WO2007031295A1 - Process for the preparation of a metal-organic compound comprising a spectator ligand - Google Patents
Process for the preparation of a metal-organic compound comprising a spectator ligand Download PDFInfo
- Publication number
- WO2007031295A1 WO2007031295A1 PCT/EP2006/008916 EP2006008916W WO2007031295A1 WO 2007031295 A1 WO2007031295 A1 WO 2007031295A1 EP 2006008916 W EP2006008916 W EP 2006008916W WO 2007031295 A1 WO2007031295 A1 WO 2007031295A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- ligand
- sub
- metal
- imine
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/28—Titanium compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F19/00—Metal compounds according to more than one of main groups C07F1/00 - C07F17/00
-
- 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
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
Definitions
- the invention relates to a process for the preparation of an organometallic compound according to formula 1 :
- M is a metal of groups 3 -13 or the lanthanide series, and p is the valency of the metal M,
- A represents an anionic spectator ligand whose valency v is 1 or 2
- Y is a spectator ligand represented by formula 2:
- SUb 1 is a substituent, which comprises a group 14 atom through which Subi is bonded to the imine carbon atom.
- Sub 2 is a substituent, which comprises an atom of groups 15-16, through which Sub 2 is bonded to the imine carbon atom, SUb 1 and Sub 2 may be connected to each other to form a ring system, r is an integer > 0 and represents the number of spectator ligands Y, L is an optional neutral Lewis basic ligand, and j is an integer denoting the number of neutral ligands L, X is a halide, and R is an anionic ligand.
- Organometallic compounds thus produced are typically used as precatalyst in the production of polyolefins. Such a process is known from W0-A1 -2005/013663.
- Imine ligands for these precatalysts can be guanidine, iminoimidazoline, amidine or a ketimine.
- CpTiCI 3 is reacted with the imine ligand and the reaction product, being an intermediate dichloride complex, is subsequently alkylated with an organolithium compound or an organomagnesium compound.
- An object of the present invention is therefore to provide an alternative process for the preparation of an organometallic compound that can be carried out in an aliphatic hydrocarbon without the above-mentioned disadvantages.
- an organometallic compound suitable as precatalyst in olefin polymerization, can be prepared in an aliphatic hydrocarbon (linear, branched or cyclic) comprising between 3 and 20 carbon atoms, which is generally the same solvent as is used in a subsequent olefin polymerization.
- An additional advantage of the method of the invention is that during the second step of the process, wherein the precursor is contacted with the spectator ligand, no solid side products are formed, so that purification after this step is not necessary before the precatalyst prepared according to the method of the invention can be applied in a subsequent olefin polymerization process.
- the organometallic compound prepared by the method of the invention has the same performance as an organometallic compound prepared via known production processes. Another advantage of this method is that multiple extractions and solvent changes, through evaporation of the reaction or extraction solvent and then by being redissolved in a solvent suitable for the polymerization, can be avoided. A further advantage of the process of the invention is that the process can be carried out at room temperature.
- the ligand L may be present in the organometallic compound for reasons of stability. If the ligand L is present, L can be an ether, a thioether, a tertiary amine, a tertiary phosphane, an imine, or a bi-, or oligodentate, comprising an ether, a thioether, a tertiary amine, or a tertiary phosphane functional group, or combinations thereof.
- A represents an anionic spectator ligand whose valency v is 1 or 2.
- Suitable ligands A are (substituted) cyclopentadienyl groups, (substituted) indenyl groups, (substituted) fluorenyl groups, (substituted) tetrahydroindenyl groups, (substituted) tetrahydrofluorenyl groups, (substituted) octahydrofluorenyl groups, (substituted) benzoindenyl groups, (substituted) heterocyclopentadienyl groups, (substituted) heteroindenyl groups, (substituted) heterofluorenyl groups, or their isomers.
- a heterocyclopentadienyl group (hereinafter referred to as 'hetero ligand') is understood to be a group that has been derived from a cyclopentadienyl group, but in which at least one of the C atoms in the 5-ring of the cyclopentadienyl has been replaced by a heteroatom, which heteroatom may be chosen from group 13, 15 or 16. If there is more than one heteroatom present in the 5-ring of the hetero ligand, these heteroatoms may be the same or different. More preferably, the heteroatom is chosen from group 15, while yet more preferably the heteroatom is phosphorus.
- R is an anionic ligand independently selected from the group consisting of alkyl or arylalkyl, e.g. benzyl, aryl, or a combination thereof.
- the anionic ligand R is free from ⁇ -hydrogen atoms on an aliphatic carbon atom.
- anionic ligands free from ⁇ -hydrogen atoms are methyl, and compounds with the general formula -CH 2 -(BR 1 R 2 Rs), wherein B can be C, Si or Ge, and the substituents R 1 , R 2 and R 3 can be chosen from the group of (cyclo)aliphatic hydrocarbons, or (substituted) aromatic hydrocarbons. R 1 , R 2 and R 3 can be the same or different, both substituted and unsubstituted. R is preferably methyl or benzyl.
- the spectator ligand Y represented by formula 2 is covalently bonded to the metal via the imine nitrogen atom.
- SUb 1 is a substituent that comprises a group 14 atom, preferably a carbon atom through which SUb 1 is bound to the imine carbon atom.
- SUb 1 preferably represents a hydrocarbyl radical, optionally substituted with heteroatoms of groups 13 - 17, or a silyl radical, optionally substituted with group - A -
- Sub 2 is a substituent, which comprises an atom of groups 15-16, through which Sub 2 is bonded to the imine carbon atom.
- this atom is selected from the group of nitrogen, phosphorus, oxygen or sulfur.
- Sub 2 is preferably an amide, imide, phosphide, phospinimide, oxide, sulphide radical, optionally substituted with hydrocarbyl radicals or silyl radicals as described for SUb 1 .
- An organometallic compound according to the invention exhibits a high efficiency for the polymerization of both ethylene and propylene or copolymers of ethylene and alpha olefins and terpolymers of ethylene, alpha olefins and other polymerizable olefins having one or more double bonds.
- Catalysts comprising the organometallic compound according to the invention are particularly suitable for the production of EPDM.
- the process of the invention is carried out in an aliphatic hydrocarbon with between 3 and 20 carbon atoms.
- suitable hydrocarbons are isobutane, pentane, isopentane, hexane, cyclohexane, heptane, cycloheptane.
- Part 1 synthesis of catalyst components General part Experiments were performed under a dry and oxygen-free nitrogen atmosphere using Schlenk-line techniques. 1 H-NMR 1 13 C-NMR-spectra and 19 F-NMR- spectra were measured on a Bruker Avance 300 spectrometer. Aliphatic solvents were distilled from sodium/potassium alloy with benzophenone as indicator. Me5CpTiMe3 was prepared as mentioned in: Organometallics, 8 (1989), 376-382. Other starting materials were used as obtained.
- the organic phase was separated from the aqueous phase and the latter was extracted twice with diethylether (200 ml). The combined organic phases were dried over sodium sulphate, filtered and the solvent was removed under reduced pressure giving 5.30 g (91%) of pure product.
- the ligand was characterized by 1 H NMR 300 MHz (CDCI 3 ) ⁇ (ppm): 7.2 (m, 1 H), 6.8 (m.
- the hexane of the combined organic phases was removed in vacuo resulting in 0.44g of products as an orange powder.
- the product consisted of a mixture of the desired complex, contaminated with unreacted Me 5 CpTiCI 3 and N,N-diisopropyl-2,6-difluorobenzamidine as can be concluded from NMR analysis.
- Me 5 CpTiCI 3 (580 mg, 2.00 mmol) and N,N-diisopropyl-2,6- difluorobenzamidine (488 mg, 2.03 mmol) were dissolved in hexanes (30 ml). Only a small amount of the Me 5 CpTiCI 3 dissolved. Next triethylamine (0.5 ml) was added and the reaction mixture was stirred for 60 hours. The reaction mixture was filtered and the residue was rinsed once with hexanes (50 ml). The solvent of the combined organic phases (filtrate and rinse liquid) was removed in vacuo resulting in 0.33g (33%) of products as an orange powder.
- Example 1 Synthesis of MegCpTi(Me?)(NC(2.6-F ? Ph)('Pr 9 N)) (compound 1) Synthesis of pentamethylcvclopentadienyltitaniumtrimethyl Pentamethylcyclopentadienyltitaniumtrichloride (3.09g, 10.7 mmol) were suspended in hexane (50 ml). The suspension was cooled to O 0 C and methyllithium solution (1.6M in diethylether, 20.0 ml, 32 mmol) was added dropwise. The mixture was stirred at O 0 C for TA hours after which it was allowed to warm to room temperature. Stirring was continued at room temperature for 30 minutes.
- Dicyclohexylamine (18.1 g, 0.10 mmol) was dissolved in diethylether (150 ml). The solution was heated to reflux temperature and a solution of methylmagnesiumbromide (33 ml, 3.0 M in diethylether, 0.10 mol) was added dropwise over a period of 20 minutes. After the addition, the reaction mixture was stirred for 3 hours at room temperature. Benzonitrile (10.3 g, 0.10 mol) was added and the reaction mixture was stirred for 20 hours at room temperature. A solution of ammoniumchloride (10% in water, 100 ml) was added. The water and organic layers were separated and the water layer was extracted twice with diethylether (150 ml).
- the reactor was filled with pentamethylheptane (PMH) (950 ml_), MAO (Crompton, 10 wt% in toluene), butylated hydroxytoluene (BHT), 5-ethylidene-2-norbornene (ENB) (0.7 ml_) and 5-vinyl-2- norbornene (VNB) (0.7 ml_).
- PMH pentamethylheptane
- MAO Chropton, 10 wt% in toluene
- BHT butylated hydroxytoluene
- ENB 5-ethylidene-2-norbornene
- VNB 5-vinyl-2- norbornene
- the reactor was pressurized and conditioned under a determined ratio of ethylene, propylene and hydrogen (0.35 NL/h) After 15 minutes, the catalyst components were added into the reactor and the catalyst vessel was rinsed with PMH (50 ml.) subsequently. After 10 minutes of polymerization, the monomer flow was stopped and the solution was carefully dumped in an Erlenmeyer flask of 2 L, containing a solution of lrganox-1076 in isopropanol and dried overnight at 100 0 C under reduced pressure. The polymers were analyzed using FT-IR for composition and SEC-DV for the molecular weight distribution.
- Viscotek data processing software TriSEC 2.7 or higher version
- FT-IR Fourier transformation infrared spectroscopy
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT06792035T ATE520720T1 (en) | 2005-09-16 | 2006-09-13 | METHOD FOR PRODUCING AN ORGANOMETAL COMPOUND USING A SPECTATOR LIGAND |
KR1020087009004A KR101293419B1 (en) | 2005-09-16 | 2006-09-13 | Process for the preparation of a metal-organic compound comprising a spectator ligand |
BRPI0616075-1A BRPI0616075A2 (en) | 2005-09-16 | 2006-09-13 | process for the preparation of an organometallic compound comprising a bystander binder |
EP06792035A EP1924611B1 (en) | 2005-09-16 | 2006-09-13 | Process for the preparation of a metal-organic compound comprising a spectator ligand |
CN2006800340882A CN101268106B (en) | 2005-09-16 | 2006-09-13 | Process for the preparation of a metal-organic compound comprising a spectator ligand |
JP2008530411A JP5148495B2 (en) | 2005-09-16 | 2006-09-13 | Method for preparing organometallic compound containing spectator ligand |
US12/066,468 US7705172B2 (en) | 2005-09-16 | 2006-09-13 | Process for the preparation of a metal-organic compound comprising a spectator ligand |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05077117.9 | 2005-09-16 | ||
EP05077117A EP1764376A1 (en) | 2005-09-16 | 2005-09-16 | Process for the preparation of a metal-organic compound comprising a spectator ligand |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007031295A1 true WO2007031295A1 (en) | 2007-03-22 |
Family
ID=35677298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/008916 WO2007031295A1 (en) | 2005-09-16 | 2006-09-13 | Process for the preparation of a metal-organic compound comprising a spectator ligand |
Country Status (8)
Country | Link |
---|---|
US (1) | US7705172B2 (en) |
EP (2) | EP1764376A1 (en) |
JP (1) | JP5148495B2 (en) |
KR (1) | KR101293419B1 (en) |
CN (1) | CN101268106B (en) |
AT (1) | ATE520720T1 (en) |
BR (1) | BRPI0616075A2 (en) |
WO (1) | WO2007031295A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009063084A2 (en) * | 2007-11-15 | 2009-05-22 | Dsm Ip Assets Bv | Process for the preparation of ultra high molecular weight polyethylene |
EP3409697A1 (en) | 2017-05-28 | 2018-12-05 | SABIC Global Technologies B.V. | Preparation of polymer dispersions |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6691009B2 (en) * | 2016-07-05 | 2020-04-28 | 株式会社Adeka | Raw material for forming metal carbide-containing thin film and method for producing metal carbide-containing thin film |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114481A (en) * | 1997-09-15 | 2000-09-05 | Nova Chemicals (International) S.A. | Catalyst having a ketimide ligand |
WO2002070569A1 (en) | 2001-03-05 | 2002-09-12 | Stichting Dutch Polymer Institute | Olefin polymerization catalyst component and catalyst system and polymerization process using such a catalyst system |
WO2005014665A1 (en) * | 2003-08-04 | 2005-02-17 | Dsm Ip Assets B.V. | Process for the preparation of a metalloorganic compound comprising at least one imine ligand |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11236410A (en) * | 1998-02-20 | 1999-08-31 | Nippon Polyolefin Kk | Production of ultrahigh molecular weight ethylenic polymer |
DE19924176A1 (en) * | 1999-05-27 | 2000-11-30 | Bayer Ag | Catalyst system based on fulvene compounds |
-
2005
- 2005-09-16 EP EP05077117A patent/EP1764376A1/en not_active Withdrawn
-
2006
- 2006-09-13 KR KR1020087009004A patent/KR101293419B1/en not_active IP Right Cessation
- 2006-09-13 JP JP2008530411A patent/JP5148495B2/en not_active Expired - Fee Related
- 2006-09-13 BR BRPI0616075-1A patent/BRPI0616075A2/en not_active IP Right Cessation
- 2006-09-13 AT AT06792035T patent/ATE520720T1/en not_active IP Right Cessation
- 2006-09-13 CN CN2006800340882A patent/CN101268106B/en not_active Expired - Fee Related
- 2006-09-13 US US12/066,468 patent/US7705172B2/en not_active Expired - Fee Related
- 2006-09-13 EP EP06792035A patent/EP1924611B1/en not_active Not-in-force
- 2006-09-13 WO PCT/EP2006/008916 patent/WO2007031295A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114481A (en) * | 1997-09-15 | 2000-09-05 | Nova Chemicals (International) S.A. | Catalyst having a ketimide ligand |
WO2002070569A1 (en) | 2001-03-05 | 2002-09-12 | Stichting Dutch Polymer Institute | Olefin polymerization catalyst component and catalyst system and polymerization process using such a catalyst system |
WO2005014665A1 (en) * | 2003-08-04 | 2005-02-17 | Dsm Ip Assets B.V. | Process for the preparation of a metalloorganic compound comprising at least one imine ligand |
WO2005014666A1 (en) * | 2003-08-04 | 2005-02-17 | Dsm Ip Assets B.V. | Process for the preparation of a metal-organic compound comprising at least one imine ligand |
WO2005014663A1 (en) | 2003-08-04 | 2005-02-17 | Dsm Ip Assets B.V. | Process for the preparation of an metalloorganic compound comprising at least one imine ligand |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009063084A2 (en) * | 2007-11-15 | 2009-05-22 | Dsm Ip Assets Bv | Process for the preparation of ultra high molecular weight polyethylene |
WO2009063084A3 (en) * | 2007-11-15 | 2009-07-09 | Dsm Ip Assets Bv | Process for the preparation of ultra high molecular weight polyethylene |
EP3409697A1 (en) | 2017-05-28 | 2018-12-05 | SABIC Global Technologies B.V. | Preparation of polymer dispersions |
WO2018219690A1 (en) | 2017-05-28 | 2018-12-06 | Sabic Global Technologies B.V. | Transition metal complex for use in or as a catalyst for olefin polymerization |
US11312795B2 (en) | 2017-05-28 | 2022-04-26 | Sabic Global Technologies B.V. | Transition metal complex for use in or as a catalyst for olefin polymerization |
Also Published As
Publication number | Publication date |
---|---|
ATE520720T1 (en) | 2011-09-15 |
JP2009507873A (en) | 2009-02-26 |
EP1764376A1 (en) | 2007-03-21 |
KR20080059210A (en) | 2008-06-26 |
US7705172B2 (en) | 2010-04-27 |
CN101268106A (en) | 2008-09-17 |
CN101268106B (en) | 2010-08-25 |
EP1924611B1 (en) | 2011-08-17 |
EP1924611A1 (en) | 2008-05-28 |
JP5148495B2 (en) | 2013-02-20 |
BRPI0616075A2 (en) | 2011-06-07 |
KR101293419B1 (en) | 2013-08-05 |
US20090137830A1 (en) | 2009-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2228937C2 (en) | Method for co-polymerization of olefins with bridging hafnocenes | |
KR100420432B1 (en) | Supported catalyst and polymerization method using the same | |
KR101775239B1 (en) | Method of olefin oligomerization | |
JP2994746B2 (en) | Monocyclopentadienyl transition metal olefin polymerization catalyst | |
US5986029A (en) | Catalyst composition and process for the polymerization of an olefin | |
KR101002620B1 (en) | Substituted indenyl metal complexes and polymerization process | |
EP3286202B1 (en) | Bridged bi-aromatic ligands and transition metal compounds prepared therefrom | |
EP3219718A1 (en) | Ligand compound, transition metal compound, and catalyst composition containing compounds | |
KR101146875B1 (en) | Transition metal catalytic systems and methods for preparing ethylene homopolymers or copolymers of ethylene and olefins using the same | |
KR101151606B1 (en) | Transition metal complexes, catalysts composition containing the same, and process for preparing ethylene homopolymers or copolymers of ethylene and a-olefins using the same | |
US6313331B1 (en) | Carbene transition metal catalysts | |
EP1924611B1 (en) | Process for the preparation of a metal-organic compound comprising a spectator ligand | |
EP0967229A1 (en) | Metal complex containing one or more silsesquioxane ligands | |
KR20160005034A (en) | Metal complex with a bridged cvclopentadienyl amidine ligand | |
EP3243848B1 (en) | Hybrid supported catalyst system and method of preparing polyolefin using the same | |
US6872863B2 (en) | Methylene bridged metallocenes as olefin-polymerization catalyst components | |
US6774253B1 (en) | Process for the preparation of titanium complexes | |
KR20150138042A (en) | NEW TRANSITION METAL COMPLEXES, CATALYST COMPOSITIONS CONTAINING THE SAME FOR OLEFIN POLYMERIZATION AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND α-OLEFINS USING THE SAME | |
US8450510B2 (en) | Amine bridged metallocene catalyst, method for preparing thereof and method for polymerizing ethylene-alpha olefin copolymer using amine bridged metallocene catalyst | |
EP3159360A1 (en) | Transition metal compound, catalyst composition containing same, and method for preparing polyolefin | |
EP3288953B1 (en) | Bis(aminophenylphenol) ligands and transition metal compounds prepared therefrom | |
US6444766B1 (en) | Method for producing carrier-borne catalysts | |
EP1651686B1 (en) | Improved method of preparing a hydrocarbylated metal-organic compound | |
WO2005028520A1 (en) | Carborane trianion based catalyst | |
WO2003051936A1 (en) | Bidentate ligand based catalyst for the polymerization of olefins |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006792035 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200680034088.2 Country of ref document: CN Ref document number: 2008530411 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020087009004 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2006792035 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12066468 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: PI0616075 Country of ref document: BR Kind code of ref document: A2 Effective date: 20080314 |