WO2010034684A2 - Polyolefin compositions having good resistance at whitening - Google Patents
Polyolefin compositions having good resistance at whitening Download PDFInfo
- Publication number
- WO2010034684A2 WO2010034684A2 PCT/EP2009/062184 EP2009062184W WO2010034684A2 WO 2010034684 A2 WO2010034684 A2 WO 2010034684A2 EP 2009062184 W EP2009062184 W EP 2009062184W WO 2010034684 A2 WO2010034684 A2 WO 2010034684A2
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- WO
- WIPO (PCT)
- Prior art keywords
- butene
- ethylene
- copolymer
- olefm
- content
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 55
- 229920000098 polyolefin Polymers 0.000 title claims description 8
- 230000002087 whitening effect Effects 0.000 title abstract description 18
- VXNZUUAINFGPBY-UHFFFAOYSA-N ethyl ethylene Natural products CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims abstract description 92
- 229920001577 copolymer Polymers 0.000 claims abstract description 53
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000005977 Ethylene Substances 0.000 claims abstract description 31
- 229920001384 propylene homopolymer Polymers 0.000 claims abstract description 10
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 229920001038 ethylene copolymer Polymers 0.000 claims description 11
- 239000008096 xylene Substances 0.000 claims description 11
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 101150040364 TM1 gene Proteins 0.000 claims 1
- 239000007924 injection Substances 0.000 abstract description 10
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000000071 blow moulding Methods 0.000 abstract description 2
- 238000003856 thermoforming Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 24
- 238000006116 polymerization reaction Methods 0.000 description 24
- -1 polypropylene Polymers 0.000 description 24
- 150000001875 compounds Chemical class 0.000 description 23
- 229920000642 polymer Polymers 0.000 description 22
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 16
- 238000005259 measurement Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 11
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 238000002347 injection Methods 0.000 description 9
- 229920006395 saturated elastomer Polymers 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 8
- 239000004411 aluminium Substances 0.000 description 8
- 125000001424 substituent group Chemical group 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 239000007983 Tris buffer Substances 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 7
- 229920001519 homopolymer Polymers 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 125000005842 heteroatom Chemical group 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 230000035882 stress Effects 0.000 description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 5
- 229920000034 Plastomer Polymers 0.000 description 5
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
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- 239000004215 Carbon black (E152) Substances 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
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- 125000006736 (C6-C20) aryl group Chemical group 0.000 description 3
- PBKONEOXTCPAFI-UHFFFAOYSA-N 1,2,4-trichlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1 PBKONEOXTCPAFI-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
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- 230000000052 comparative effect Effects 0.000 description 3
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- 150000001993 dienes Chemical class 0.000 description 3
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical group C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 125000005843 halogen group Chemical group 0.000 description 3
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- 239000012429 reaction media Substances 0.000 description 3
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- AQZWEFBJYQSQEH-UHFFFAOYSA-N 2-methyloxaluminane Chemical compound C[Al]1CCCCO1 AQZWEFBJYQSQEH-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 0 CC(C1CC2*)=C(*)C(*)=C(C)C1C2[Si](*)(*)C1C2SC(*)=CC2C2C=C(*)SC12 Chemical compound CC(C1CC2*)=C(*)C(*)=C(C)C1C2[Si](*)(*)C1C2SC(*)=CC2C2C=C(*)SC12 0.000 description 2
- HNUALPPJLMYHDK-UHFFFAOYSA-N C[CH]C Chemical group C[CH]C HNUALPPJLMYHDK-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229940126062 Compound A Drugs 0.000 description 2
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000001399 aluminium compounds Chemical class 0.000 description 2
- 229940077746 antacid containing aluminium compound Drugs 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 150000001923 cyclic compounds Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical group [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000002667 nucleating agent Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
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- 239000000454 talc Substances 0.000 description 2
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- 230000007704 transition Effects 0.000 description 2
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- HKVFGFGPRISDFM-UHFFFAOYSA-N tris(2,3,3-trimethylbutyl)alumane Chemical compound CC(C)(C)C(C)C[Al](CC(C)C(C)(C)C)CC(C)C(C)(C)C HKVFGFGPRISDFM-UHFFFAOYSA-N 0.000 description 2
- SSEXLBWMXFFGTD-UHFFFAOYSA-N tris(2,3-dimethylbutyl)alumane Chemical compound CC(C)C(C)C[Al](CC(C)C(C)C)CC(C)C(C)C SSEXLBWMXFFGTD-UHFFFAOYSA-N 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- QPFMBZIOSGYJDE-ZDOIIHCHSA-N 1,1,2,2-tetrachloroethane Chemical class Cl[13CH](Cl)[13CH](Cl)Cl QPFMBZIOSGYJDE-ZDOIIHCHSA-N 0.000 description 1
- FLTNWMFPQFIBDA-UHFFFAOYSA-N 1,2,3,4-tetrahydronaphthalene Chemical compound C1=CC=C2CCCCC2=C1.C1=CC=C2CCCCC2=C1 FLTNWMFPQFIBDA-UHFFFAOYSA-N 0.000 description 1
- PRBHEGAFLDMLAL-UHFFFAOYSA-N 1,5-Hexadiene Natural products CC=CCC=C PRBHEGAFLDMLAL-UHFFFAOYSA-N 0.000 description 1
- UHWUPRFSWYYSEB-UHFFFAOYSA-N 1-[bis(2-trimethylsilylpropyl)alumanyl]propan-2-yl-trimethylsilane Chemical compound C[Si](C)(C)C(C)C[Al](CC(C)[Si](C)(C)C)CC(C)[Si](C)(C)C UHWUPRFSWYYSEB-UHFFFAOYSA-N 0.000 description 1
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 1
- 125000003890 2-phenylbutyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(C([H])([H])*)C([H])([H])C([H])([H])[H] 0.000 description 1
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- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
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- 238000002441 X-ray diffraction Methods 0.000 description 1
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- 125000001931 aliphatic group Chemical group 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
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- 125000002827 triflate group Chemical group FC(S(=O)(=O)O*)(F)F 0.000 description 1
- INNUJJCMHIUXQQ-UHFFFAOYSA-N tris(2,2-diphenylethyl)alumane Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)C[Al](CC(C=1C=CC=CC=1)C=1C=CC=CC=1)CC(C=1C=CC=CC=1)C1=CC=CC=C1 INNUJJCMHIUXQQ-UHFFFAOYSA-N 0.000 description 1
- RXTYCDSTJDDMRJ-UHFFFAOYSA-N tris(2,3,3-trimethylpentyl)alumane Chemical compound CCC(C)(C)C(C)C[Al](CC(C)C(C)(C)CC)CC(C)C(C)(C)CC RXTYCDSTJDDMRJ-UHFFFAOYSA-N 0.000 description 1
- WRZKUDJYHWOMSC-UHFFFAOYSA-N tris(2,3-diethylpentyl)alumane Chemical compound CCC(CC)C(CC)C[Al](CC(CC)C(CC)CC)CC(CC)C(CC)CC WRZKUDJYHWOMSC-UHFFFAOYSA-N 0.000 description 1
- IBAAQZWRANCYLH-UHFFFAOYSA-N tris(2,3-dimethyl-3-phenylbutyl)alumane Chemical compound C=1C=CC=CC=1C(C)(C)C(C)C[Al](CC(C)C(C)(C)C=1C=CC=CC=1)CC(C)C(C)(C)C1=CC=CC=C1 IBAAQZWRANCYLH-UHFFFAOYSA-N 0.000 description 1
- WUGMXCQCNQHHDC-UHFFFAOYSA-N tris(2,3-dimethylheptyl)alumane Chemical compound CCCCC(C)C(C)C[Al](CC(C)C(C)CCCC)CC(C)C(C)CCCC WUGMXCQCNQHHDC-UHFFFAOYSA-N 0.000 description 1
- VGONMIOMLRCRSS-UHFFFAOYSA-N tris(2,3-dimethylhexyl)alumane Chemical compound CCCC(C)C(C)C[Al](CC(C)C(C)CCC)CC(C)C(C)CCC VGONMIOMLRCRSS-UHFFFAOYSA-N 0.000 description 1
- BENYMJNPVWYYES-UHFFFAOYSA-N tris(2,3-dimethylpentyl)alumane Chemical compound CCC(C)C(C)C[Al](CC(C)C(C)CC)CC(C)C(C)CC BENYMJNPVWYYES-UHFFFAOYSA-N 0.000 description 1
- XZIKSWMNFLIAQP-UHFFFAOYSA-N tris(2,4,4-trimethylpentyl)alumane Chemical compound CC(C)(C)CC(C)C[Al](CC(C)CC(C)(C)C)CC(C)CC(C)(C)C XZIKSWMNFLIAQP-UHFFFAOYSA-N 0.000 description 1
- WXUZTGFTOYFKIR-UHFFFAOYSA-N tris(2-ethyl-3,3-dimethylbutyl)alumane Chemical compound CCC(C(C)(C)C)C[Al](CC(CC)C(C)(C)C)CC(CC)C(C)(C)C WXUZTGFTOYFKIR-UHFFFAOYSA-N 0.000 description 1
- IDEILWZYRDEEGQ-UHFFFAOYSA-N tris(2-ethyl-3,3-dimethylpentyl)alumane Chemical compound CCC(C)(C)C(CC)C[Al](CC(CC)C(C)(C)CC)CC(CC)C(C)(C)CC IDEILWZYRDEEGQ-UHFFFAOYSA-N 0.000 description 1
- FEJNOSHLGDRZDX-UHFFFAOYSA-N tris(2-ethyl-3-methylbutyl)alumane Chemical compound CCC(C(C)C)C[Al](CC(CC)C(C)C)CC(CC)C(C)C FEJNOSHLGDRZDX-UHFFFAOYSA-N 0.000 description 1
- JAFSWBPCWFKGBY-UHFFFAOYSA-N tris(2-ethyl-3-methylpentyl)alumane Chemical compound CCC(C)C(CC)C[Al](CC(CC)C(C)CC)CC(CC)C(C)CC JAFSWBPCWFKGBY-UHFFFAOYSA-N 0.000 description 1
- ZMFQGYOUXPHLOA-UHFFFAOYSA-N tris(2-methyl-3-phenylbutyl)alumane Chemical compound C=1C=CC=CC=1C(C)C(C)C[Al](CC(C)C(C)C=1C=CC=CC=1)CC(C)C(C)C1=CC=CC=C1 ZMFQGYOUXPHLOA-UHFFFAOYSA-N 0.000 description 1
- JHKHTIUZAWUYBF-UHFFFAOYSA-N tris(2-methyl-3-propylhexyl)alumane Chemical compound CCCC(CCC)C(C)C[Al](CC(C)C(CCC)CCC)CC(C)C(CCC)CCC JHKHTIUZAWUYBF-UHFFFAOYSA-N 0.000 description 1
- VFPYUYMFBROVAS-UHFFFAOYSA-N tris(2-phenylpentyl)alumane Chemical compound C=1C=CC=CC=1C(CCC)C[Al](CC(CCC)C=1C=CC=CC=1)CC(CCC)C1=CC=CC=C1 VFPYUYMFBROVAS-UHFFFAOYSA-N 0.000 description 1
- VJEKKLDXDUTOAK-UHFFFAOYSA-N tris(2-phenylpropyl)alumane Chemical compound C=1C=CC=CC=1C(C)C[Al](CC(C)C=1C=CC=CC=1)CC(C)C1=CC=CC=C1 VJEKKLDXDUTOAK-UHFFFAOYSA-N 0.000 description 1
- YEGQCMGIQOIQNF-UHFFFAOYSA-N tris(3,3-dimethyl-2-propan-2-ylbutyl)alumane Chemical compound CC(C)C(C(C)(C)C)C[Al](CC(C(C)C)C(C)(C)C)CC(C(C)C)C(C)(C)C YEGQCMGIQOIQNF-UHFFFAOYSA-N 0.000 description 1
- NWZXKGHKCZTEHC-UHFFFAOYSA-N tris(3-ethyl-2-methylheptyl)alumane Chemical compound CCCCC(CC)C(C)C[Al](CC(C)C(CC)CCCC)CC(C)C(CC)CCCC NWZXKGHKCZTEHC-UHFFFAOYSA-N 0.000 description 1
- PZHDFOMROGHRBA-UHFFFAOYSA-N tris(3-ethyl-2-methylhexyl)alumane Chemical compound CCCC(CC)C(C)C[Al](CC(C)C(CC)CCC)CC(C)C(CC)CCC PZHDFOMROGHRBA-UHFFFAOYSA-N 0.000 description 1
- AMPVHNIRJXJXEN-UHFFFAOYSA-N tris(3-ethyl-2-methylpentyl)alumane Chemical compound CCC(CC)C(C)C[Al](CC(C)C(CC)CC)CC(C)C(CC)CC AMPVHNIRJXJXEN-UHFFFAOYSA-N 0.000 description 1
- QQRJKBIMCFKYOT-UHFFFAOYSA-N tris(3-methyl-2-phenylbutyl)alumane Chemical compound C=1C=CC=CC=1C(C(C)C)C[Al](CC(C(C)C)C=1C=CC=CC=1)CC(C(C)C)C1=CC=CC=C1 QQRJKBIMCFKYOT-UHFFFAOYSA-N 0.000 description 1
- VIDMRZMJMLMHSP-UHFFFAOYSA-N tris(3-methyl-2-propan-2-ylbutyl)alumane Chemical compound CC(C)C(C(C)C)C[Al](CC(C(C)C)C(C)C)CC(C(C)C)C(C)C VIDMRZMJMLMHSP-UHFFFAOYSA-N 0.000 description 1
- KFXLMHSDDUANFS-UHFFFAOYSA-N tris[2-(2,3,4,5,6-pentafluorophenyl)propyl]alumane Chemical compound FC=1C(F)=C(F)C(F)=C(F)C=1C(C)C[Al](CC(C)C=1C(=C(F)C(F)=C(F)C=1F)F)CC(C)C1=C(F)C(F)=C(F)C(F)=C1F KFXLMHSDDUANFS-UHFFFAOYSA-N 0.000 description 1
- ZCLZBCAKWSHDJL-UHFFFAOYSA-N tris[2-(4-fluorophenyl)propyl]alumane Chemical compound C=1C=C(F)C=CC=1C(C)C[Al](CC(C)C=1C=CC(F)=CC=1)CC(C)C1=CC=C(F)C=C1 ZCLZBCAKWSHDJL-UHFFFAOYSA-N 0.000 description 1
- AETKXSGBGBBCGA-UHFFFAOYSA-N tris[3-methyl-2-(2-methylpropyl)pentyl]alumane Chemical compound CCC(C)C(CC(C)C)C[Al](CC(CC(C)C)C(C)CC)CC(CC(C)C)C(C)CC AETKXSGBGBBCGA-UHFFFAOYSA-N 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 238000001969 wideband alternating-phase low-power technique for zero residual splitting Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Definitions
- the present invention relates to polyolefin compositions having excellent whitening resistance characteristics and impact resistance.
- EP-A-O 086 300 relates to so called "impact polypropylene compositions" and discloses polypropylene block copolymers having improved impact resistance and high stiffness.
- an heterophasic propylene composition with improved balance of impact stiffness and stress whitening resistance comprising a crystalline propylene polymer matrix (i) an elastomeric component (ii) and an ethylene copolymer plastomer.(iii).
- the elastomeric component (ii) is a propylene/ethylene copolymer (C3/C2) and the ethylene copolymer plastomer (iii) is a metallocene catalyst derived plastomer (Exact), in the examples.
- the international patent application WO2006/067023 Al discloses polyolef ⁇ n compositions obtained by sequential polymerization having: a) 50-77% of a crystalline propylene polymer having high isotacticity; b) 13-28% of an elastomeric copolymer of ethylene and propylene, partially soluble in xylene at ambient temperature; and c) 10-22% of polyethylene having an intrinsic viscosity value ranging from 1 to 3 dl/g and optionally containing recurring units deriving from propylene in amounts up to lower than 10% (HDPE).
- HDPE high density polyethylene
- compositions due to the presence of component c), are endowed with relatively low stiffness, high impact resistance and particularly improved whitening resistance with respect to heterophasic compositions comprising only component (a) and (b).
- Components (al) (a2) and (b) can be blended together. Preferred are the polyolef ⁇ n compositions wherein component (al) and (a2) are obtained by sequential polymerization (reactor blend).
- copolymer refers to both polymers with two different recurring units and polymer with more than two different recurring units in the chain, such as terpolymers.
- butene-1 (co)polymer refers to butene-1 homopolymers, copolymers and compositions thereof, having from elastomeric to plastomeric behaviour and generically also referred to as "plastomers”.
- the "butene-1 (co)polymer” component (b) exhibit low flexural modulus and preferably low crystallinity (less than 40% measured via X-ray, preferably less than 30).
- a preferred embodiment is a polyolefm composition
- a polyolefm composition comprising, in percentage by weight based on the weight sum of the component (a) and (b): a) 30-97 %, preferably of 70-95%, more preferably for rigid applications 85-93%, of a heterophasic composition comprising in percentage by weight based on the weight sum of the components (al) and (a2): al) 55-80% of a propylene homopolymer or copolymer containing up to 15% of ethylene and/or C4-C10 ⁇ -olefm(s), having an isotactic index over
- a lower amount of component (a) of from 30-70% wt based on the weight sum of the component (a) and (b) is also valuable and preferred for soft applications.
- the elastomeric ethylene copolymer component (a2) can further comprise a diene.
- the diene is typically in amounts ranging from 0.5 to 10 wt% with respect to the weight of copolymer (a2).
- the diene can be conjugated or not and is selected from butadiene, 1,4-hexadiene, 1,5-hexadiene, and ethylidene-norbornene-1, for example.
- heterophasic composition component (a) wherein the crystalline component (al) exhibit a value of MFR (230 0 C, 2.16 kg) of at least 25 g/10 min; and the heterophasic composition (al) +(a2) have:
- Examples of said C4-C10 ⁇ -olefins are 1-butene, 1-pentene, 1-hexene, 4-methyl-l-pentene and 1-octene. Particularly preferred is 1-butene.
- Component (al) and (a2) can be prepared separately or as above said preferably by a sequential polymerization.
- the polymerization which can be continuous or batch, is carried out following known techniques and operating in liquid phase, in the presence or not of inert diluent, or in gas phase, or by mixed liquid-gas techniques.
- Preferably both components (al) and (a2) are prepared in gas phase.
- the component (b) is a butene-1 (co) polymer typically exhibiting from elastomeric to plastomeric behaviour and can be a homopolymer or a copolymer of butene-1 with one or more ⁇ -olefms, or a composition of copolymers of butene-1 with other alfa-olefins.
- ⁇ -olefms which are or may be present as comonomers in the component (b) of the compositions of the invention, are ethylene, propylene, 1-pentene, 1-hexene, 4-methyl-l- pentene and 1-octene.
- Particularly preferred as comonomers are propylene and ethylene.
- the Component (b) is preferably selected from the group consisting of: (bl) a butene-1 homopolymer or copolymer of butene-1 with at least another ⁇ -olefm, preferably with propylene as comonomer, having content of butene-1 units in the form of isotactic pentads (mmmm%) from 25 to 55%; intrinsic viscosity [ ⁇ ] measured in tetraline at 135°C from 1 to 3dL/g; content of xylene insoluble fraction at 0 0 C from 3 to 60%;
- the butene-1 /ethylene copolymer (b2) a butene-1 /ethylene copolymer having a content of butene-1 units in form of isotactic pentads (mmmm%) equal to or higher than 96%, and a total content of ethylene units in the range of 10-25% mol corresponding to about 5-15 %wt.
- the butene-1 /ethylene copolymer (b2) can be alternatively and advantageously a composition consisting of: a copolymer having less than 10% mol of ethylene as a comonomer for example 1 to 9% mol, and another copolymer having a content of ethylene as comonomer higher than 10% mol and for example in the range 15-40%mol.
- the highly modified component has typically an elastomeric behaviour and the component (b2) can be consequently an heterophasic composition.
- component (b3) a butene-1 /ethylene copolymer or a butene-1 /ethylene/propylene terpolymer having the following properties:
- TmII no melting point
- Component (b3) can have a measurable melting enthalpy after aging. Particularly, measured after 10 days of aging at room temperature, the melting enthalpy of (b3) can be of less than 25 J/g, preferably of from 4 to 20 J/g.
- the butene-1 (co)polymer (bl) of the present invention can be prepared by polymerization of the monomers in the presence of a low stereospecif ⁇ city Ziegler-Natta catalyst comprising (A) a solid component comprising a Ti compound and an internal electron-donor compound supported on MgC12; (B) an alkylaluminum compound and, optionally, (C) an external electron-donor compound.
- a low stereospecif ⁇ city Ziegler-Natta catalyst comprising (A) a solid component comprising a Ti compound and an internal electron-donor compound supported on MgC12; (B) an alkylaluminum compound and, optionally, (C) an external electron-donor compound.
- the external electron donor compound is not used in order not to increase the stereoregulating capability of the catalyst.
- the external donor In cases in which the external donor is used, its amount and modalities of use should be such as not to generate a too high amount of highly stereoregular polymer such as it is described in the International application WO2006/042815 Al.
- the butene-1 copolymers thus obtained typically have a content of isotactic pentads (mmmm%) from 25 to 56%.
- the Butene-1 (co)polymers (b2) can be prepared by polymerization of the monomer in presence of a stereospecific Ziegler Natta catalyst wherein the external electron donor compound (C) is chosen and used in amounts according to the process described in the international application WO2004/048424 Al, thus obtaining a content of butene-1 units in the form of isotactic pentads (mmmm%) typically higher than 96% even at a high content of comonomer (ethylene) such as higher than 10% by moles.
- the content of butene-1 units in form of isotactic pentads is herewith referring to the known definition of pentad tacticity for polybutene-1 homo and co-polymers found e.g.
- the % value of pentad tacticity is the percentage of stereoregular pentads (isotactic pentad) as calculated from the relevant pentad signals (peak areas) in the NMR region of branched methylene carbons (around 27.73 ppm assigned to the BBBBB isotactic sequence), with due consideration of the superposition between stereoirregular pentads and of those signals, falling in the same region, due to the alfa-olef ⁇ n comonomer (e.g propylene derived units when present).
- the polymerization process both for butene-1 (co)polymers (bl) and (b2) can be carried out according to known techniques, for example slurry polymerization using as diluent a liquid inert hydrocarbon, or solution polymerization using for example the liquid butene-1 as a reaction medium. Moreover, it may also be possible to carry out the polymerization process in the gas- phase, operating in one or more fluidized or mechanically agitated bed reactors. The polymerization carried out in the liquid butene-1 as a reaction medium is highly preferred.
- the polymerization is generally carried out at temperature of from 20 to 120 0 C, preferably of from 40 to 90 0 C.
- the polymerization can be carried out in one or more reactors that can work under same or different reaction conditions such as concentration of molecular weight regulator, comonomer concentration, external electron donor concentration, temperature, pressure etc.
- the butene-1 copolymer (b3) can be obtained by contacting under polymerization conditions butene-1 and ethylene and eventually propylene in the presence of a catalyst system obtainable by contacting:
- stereorigid metallocene compound (A) belongs to the following formula
- M is an atom of a transition metal selected from those belonging to group 4; preferably M is zirconium;
- X is a hydrogen atom, a halogen atom, a R, OR, OR'O, OSO2CF3, OCOR, SR, NR2 or PR2 group wherein R is a linear or branched, saturated or unsaturated Cl-C20-alkyl, C3-C20-cycloalkyl, C6-C20-aryl, C7-C20-alkylaryl or C7-C20-arylalkyl radical, optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; and R' is a Cl-C20-alkylidene, C6-C20-arylidene, C7-C20-alkylarylidene, or C7-C20-arylalkylidene radical; preferably X is a hydrogen atom, a halogen atom, a OR'O or R group; more preferably X is chlorine or a methyl radical;
- Rl, R2, R5, R6, R7, R8 and R9, equal to or different from each other, are hydrogen atoms, or linear or branched, saturated or unsaturated Cl-C20-alkyl, C3-C20-cycloalkyl, C6-C20-aryl, C7-C20-alkylaryl or C7-C20-arylalkyl radicals, optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; or R5 and R6, and/or R8 and R9 can optionally form a saturated or unsaturated, 5 or 6 membered rings, said ring can bear C1-C20 alkyl radicals as substituents; with the proviso that at least one of R6 or R7 is a linear or branched, saturated or unsaturated Cl-C20-alkyl radical, optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; preferably a Cl-ClO-alkyl radical; preferably R
- R8 and R9 are preferably Cl-ClO alkyl or C6-C20 aryl radicals; more preferably they are methyl radicals;
- R5 is preferably a hydrogen atom or a methyl radical; or can be joined with R6 to form a saturated or unsaturated, 5 or 6 membered rings, said ring can bear C1-C20 alkyl radicals as substituents;
- R6 is preferably a hydrogen atom or a methyl, ethyl or isopropyl radical; or it can be joined with R5 to form a saturated or unsaturated, 5 or 6 membered rings as described above;
- R7 is preferably a linear or branched, saturated or unsaturated Cl-C20-alkyl radical, optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; preferably a Cl-C10-alkyl radical; more preferably R7 is a methyl or ethyl radical; otherwise when R6 is different from a hydrogen atom, R7 is preferably a hydrogen atom R3 and R4, equal to or different from each other, are linear or branched, saturated or unsaturated Cl-C20-alkyl radicals, optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; preferably R3 and R4 equal to or different from each other are Cl-ClO-alkyl radicals; more preferably R3 is a methyl, or ethyl radical; and R4 is a methyl, ethyl or isopropyl radical;
- the compounds of formula (I) have formula (Ia) or (Ib):
- R3 is a linear or branched, saturated or unsaturated Cl-C20-alkyl radical, optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; preferably R3 is a Cl-C10-alkyl radical; more preferably R3 is a methyl, or ethyl radical.
- Alumoxanes used as component (B) can be obtained by reacting water with an organo- aluminium compound of formula HJA1U3-J or HjA12U6-j, where U substituents, same or different, are hydrogen atoms, halogen atoms, Cl-C20-alkyl, C3-C20-cyclalkyl, C6-C20- aryl, C7-C20-alkylaryl or or C7-C20-arylalkyl radical, optionally containing silicon or germanium atoms with the proviso that at least one U is different from halogen, and j ranges from 0 to 1, being also a non- integer number.
- U substituents same or different, are hydrogen atoms, halogen atoms, Cl-C20-alkyl, C3-C20-cyclalkyl, C6-C20- aryl, C7-C20-alkylaryl or or C7-C20-arylalkyl radical, optionally containing silicon
- the molar ratio of Al/water is preferably comprised between 1 : 1 and 100:1.
- the molar ratio between aluminium and the metal of the metallocene generally is comprised between about 10:1 and about 20000:1, and more preferably between about 100:1 and about 5000:1.
- the alumoxanes used in the catalyst according to the invention are considered to be linear, branched or cyclic compounds containing at least one group of the type: U
- nl is O or an integer from 1 to 40 and the substituents U are defined as above, or alumoxanes of the formula: U (Al — O)n 2 can be used in the case of cyclic compounds, wherein n2 is an integer from 2 to 40 and the U substituents are defined as above.
- alumoxanes suitable for use according to the present invention are methylalumoxane (MAO), tetra-(isobutyl)alumoxane (TIBAO), tetra-(2,4,4-trimethyl-pentyl)alumoxane (TIOAO), tetra-(2,3-dimethylbutyl)alumoxane (TDMBAO) and tetra-(2,3,3-trimethylbutyl)alumoxane (TTMBAO).
- MAO methylalumoxane
- TIBAO tetra-(isobutyl)alumoxane
- TIOAO tetra-(2,4,4-trimethyl-pentyl)alumoxane
- TDMBAO tetra-(2,3-dimethylbutyl)alumoxane
- TTMBAO tetra-(2,3,3-trimethylbutyl)alumox
- Non-limiting examples of aluminium compounds according to WO 99/21899 and WOO 1/21674 are: tris(2,3,3-trimethyl-butyl)aluminium, tris(2,3-dimethyl-hexyl)aluminium, tris(2,3-dimethyl-butyl)aluminium, tris(2,3-dimethyl-pentyl)aluminium, tris(2,3-dimethyl- heptyl)aluminium, tris(2-methyl-3 -ethyl-pentyl)aluminium, tris(2-methyl-3 -ethyl- hexyl)aluminium, tris(2-methyl-3-ethyl-heptyl)aluminium, tris(2-methyl-3 -propyl- hexyl)aluminium, tris(2-ethyl-3-methyl-butyl)aluminium, tris(2-ethyl-3 -methyl- pentyl)
- TMA trimethylaluminium
- TIBAL triisobutylaluminium
- TIOA tris(2,4,4-trimethyl-pentyl)aluminium
- TDMBA tris(2,3- dimethylbutyl)aluminium
- TTMBA tris(2,3,3-trimethylbutyl)aluminium
- Non-limiting examples of compounds able to form an alkylmetallocene cation are compounds of formula D+E-, wherein D+ is a Br ⁇ nsted acid, able to donate a proton and to react irreversibly with a substituent X of the metallocene of formula (I) and E- is a compatible anion, which is able to stabilize the active catalytic species originating from the reaction of the two compounds, and which is sufficiently labile to be able to be removed by an olefmic monomer.
- the anion E- comprises of one or more boron atoms.
- the anion E- is an anion of the formula BAr4(-), wherein the substituents Ar which can be identical or different are aryl radicals such as phenyl, pentafluorophenyl or bis(trifluoromethyl)phenyl. Tetrakis-pentafluorophenyl borate is particularly preferred examples of these compounds are described in WO 91/02012. Moreover, compounds of the formula BAr3 can conveniently be used. Compounds of this type are described, for example, in the published International patent application WO 92/00333.
- compounds able to form an alkylmetallocene cation are compounds of formula BAr3P wherein P is a substituted or unsubstituted pyrrol radicals. . These compounds are described in WOO 1/62764. Other examples of cocatalyst can be found in EP-A-O 775 707 and DE 19917985.
- Compounds containing boron atoms can be conveniently supported according to the description of DE-A- 19962814 and DE-A- 19962910. All these compounds containing boron atoms can be used in a molar ratio between boron and the metal of the metallocene comprised between about 1 :1 and about 10:1; preferably 1 :1 and 2.1; more preferably about 1 :1.
- Non limiting examples of compounds of formula D+E- are: Triethylammoniumtetra(phenyl)borate,
- Organic aluminum compounds used as compound C) are those of formula HJA1U3-J or HjA12U6-j described above.
- the catalysts of the present invention can also be supported on an inert carrier. This is achieved by depositing the metallocene compound A) or the product of the reaction thereof with the component B), or the component B) and then the metallocene compound A) on an inert support such as, for example, silica, alumina, Al-Si, Al-Mg mixed oxides, magnesium halides, styrene/divinylbenzene copolymers, polyethylene or polypropylene.
- an inert support such as, for example, silica, alumina, Al-Si, Al-Mg mixed oxides, magnesium halides, styrene/divinylbenzene copolymers, polyethylene or polypropylene.
- the supportation process is carried out in an inert solvent such as hydrocarbon for example toluene, hexane, pentane or propane and at a temperature ranging from 0 0 C to 100 0 C, preferably the process is carried out at a temperature ranging from 25°C to 90 0 C or the process is carried out at room temperature.
- an inert solvent such as hydrocarbon for example toluene, hexane, pentane or propane
- a suitable class of supports which can be used is that constituted by porous organic supports functionalized with groups having active hydrogen atoms. Particularly suitable are those in which the organic support is a partially crosslinked styrene polymer. Supports of this type are described in European application EP-A-O 633 272.
- Another class of inert supports particularly suitable for use according to the invention is that of polyolefm porous prepolymers, particularly polyethylene.
- a further suitable class of inert supports for use according to the invention is that of porous magnesium halides such as those described in International application WO 95/32995.
- the process for the polymerization of butene-1 and eventually ethylene and/or propylene according to the invention can be carried out in the liquid phase in the presence or absence of an inert hydrocarbon solvent, such as in slurry, or in the gas phase.
- the hydrocarbon solvent can either be aromatic such as toluene, or aliphatic such as propane, hexane, heptane, isobutane or cyclohexane.
- the copolymers (b3) of the present invention are obtained by a solution process, i.e. a process carried out in liquid phase wherein the polymer is completely or partially soluble in the reaction medium.
- the polymerization temperature is generally comprised between -100 0 C and +200 0 C preferably comprised between 40° and 90 0 C, more preferably between 50 0 C and 80 0 C.
- the polymerization pressure is generally comprised between 0,5 and 100 bar.
- the polyolefm composition according to the present invention can be prepared according to conventional methods, for examples, mixing component (A), component (B) or the concentrate thereof and well known additives in a blender, such as a Henschel or Banbury mixer, to uniformly disperse the said components, at a temperature equal to or higher than the polymer softening temperature, then extruding the composition and pelletizing.
- a blender such as a Henschel or Banbury mixer
- additives, fillers and pigments commonly used in olefin polymers, may be added, such as nucleating agents, extension oils, mineral fillers, and other organic and inorganic pigments.
- inorganic fillers such as talc, calcium carbonate and mineral fillers, also brings about an improvement to some mechanical properties, such as flexural modulus and HDT. Talc can also have a nucleating effect.
- the nucleating agents are preferably added to the compositions of the present invention in quantities ranging from 0.05 to 2% by weight, more preferably from 0.1 to 1% by weight with respect to the total weight.
- the amount of comonomers was calculated from 13 C-NMR spectra of the copolymers of the examples. Measurements were performed on a polymer solution (8-12 % by weight) in dideuterated 1,1,2,2-tetrachloro- ethane at 120 0 C. The 13 C NMR spectra were acquired on a Bruker AV-600 spectrometer operating at 150.91 MHz in the Fourier transform mode at 120 0 C using a 90° pulse, 15 seconds of delay between pulses and CPD (WALTZ 16) to remove 1 H- 13 C coupling. About 1500 transients were stored in 32K data points using a spectral window of 60 ppm (0-60 ppm).
- PE 100 (I 5 + I 6 )/ ⁇
- the molar content is obtained from diads using the following relations:
- I 1 , I 2 , I 3 , I5, I ⁇ , I9, I ⁇ , Iio, I 14 , Ii5, Ii9 are integrals of the peaks in the 13 C NMR spectrum (peak of EEE sequence at 29.9 ppm as reference).
- the assignments of these peaks are made according to J.C. Randal, Macromol. Chem Phys., C29, 201 (1989), M. Kakugo, Y. Naito, K. Mizunuma and T. Miyatake, Macromolecules, 15, 1150, (1982), and H.N. Cheng, Journal of Polymer Science, Polymer Physics Edition, 21, 57 (1983). They are collected in Table A (nomenclature according to CJ. Carman, R.A. Harrington and CE. Wilkes, Macromolecules, 10, 536 (1977)).
- the melting enthalpy after 10 days was measured as follows by using the Differential
- a weighted sample (5-10 mg) obtained from the polymerization was sealed into aluminum pans and heated at 200 0 C with a scanning speed corresponding to 20°C/minute. The sample was kept at 200 0 C for 5 minutes to allow a complete melting of all the crystallites. The sample was then stored for 10 days at room temperature. After 10 days the sample was subjected to DSC, it was cooled to -20 0 C, and then it was heated at 200 0 C with a scanning speed corresponding to 10°C/min. In this heating run, the peak temperature was taken as the melting temperature (Tm), substantially corresponding to (TmII), and the area as global melting enthalpy after 10 days ( ⁇ Hf), when this was the only peak observed. The melting temperature of crystalline form I (TmI) can also be measured in this condition when present either as a shoulder peak in the (Tm) peak or as a distinct peak at higher temperatures.
- the 13 C NMR spectra were acquired on a Bruker DPX-400 (100.61 Mhz, 90° pulse, 12s delay between pulses). About 3000 transients were stored for each spectrum; mmmm pentad peak (27.73 ppm) was used as reference.
- Standard specimens are cut from strands extruded from a grader (MFR measurement).
- the polybutene-1 specimen is putted in an autoclave at 2000 bar for lOmin at a room temperature in order to accelerate the transformation phase of the polybutene. After this the specimen is inserted in the gradient column where density is measured according to ISO 1183.
- Tensile properties (Tensile Stress at Break, Elongation at Break, Stress at Yield, Elongation at Yield): According to ISO 527-1,-2.
- Plaques for D/B measurement having dimensions of 127x127x1.5 mm were prepared with an injection press Negri BossiTM type (NB 90) with a clamping force of 90 tons.
- the mould is a rectangular plaque (127x127x1.5 mm).
- Ductile/Brittle transition temperature (D/B) : determined according to the method specified below.
- the bi-axial impact resistance was determined through impact with an automatic, computerised striking hammer.
- the circular test specimens were obtained from plaques, prepared as described above, by cutting with circular hand punch (38 mm diameter). They were conditioned for at least 12 hours at 23°C and 50 RH and then placed in a thermostatic bath at testing temperature for 1 hour.
- D/B transition temperature means the temperature at which 50% of the samples undergoes fragile break when submitted to the said impact test.
- the plaques were conditioned for 12 to 48 hours at relative humidity of 50 ⁇ 5% and temperature of 23 ⁇ 1° C.
- the instrument used for the test was a Gardner photometer with Haze-meter UX-IO equipped with a G. E. 1209 lamp and filter C.
- the instrument calibration was made by carrying out a measurement in the absence of the sample (0% Haze) and a measurement with intercepted light beam (100% Haze).
- the haze measurement was carried out on five plaques.
- the value of the injection pressure should be sufficient to completely fill the mould in the above mentioned indicated time span.
- the stress-whitening resistance is expressed as the diameter of the whitened area (average value over 10 specimens tested for each dropping height). A value 0 means no whitening detectable even if a deformation of the surface caused by the strike can be observed. A deformation without whitening is normally observed at least at the highest falling height of 76 cm. Both the height and the width (diameter) of the whitened area are recorded and reported in table 2.
- compositions according to the present invention exhibit excellent whitening resistance (no blush), good Izod impact resistance and relatively low stiffness together with good optical properties (low haze).
- compositions according to the invention suitable for application in a variety of fields from the automotive household appliance and containers and film for packaging. Particularly when transparency is needed, formed articles such as containers, battery casings and household can be produced advantageously with the composition of the invention by injection molding. Bottles impact resistant at low temperature and collapsible bottles can be produced by blow molding; and blisters and containers by thermo forming.
- PBl is a butene-1 homopolymer and PB2 is a butene-1 /propylene copolymer.
- PBl and PB2 are (bl) components prepared according to the process described in the International application WO2006/042815 Al.
- PB3 is a butene-1 /ethylene copolymer composition (b2) obtained according to the process described in the international application WO2004/048424 by sequential copolymerization carried out in two liquid-phase stirred reactors connected in series in which liquid butene-1 constituted the liquid medium.
- the content of the first reactor was transferred into the second reactor where the polymerization continued under the same conditions with the only difference that the ethylene feed was discontinued.
- the polymerization was stopped after 70 minutes and the final copolymer was characterized.
- On the basis of the polymerization activity about 70% of the total copolymer was produced in the first polymerization step and showed an ethylene content of about 10%wt.
- the remaining 30% produced in the second reactor had a calculated ethylene content of about 0.6%wt.
- the ethylene content of the final product is about 7.1%wt.
- PB4 is a metallocene butene-1 (co)polymer (b3) prepared according to the process described above.
- Component (a) and (b) as indicated in table 2 are blended in an extruder.
- the polymer particles are extruded under nitrogen atmosphere in a twin screw extruder, at a rotation speed of 250 rpm and a melt temperature of 200-250° C.
- the same Component (a) used in examples 1-4 is blended with a commercial HDPE having MFR (190 °C; 2,16 Kg ) of 8 g/10min, intrinsic viscosity of 1.2 dl/g and density of 0.963 g/cm 3 .
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
Description
Claims
Priority Applications (5)
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JP2011527346A JP5383808B2 (en) | 2008-09-24 | 2009-09-21 | Polyolefin composition exhibiting good whitening resistance |
EP09783230A EP2340279B1 (en) | 2008-09-24 | 2009-09-21 | Polyolefin compositions having good resistance at whitening |
CN2009801372901A CN102165004B (en) | 2008-09-24 | 2009-09-21 | Polyolefin compositions having good resistance at whitening |
BRPI0918979-3A BRPI0918979B1 (en) | 2008-09-24 | 2009-09-21 | POLYLEPHINE COMPOSITIONS WITH GOOD WHITE RESISTANCE |
US13/063,357 US20110190450A1 (en) | 2008-09-24 | 2009-09-21 | Polyolefin Compositions Having Good Resistance at Whitening |
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US61/195,116 | 2008-10-03 |
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Cited By (9)
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WO2011036077A1 (en) * | 2009-09-24 | 2011-03-31 | Basell Poliolefine Italia S.R.L. | Heat-sealable polyolefin films |
WO2011061087A1 (en) * | 2009-11-17 | 2011-05-26 | Basell Poliolefine Italia S.R.L. | Soft polyolefin compositions with improved processability |
WO2011064131A1 (en) * | 2009-11-24 | 2011-06-03 | Basell Poliolefine Italia S.R.L. | Polyolefin compositions having improved sealability |
WO2012000884A1 (en) * | 2010-06-30 | 2012-01-05 | Basell Poliolefine Italia Srl | Cross-linked polyolefin composition |
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US8779063B2 (en) | 2010-06-30 | 2014-07-15 | Basell Poliolefine Italia S.R.L. | Cross-linked polyolefin composition |
US9115279B2 (en) | 2013-03-15 | 2015-08-25 | Asahi Kasei Plastics North America, Inc. | Polypropylene compounds with high impact performance and improved stress whitening resistance |
CN107109001A (en) * | 2014-12-19 | 2017-08-29 | Sabic环球技术有限责任公司 | The method for preparing heterophasic propylene copolymers |
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JP6320090B2 (en) * | 2014-03-13 | 2018-05-09 | 三井化学株式会社 | Olefin polymer composition, film comprising the same, and shrink film |
WO2017162817A1 (en) | 2016-03-24 | 2017-09-28 | Basell Poliolefine Italia S.R.L. | Soft polyolefin composition |
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CN113195621B (en) * | 2019-01-14 | 2023-06-09 | 巴塞尔聚烯烃意大利有限公司 | Polyolefin composition |
Also Published As
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CN102165004A (en) | 2011-08-24 |
JP5383808B2 (en) | 2014-01-08 |
WO2010034684A3 (en) | 2010-05-20 |
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BRPI0918979B1 (en) | 2019-05-07 |
BRPI0918979A2 (en) | 2016-07-05 |
KR101632090B1 (en) | 2016-06-20 |
EP2340279B1 (en) | 2013-03-06 |
JP2012503680A (en) | 2012-02-09 |
US20110190450A1 (en) | 2011-08-04 |
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