MX2023008719A - Bimodal polyethylene copolymers. - Google Patents
Bimodal polyethylene copolymers.Info
- Publication number
- MX2023008719A MX2023008719A MX2023008719A MX2023008719A MX2023008719A MX 2023008719 A MX2023008719 A MX 2023008719A MX 2023008719 A MX2023008719 A MX 2023008719A MX 2023008719 A MX2023008719 A MX 2023008719A MX 2023008719 A MX2023008719 A MX 2023008719A
- Authority
- MX
- Mexico
- Prior art keywords
- carbon atoms
- component
- total carbon
- scbs
- per
- Prior art date
Links
- 229920000573 polyethylene Polymers 0.000 title abstract 2
- 239000004698 Polyethylene Substances 0.000 title 1
- 230000002902 bimodal effect Effects 0.000 title 1
- -1 polyethylene copolymers Polymers 0.000 title 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 4
- 150000001875 compounds Chemical class 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 125000004429 atom Chemical group 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- 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
- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
- C08F2410/07—Catalyst support treated by an anion, e.g. Cl-, F-, SO42-
-
- 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
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/05—Bimodal or multimodal molecular weight distribution
-
- 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
- C08F4/65904—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with another component of C08F4/64
-
- 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
- C08F4/65916—Component covered by group C08F4/64 containing a transition metal-carbon bond supported on a carrier, e.g. silica, MgCl2, polymer
-
- 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
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65925—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
-
- 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
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65927—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Ethylene-based polymers are characterized by a density from 0.92 to 0.955 g/cm3, a HLMI of less than 35 g/10 min, and a ratio of a number of short chain branches (SCBs) per 1000 total carbon atoms at Mz to a number of SCBs per 1000 total carbon atoms at Mn in a range from 11.5 to 22. These polymers can have a higher molecular weight (HMW) component and a lower molecular weight (LMW) component, in which a ratio of a number of SCBs per 1000 total carbon atoms at Mn of the HMW component to a number of SCBs per 1000 total carbon atoms at Mn of the LMW component is in a range from 10.5 to 22. These ethylene polymers can be produced using a dual catalyst system containing an unbridged metallocene compound with an indenyl group having at least one halogen-substituted hydrocarbyl substituent with at least two halogen atoms, and a single atom bridged metallocene compound with a fluorenyl group and a cyclopentadienyl group.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/160,481 US11667777B2 (en) | 2019-10-04 | 2021-01-28 | Bimodal polyethylene copolymers |
PCT/US2022/070392 WO2022165503A1 (en) | 2021-01-28 | 2022-01-28 | Bimodal polyethylene copolymers |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2023008719A true MX2023008719A (en) | 2023-08-02 |
Family
ID=80786856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2023008719A MX2023008719A (en) | 2021-01-28 | 2022-01-28 | Bimodal polyethylene copolymers. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP4284845A1 (en) |
KR (1) | KR20230130025A (en) |
CN (1) | CN116783224A (en) |
CA (1) | CA3210180A1 (en) |
MX (1) | MX2023008719A (en) |
WO (1) | WO2022165503A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024185503A1 (en) * | 2023-03-07 | 2024-09-12 | 東ソー株式会社 | Resin modifier and resin composition comprising same |
Family Cites Families (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3248179A (en) | 1962-02-26 | 1966-04-26 | Phillips Petroleum Co | Method and apparatus for the production of solid polymers of olefins |
US3242099A (en) | 1964-03-27 | 1966-03-22 | Union Carbide Corp | Olefin polymerization catalysts |
US4501885A (en) | 1981-10-14 | 1985-02-26 | Phillips Petroleum Company | Diluent and inert gas recovery from a polymerization process |
US4588790A (en) | 1982-03-24 | 1986-05-13 | Union Carbide Corporation | Method for fluidized bed polymerization |
US4808561A (en) | 1985-06-21 | 1989-02-28 | Exxon Chemical Patents Inc. | Supported polymerization catalyst |
US4794096A (en) | 1987-04-03 | 1988-12-27 | Fina Technology, Inc. | Hafnium metallocene catalyst for the polymerization of olefins |
US5565175A (en) | 1990-10-01 | 1996-10-15 | Phillips Petroleum Company | Apparatus and method for producing ethylene polymer |
US5575979A (en) | 1991-03-04 | 1996-11-19 | Phillips Petroleum Company | Process and apparatus for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator |
US5436304A (en) | 1992-03-19 | 1995-07-25 | Exxon Chemical Patents Inc. | Process for polymerizing monomers in fluidized beds |
US5352749A (en) | 1992-03-19 | 1994-10-04 | Exxon Chemical Patents, Inc. | Process for polymerizing monomers in fluidized beds |
US5576259A (en) | 1993-10-14 | 1996-11-19 | Tosoh Corporation | Process for producing α-olefin polymer |
DE69611554T2 (en) | 1995-02-20 | 2001-07-05 | Tosoh Corp., Shinnanyo | Catalyst for the polymerization of olefins and process for the preparation of olefin polymers |
ATE194629T1 (en) | 1996-03-27 | 2000-07-15 | Dow Chemical Co | HIGHLY SOLUBLE ACTIVATION AGENT FOR OLEFIN POLYMERIZATION CATALYST |
US6239235B1 (en) | 1997-07-15 | 2001-05-29 | Phillips Petroleum Company | High solids slurry polymerization |
KR100531628B1 (en) | 1998-03-20 | 2005-11-29 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | Continuous slurry polymerization volatile removal |
US6165929A (en) | 1998-05-18 | 2000-12-26 | Phillips Petroleum Company | Compositions that can produce polymers |
US6107230A (en) | 1998-05-18 | 2000-08-22 | Phillips Petroleum Company | Compositions that can produce polymers |
BR9910611B1 (en) | 1998-05-18 | 2009-05-05 | process for producing a catalyst composition. | |
US6300271B1 (en) | 1998-05-18 | 2001-10-09 | Phillips Petroleum Company | Compositions that can produce polymers |
US6294494B1 (en) | 1998-12-18 | 2001-09-25 | Phillips Petroleum Company | Olefin polymerization processes and products thereof |
US6262191B1 (en) | 1999-03-09 | 2001-07-17 | Phillips Petroleum Company | Diluent slip stream to give catalyst wetting agent |
US6355594B1 (en) | 1999-09-27 | 2002-03-12 | Phillips Petroleum Company | Organometal catalyst compositions |
US6376415B1 (en) | 1999-09-28 | 2002-04-23 | Phillips Petroleum Company | Organometal catalyst compositions |
US6395666B1 (en) | 1999-09-29 | 2002-05-28 | Phillips Petroleum Company | Organometal catalyst compositions |
US6391816B1 (en) | 1999-10-27 | 2002-05-21 | Phillips Petroleum | Organometal compound catalyst |
US6548441B1 (en) | 1999-10-27 | 2003-04-15 | Phillips Petroleum Company | Organometal catalyst compositions |
US6613712B1 (en) | 1999-11-24 | 2003-09-02 | Phillips Petroleum Company | Organometal catalyst compositions with solid oxide supports treated with fluorine and boron |
US6548442B1 (en) | 1999-12-03 | 2003-04-15 | Phillips Petroleum Company | Organometal compound catalyst |
US6750302B1 (en) | 1999-12-16 | 2004-06-15 | Phillips Petroleum Company | Organometal catalyst compositions |
US6524987B1 (en) | 1999-12-22 | 2003-02-25 | Phillips Petroleum Company | Organometal catalyst compositions |
US6632894B1 (en) | 1999-12-30 | 2003-10-14 | Phillips Petroleum Company | Organometal catalyst compositions |
US6667274B1 (en) | 1999-12-30 | 2003-12-23 | Phillips Petroleum Company | Polymerization catalysts |
US7041617B2 (en) | 2004-01-09 | 2006-05-09 | Chevron Phillips Chemical Company, L.P. | Catalyst compositions and polyolefins for extrusion coating applications |
US6576583B1 (en) | 2000-02-11 | 2003-06-10 | Phillips Petroleum Company | Organometal catalyst composition |
US6388017B1 (en) | 2000-05-24 | 2002-05-14 | Phillips Petroleum Company | Process for producing a polymer composition |
US7531606B2 (en) | 2004-05-26 | 2009-05-12 | Chevron Phillips Chemical Company Lp | Method for operating a gas phase polymerization reactor |
US7294599B2 (en) | 2004-06-25 | 2007-11-13 | Chevron Phillips Chemical Co. | Acidic activator-supports and catalysts for olefin polymerization |
US7598327B2 (en) | 2004-11-10 | 2009-10-06 | Chevron Phillips Chemical Company Lp | Method for polymerizing olefins in a gas phase reactor using a seedbed during start-up |
US7026494B1 (en) | 2005-01-10 | 2006-04-11 | Chevron Phillips Chemical Company, Lp | Polymerization catalysts for producing high melt index polymers without the use of hydrogen |
US7312283B2 (en) | 2005-08-22 | 2007-12-25 | Chevron Phillips Chemical Company Lp | Polymerization catalysts and process for producing bimodal polymers in a single reactor |
US7226886B2 (en) | 2005-09-15 | 2007-06-05 | Chevron Phillips Chemical Company, L.P. | Polymerization catalysts and process for producing bimodal polymers in a single reactor |
US7517939B2 (en) | 2006-02-02 | 2009-04-14 | Chevron Phillips Chemical Company, Lp | Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching |
US7619047B2 (en) | 2006-02-22 | 2009-11-17 | Chevron Phillips Chemical Company, Lp | Dual metallocene catalysts for polymerization of bimodal polymers |
US7884163B2 (en) | 2008-03-20 | 2011-02-08 | Chevron Phillips Chemical Company Lp | Silica-coated alumina activator-supports for metallocene catalyst compositions |
US8114946B2 (en) | 2008-12-18 | 2012-02-14 | Chevron Phillips Chemical Company Lp | Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches |
US8309485B2 (en) | 2009-03-09 | 2012-11-13 | Chevron Phillips Chemical Company Lp | Methods for producing metal-containing sulfated activator-supports |
US8703886B1 (en) | 2013-02-27 | 2014-04-22 | Chevron Phillips Chemical Company Lp | Dual activator-support catalyst systems |
US8623973B1 (en) | 2013-03-08 | 2014-01-07 | Chevron Phillips Chemical Company Lp | Activator supports impregnated with group VIII transition metals for polymer property control |
US8822608B1 (en) | 2013-03-12 | 2014-09-02 | Chevron Phillips Chemical Co. LP. | Polyolefin production with different diluents in multiple polymerization reactors |
US9023959B2 (en) | 2013-07-15 | 2015-05-05 | Chevron Phillips Chemical Company Lp | Methods for producing fluorided-chlorided silica-coated alumina activator-supports and catalyst systems containing the same |
US9156970B2 (en) * | 2013-09-05 | 2015-10-13 | Chevron Phillips Chemical Company Lp | Higher density polyolefins with improved stress crack resistance |
US10442921B2 (en) * | 2017-04-19 | 2019-10-15 | Nova Chemicals (International) S.A. | Means for increasing the molecular weight and decreasing the density employing mixed homogeneous catalyst formulations |
US20190135960A1 (en) * | 2017-11-07 | 2019-05-09 | Nova Chemicals (International) S.A. | Process to manufacture ethylene interpolymer products |
US11667777B2 (en) * | 2019-10-04 | 2023-06-06 | Chevron Phillips Chemical Company Lp | Bimodal polyethylene copolymers |
US11186665B2 (en) * | 2019-10-04 | 2021-11-30 | Chevron Phillips Chemical Company Lp | Catalyst composition and method for preparing polyethylene |
CN116547310A (en) * | 2020-12-02 | 2023-08-04 | 埃克森美孚化学专利公司 | Medium density polyethylene composition with wide orthogonal composition distribution |
-
2022
- 2022-01-28 WO PCT/US2022/070392 patent/WO2022165503A1/en active Application Filing
- 2022-01-28 CA CA3210180A patent/CA3210180A1/en active Pending
- 2022-01-28 MX MX2023008719A patent/MX2023008719A/en unknown
- 2022-01-28 CN CN202280011968.7A patent/CN116783224A/en active Pending
- 2022-01-28 KR KR1020237025643A patent/KR20230130025A/en not_active Application Discontinuation
- 2022-01-28 EP EP22704487.2A patent/EP4284845A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
KR20230130025A (en) | 2023-09-11 |
EP4284845A1 (en) | 2023-12-06 |
WO2022165503A1 (en) | 2022-08-04 |
CN116783224A (en) | 2023-09-19 |
CA3210180A1 (en) | 2022-08-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR940011559A (en) | Ethylene Copolymer Composition | |
CA2146208A1 (en) | Polymerisation process | |
US6346575B1 (en) | Production of multimodal polythylene | |
US5084534A (en) | High pressure, high temperature polymerization of ethylene | |
US7829641B2 (en) | Process for the preparation of multimodal polyethylene resins | |
MY190028A (en) | Dual catalyst system for producing high density polyethylenes with long chain branching | |
WO2004085499A3 (en) | Metallocene catalysts and preparation of polyolefins therewith | |
US6218472B1 (en) | Production of multimodal polyethylene | |
CA2480399A1 (en) | Method for polymerisation of olefins with indeno-indolyl catalysts | |
JP2009062539A5 (en) | ||
RU98122612A (en) | POLYOLEPHIN COMPOSITION WITH MAXIMUM MOLECULAR MASS IN THIS PART OF THE COMPOSITION WHICH HAS THE HIGHEST CONTENT OF THE SONOMOMER | |
RU2008141228A (en) | BIS-ARILARILOXI CATALYTIC SYSTEM FOR PRODUCING HOMOPOLYMERS OF ETHYLENE AND COPOLYMERS OF ETHYLENE WITH α-OLEPHINS | |
KR960010689A (en) | Catalyst system and polyolefin production method | |
JP2002523536A5 (en) | ||
MX2023008719A (en) | Bimodal polyethylene copolymers. | |
MX2022011975A (en) | Dual catalyst system for producing lldpe and mdpe copolymers with long chain branching for film applications. | |
RU2010148135A (en) | CATALYTIC SYSTEMS BASED ON TRANSITION METALS AND METHODS FOR PRODUCING HOMOPOLYMERS OF ETHYLENE OR COPOLYMERS OF ETHYLENE AND A-OLEPHINS USING THESE SYSTEMS | |
KR940011490A (en) | Catalyst for olefin polymerization, olefin polymerization method using the same, ethylene / α-olefin copolymer graft modified ethylene / α-olefin copolymer and ethylene copolymer composition | |
RU2005127071A (en) | COMPOSITION FOR COATING, METHOD FOR PRODUCING IT AND SUBSTRATE COATING FROM IT | |
CN116710496A (en) | Olefin-based polymer and process for producing the same | |
AU2003246962A1 (en) | Shrink film | |
EP2201048A1 (en) | Pipes for transporting water containing chloramine | |
JP3872141B2 (en) | Barrier packaging material | |
JP5209316B2 (en) | Polymers such as LDPE with bisindenyl-based ligands having different rings | |
JP3699513B2 (en) | Stretch film |