out in the same manner as in Example 3 except that the solid catalyst 2 was used. As a result, the presence of a bulk polymer was present in the ultrahigh molecular weight ethylene copolymer exiting from the drying step.
- the slurry extraction piping was able to operate continuously without clogging, but the obtained ultra-high molecular weight ethylene copolymer was 8. ldl / g and the viscosity average molecular weight was 1,200,000, which was compared with Example 3. It was extremely low power.
- the bulk density was 0.25 gZcm 3 , which was significantly lower than that of Example 3.
- HAZE which is an indicator of transparency, was 70%.
- the density was 0.920 gZcm 3 . Table 1 includes other values.
- Example 1 Polymerization was carried out in the same manner as in Example 1 except that 1-butene was used. As a result, the obtained polyethylene had an r? Of 21. Odl / g and a viscosity average molecular weight of 5 million. The bulk density was 0.40 gZcm 3 . HAZE, which is an index of transparency, was 82%, which was significantly higher than Example 1. The density was 0.992 g / cm 3 . Table 1 includes other values.
- Example 1 Polymerization was carried out in the same manner as in Example 1 except that the solid catalyst 3 was used. As a result, the obtained ultrahigh molecular weight ethylene copolymer had ⁇ of 13.8 dlZg and Mv of 2.67 million. The bulk density was 0.30 gZcm 3 , which was significantly lower than that of Example 1. HAZE, which is an indicator of transparency, was 58%. The density was 0.9921 gZcm 3 . Including other values Shown in Table 1 [Table 1]
- Example 1 A-1 0.98 14.9 70 5 20000 0.44 14.9 300 53 0.919 Comparative Example 1 A -2 3.61 11.3 70 5 35000 0.32 10.2 170 71 0.920 Example 2 A-1 0.98 14.9 70 2 18000 0.45 16.6 350 69 0.922 Example 3 A-1 0.98 14.9 70 10 22000 0.43 12.9 240 46 0.917 Example 4 A-1 0.98 14.9 60 5 16000 0.42 18.1 400 50 0.918 Comparative Example 2 A-2 3.61 11.3 70 10 45000 0.25 8.1 120 70 0.920 Comparative Example 3 A-1 0.98 14.9 70 0 18000 0.40 21.0 500 82 0.928 Comparative Example 4 A-3 0.70 17.1 70 10 17000 0.30 13.8 267 58 0.921
- the ultrahigh molecular weight ethylene copolymer of the present invention is excellent in transparency and flexibility, and is excellent in wear resistance, low friction and strength, a sliding member such as a gear, a bearing Parts, artificial joint substitutes, ski sliding surfaces, snowboard sliding surfaces, abrasives, various magnetic tape slip sheets, flexible disk liners, bulletproof materials, battery separators, various filters, foams, films, It can be suitably used in the fields of pipes, fibers, threads, fishing lines, cutting boards and the like.
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Abstract
Description
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BRPI0519278-1A BRPI0519278A2 (pt) | 2004-12-28 | 2005-12-28 | pà de copolÍmero de etileno de peso molecular ultra-elevado, e artigo moldado |
AT05844880T ATE502964T1 (de) | 2004-12-28 | 2005-12-28 | Ethylencopolymerpulver mit ultrahohem molekulargewicht |
EP05844880A EP1842862B1 (en) | 2004-12-28 | 2005-12-28 | Ultra high molecular weight ethylene copolymer powder |
JP2006550861A JP4386923B2 (ja) | 2004-12-28 | 2005-12-28 | 超高分子量エチレン系共重合体パウダー |
DE602005027125T DE602005027125D1 (de) | 2004-12-28 | 2005-12-28 | Ethylencopolymerpulver mit ultrahohem molekulargewicht |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007284660A (ja) * | 2006-03-22 | 2007-11-01 | Asahi Kasei Chemicals Corp | ポリオレフィンの製造方法 |
JP2008038065A (ja) * | 2006-08-09 | 2008-02-21 | Asahi Kasei Chemicals Corp | ポリオレフィンの製造方法およびポリオレフィン樹脂組成物 |
US20110040381A1 (en) * | 2007-11-06 | 2011-02-17 | Timothy James Kidd | Process for producing (ultra) high molecular weight polyethylene |
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JP5782558B1 (ja) * | 2014-11-14 | 2015-09-24 | 旭化成ケミカルズ株式会社 | ポリエチレンパウダー |
JP6487591B1 (ja) * | 2017-09-07 | 2019-03-20 | 旭化成株式会社 | 超高分子量エチレン系重合パウダー、及び、超高分子量エチレン系重合パウダーを用いた成型体 |
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JP2014133873A (ja) * | 2012-12-11 | 2014-07-24 | Asahi Kasei Chemicals Corp | ポリエチレンパウダー、成形体、及びリチウムイオン二次電池用セパレーター |
JP2014133874A (ja) * | 2012-12-11 | 2014-07-24 | Asahi Kasei Chemicals Corp | エチレン系重合体パウダー、成形体、及びリチウムイオン二次電池用セパレーター |
WO2015005287A1 (ja) * | 2013-07-10 | 2015-01-15 | 東ソー株式会社 | 超高分子量ポリエチレン粒子及びそれよりなる成形体 |
JP2015034287A (ja) * | 2013-07-10 | 2015-02-19 | 東ソー株式会社 | 超高分子量ポリエチレン粒子およびそれよりなる成形体 |
US10316119B2 (en) | 2013-07-10 | 2019-06-11 | Tosoh Corporation | Ultrahigh molecular weight polyethylene particles and molded product made thereof |
JP2015025035A (ja) * | 2013-07-24 | 2015-02-05 | 東ソー株式会社 | エチレン系重合体製造用触媒系及びそれを用いてなるエチレン系重合体の製造方法 |
JP2015157905A (ja) * | 2014-02-24 | 2015-09-03 | 旭化成ケミカルズ株式会社 | 超高分子量エチレン系共重合体パウダー及び成形体 |
JP2015174942A (ja) * | 2014-03-17 | 2015-10-05 | 東ソー株式会社 | 超高分子量ポリエチレン製切削薄膜 |
JP2015174941A (ja) * | 2014-03-17 | 2015-10-05 | 東ソー株式会社 | 超高分子量ポリエチレン製切削成形体 |
JP2015212373A (ja) * | 2014-04-18 | 2015-11-26 | 旭化成ケミカルズ株式会社 | 繊維用ポリエチレンパウダー、繊維、及び物品 |
JP6195403B1 (ja) * | 2016-03-25 | 2017-09-13 | 旭化成株式会社 | 超高分子量エチレン系共重合体パウダー、並びに、超高分子量エチレン系共重合体パウダーを用いた成型体 |
WO2017163848A1 (ja) * | 2016-03-25 | 2017-09-28 | 旭化成株式会社 | 超高分子量エチレン系共重合体パウダー、並びに、超高分子量エチレン系共重合体パウダーを用いた成型体 |
CN107438631A (zh) * | 2016-03-25 | 2017-12-05 | 旭化成株式会社 | 超高分子量乙烯类共聚物粉末以及使用了超高分子量乙烯类共聚物粉末的成型体 |
US10336843B2 (en) | 2016-03-25 | 2019-07-02 | Asahi Kasei Kabushiki Kaisha | Ultra-high molecular weight ethylene-based copolymer powder, and molded article using ultra-high molecular weight ethylene-based copolymer powder |
JP2018138642A (ja) * | 2017-02-24 | 2018-09-06 | 旭化成株式会社 | ポリエチレン粒子及び成形体 |
EP4219017A1 (en) | 2022-01-28 | 2023-08-02 | EcoUp Oyj | Method of pulverizing waste material |
Also Published As
Publication number | Publication date |
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BRPI0519278A2 (pt) | 2009-01-06 |
JP4386923B2 (ja) | 2009-12-16 |
EP1842862A4 (en) | 2009-03-11 |
JPWO2006070886A1 (ja) | 2008-06-12 |
ATE502964T1 (de) | 2011-04-15 |
EP1842862B1 (en) | 2011-03-23 |
US8173755B2 (en) | 2012-05-08 |
US20080071031A1 (en) | 2008-03-20 |
EP1842862A1 (en) | 2007-10-10 |
DE602005027125D1 (de) | 2011-05-05 |
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