CA1339507C - Polymere isosequence 1-olefinique; methode de preparation - Google Patents

Polymere isosequence 1-olefinique; methode de preparation

Info

Publication number: CA1339507C
Authority: CA; Canada
Prior art keywords: group; metallocene; different; polymer; halogen atom
Prior art date: 1988-07-30
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

CA000617044A

Other languages

English (en)

Inventor

Volker Dolle

Jurgen Rohrmann

Andreas Winter

Martin Antberg

Robert Klein

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Basell Polyolefine GmbH

Original Assignee

Hoechst AG

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1988-07-30

Filing date

1996-01-30

Publication date

1997-10-21

1988-07-30 Priority claimed from DE3826075A external-priority patent/DE3826075A1/de

1996-01-30 Application filed by Hoechst AG filed Critical Hoechst AG

1997-10-21 Application granted granted Critical

1997-10-21 Publication of CA1339507C publication Critical patent/CA1339507C/fr

2009-07-28 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

229920000642 polymer Polymers 0.000 title description 36
238000000034 method Methods 0.000 title description 17
238000004519 manufacturing process Methods 0.000 title description 8
239000003054 catalyst Substances 0.000 claims abstract description 8
-1 dimethylsilyl Chemical group 0.000 claims description 17
125000004432 carbon atom Chemical group C* 0.000 claims description 14
125000005843 halogen group Chemical group 0.000 claims description 11
125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
229910052751 metal Inorganic materials 0.000 claims description 5
239000002184 metal Substances 0.000 claims description 5
YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Natural products C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 claims description 4
125000004429 atom Chemical group 0.000 claims description 4
229910052735 hafnium Inorganic materials 0.000 claims description 4
125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 claims description 4
230000000737 periodic effect Effects 0.000 claims description 4
229910052732 germanium Inorganic materials 0.000 claims description 3
229910052710 silicon Inorganic materials 0.000 claims description 3
229910052718 tin Inorganic materials 0.000 claims description 3
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 2
239000010703 silicon Substances 0.000 claims description 2
125000000008 (C1-C10) alkyl group Chemical group 0.000 claims 4
125000000027 (C1-C10) alkoxy group Chemical group 0.000 claims 2
125000006374 C2-C10 alkenyl group Chemical group 0.000 claims 2
125000000041 C6-C10 aryl group Chemical group 0.000 claims 2
238000006116 polymerization reaction Methods 0.000 description 24
239000004743 Polypropylene Substances 0.000 description 23
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
150000001875 compounds Chemical class 0.000 description 13
229910052782 aluminium Inorganic materials 0.000 description 8
235000010210 aluminium Nutrition 0.000 description 8
230000000694 effects Effects 0.000 description 8
QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 8
125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 8
239000000178 monomer Substances 0.000 description 7
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
229920001155 polypropylene Polymers 0.000 description 5
VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 4
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
239000000460 chlorine Substances 0.000 description 4
238000002425 crystallisation Methods 0.000 description 4
230000008025 crystallization Effects 0.000 description 4
229910052726 zirconium Inorganic materials 0.000 description 4
125000006273 (C1-C3) alkyl group Chemical group 0.000 description 3
LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
229910052801 chlorine Inorganic materials 0.000 description 3
VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 3
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
150000003254 radicals Chemical class 0.000 description 3
239000002904 solvent Substances 0.000 description 3
125000006656 (C2-C4) alkenyl group Chemical group 0.000 description 2
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
150000001335 aliphatic alkanes Chemical class 0.000 description 2
125000001931 aliphatic group Chemical group 0.000 description 2
AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
229910000329 aluminium sulfate Inorganic materials 0.000 description 2
229910052799 carbon Inorganic materials 0.000 description 2
238000009826 distribution Methods 0.000 description 2
230000008030 elimination Effects 0.000 description 2
238000003379 elimination reaction Methods 0.000 description 2
239000007789 gas Substances 0.000 description 2
238000005227 gel permeation chromatography Methods 0.000 description 2
229930195733 hydrocarbon Natural products 0.000 description 2
150000002430 hydrocarbons Chemical class 0.000 description 2
239000012442 inert solvent Substances 0.000 description 2
239000007788 liquid Substances 0.000 description 2
UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
230000037048 polymerization activity Effects 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
239000011541 reaction mixture Substances 0.000 description 2
239000000375 suspending agent Substances 0.000 description 2
239000000725 suspension Substances 0.000 description 2
239000010936 titanium Substances 0.000 description 2
229910052719 titanium Inorganic materials 0.000 description 2
JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical group C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
125000006274 (C1-C3)alkoxy group Chemical group 0.000 description 1
238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
GBMSQCFMQNRWAJ-UHFFFAOYSA-L C[SiH](C)[Hf](Cl)(Cl)(C1C=CC=C1)C1C=Cc2ccccc12 Chemical compound C[SiH](C)[Hf](Cl)(Cl)(C1C=CC=C1)C1C=Cc2ccccc12 GBMSQCFMQNRWAJ-UHFFFAOYSA-L 0.000 description 1
CTBFXDVGDCMIQR-UHFFFAOYSA-L C[SiH](C)[Zr](Cl)(Cl)(C1C=CC=C1)C1C=Cc2ccccc12 Chemical compound C[SiH](C)[Zr](Cl)(Cl)(C1C=CC=C1)C1C=Cc2ccccc12 CTBFXDVGDCMIQR-UHFFFAOYSA-L 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
239000004215 Carbon black (E152) Substances 0.000 description 1
KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
241000518994 Conta Species 0.000 description 1
XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
HPYIUKIBUJFXII-UHFFFAOYSA-N Cyclopentadienyl radical Chemical group [CH]1C=CC=C1 HPYIUKIBUJFXII-UHFFFAOYSA-N 0.000 description 1
PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
238000005481 NMR spectroscopy Methods 0.000 description 1
101100324954 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) oli gene Proteins 0.000 description 1
FJMJPZLXUXRLLD-UHFFFAOYSA-L [Cl-].[Cl-].C1=CC2=CC=CC=C2C1[Zr+2]([SiH](C)C)C1C2=CC=CC=C2C=C1 Chemical compound [Cl-].[Cl-].C1=CC2=CC=CC=C2C1[Zr+2]([SiH](C)C)C1C2=CC=CC=C2C=C1 FJMJPZLXUXRLLD-UHFFFAOYSA-L 0.000 description 1
239000012190 activator Substances 0.000 description 1
238000007792 addition Methods 0.000 description 1
150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
125000002877 alkyl aryl group Chemical group 0.000 description 1
125000000217 alkyl group Chemical group 0.000 description 1
DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
238000004458 analytical method Methods 0.000 description 1
150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
239000003849 aromatic solvent Substances 0.000 description 1
229920001585 atactic polymer Polymers 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
239000001273 butane Substances 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
125000001309 chloro group Chemical group Cl* 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000011651 chromium Substances 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
229910000365 copper sulfate Inorganic materials 0.000 description 1
ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
125000004122 cyclic group Chemical group 0.000 description 1
BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical class O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
239000002283 diesel fuel Substances 0.000 description 1
JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000001914 filtration Methods 0.000 description 1
239000011737 fluorine Substances 0.000 description 1
229910052731 fluorine Inorganic materials 0.000 description 1
150000002363 hafnium compounds Chemical class 0.000 description 1
229910052736 halogen Inorganic materials 0.000 description 1
150000002367 halogens Chemical group 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
229910052740 iodine Inorganic materials 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
229920001580 isotactic polymer Polymers 0.000 description 1
229920002521 macromolecule Polymers 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 1
GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
229910052750 molybdenum Inorganic materials 0.000 description 1
239000011733 molybdenum Substances 0.000 description 1
IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
229910052758 niobium Inorganic materials 0.000 description 1
239000010955 niobium Substances 0.000 description 1
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
238000006384 oligomerization reaction Methods 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
229920000098 polyolefin Polymers 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000000746 purification Methods 0.000 description 1
230000035484 reaction time Effects 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
150000003464 sulfur compounds Chemical class 0.000 description 1
229910052715 tantalum Inorganic materials 0.000 description 1
GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
230000036962 time dependent Effects 0.000 description 1
229910052723 transition metal Inorganic materials 0.000 description 1
150000003623 transition metal compounds Chemical class 0.000 description 1
150000003624 transition metals Chemical class 0.000 description 1
229910052720 vanadium Inorganic materials 0.000 description 1
GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
229940045605 vanadium Drugs 0.000 description 1
150000003755 zirconium compounds Chemical class 0.000 description 1
VPGLGRNSAYHXPY-UHFFFAOYSA-L zirconium(2+);dichloride Chemical compound Cl[Zr]Cl VPGLGRNSAYHXPY-UHFFFAOYSA-L 0.000 description 1

Landscapes

Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

CA000617044A 1988-07-30 1996-01-30 Polymere isosequence 1-olefinique; methode de preparation Expired - Fee Related CA1339507C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DEP3826075.1		1988-07-30
DE3826075A DE3826075A1 (de)	1988-07-30	1988-07-30	1-olefin-isoblockpolymer und verfahren zu seiner herstellung
CA000606882A CA1339510C (fr)	1988-07-30	1989-07-28	Polymere isosequence 1-olefinique; methode de preparation

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000606882A Division CA1339510C (fr)	1988-07-30	1989-07-28	Polymere isosequence 1-olefinique; methode de preparation

Publications (1)

Publication Number	Publication Date
CA1339507C true CA1339507C (fr)	1997-10-21

Family

ID=25672910

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000617044A Expired - Fee Related CA1339507C (fr)	1988-07-30	1996-01-30	Polymere isosequence 1-olefinique; methode de preparation

Country Status (1)

Country	Link
CA (1)	CA1339507C (fr)

1996
- 1996-01-30 CA CA000617044A patent/CA1339507C/fr not_active Expired - Fee Related

Legal Events

Date	Code	Title	Description
2009-10-21	MKLA	Lapsed

Publication	Publication Date	Title
CA1339510C (fr)	1997-10-21	Polymere isosequence 1-olefinique; methode de preparation
US5700896A (en)	1997-12-23	Polymer having long isotactic sequences and randomly-distributed ethylene content obtained by polymerizing propylene in presence of specific catalysts
CA1319784C (fr)	1993-06-29	Procede pour la preparation d'un polymere alc-1-enique
AU624953B2 (en)	1992-06-25	Syndio-isoblock olefin polymers and process for their preparation
EP0511665B1 (fr)	1998-07-22	Catalyseur pour polymérisation d'une oléfine et procédé de production de polymère d'oléfine
KR100414759B1 (ko)	2004-01-13	메탈로센 화합물, 이것의 제조 방법, 및 이것의 올레핀중합용 촉매로서의 용도
EP0284708B1 (fr)	1996-01-31	Systèmes catalitiques métallocènes pour la polymérisation des oléfines, présentant un pont de hydrocarbure de silicium.
AU630451B2 (en)	1992-10-29	Process for the preparation of ethylene polymers
US6271164B1 (en)	2001-08-07	Supported catalyst system, process for its production and its use in polymerizing olefins
AU656968B2 (en)	1995-02-23	Process for the preparation of polyolefins having a broad molecular weight distribution
AU641639B2 (en)	1993-09-30	A process for the preparation of a syndiotactic polyolefin
US5346925A (en)	1994-09-13	Method for producing α-olefin polymers
AU648172B2 (en)	1994-04-14	Process for the preparation of syndiotactic polyolefins having a broad molecular weight distribution
JP2824082B2 (ja)	1998-11-11	シンジオタクチツクポリプロピレン
EP0354893B1 (fr)	1994-11-02	Procédé de production de grandes particules symétriques de polymères
AU595661B2 (en)	1990-04-05	Process for the preparation of a 1-olefin stereoblock polymer
CA2262396A1 (fr)	1998-09-17	Systeme de catalyseur sur support, procede permettant de le produire et son utilisation pour la polymerisation d'olefines
EP1083188A1 (fr)	2001-03-14	Catalyseur et procédé de préparation de polyoléfines à séquences syndiotactique / atactique
WO1998002469A1 (fr)	1998-01-22	Polyolefines a sequence syndiotactique/atactique, catalyseurs, et procedes de fabrication de ceux-ci
EP0328580B1 (fr)	1993-07-21	Catalyseur et procede de preparation de polystyrene syndiotactique
CA1319785C (fr)	1993-06-29	Procede pour la preparation de polymeres alc-1-eniques
JPH072936A (ja)	1995-01-06	アイソタクチツクポリオレフイン製造のための方法及び触媒
AU612277B2 (en)	1991-07-04	Process for the manufacture of 1-olefin polymers
CA2088114A1 (fr)	1993-07-28	Catalyseur et procede de polymerisation et de copolymerisation d'olefines
CA1338334C (fr)	1996-05-14	Polymere isosequence de propylene et methode de preparation