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CCHEMISTRY METALLURGY C08Organic compounds C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS C08F4/00Polymerisation catalysts

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Patents Grantslast 30 patents

Information Patent Grant
Processes for preparing metallocene-based catalyst systems for the...
- Patent number 12,240,933
- Issue date Mar 4, 2025
- Chevron Phillips Chemical Company LP
- Qing Yang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing a catalyst for olefin polymerization
- Patent number 12,187,835
- Issue date Jan 7, 2025
- Hanwha Solutions Corporation
- Seongjae Lim
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing catalysts and catalyst compositions
- Patent number 12,152,101
- Issue date Nov 26, 2024
- Formosa Plastics Corporation, U.S.A.
- Michael D. Jensen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Transition metal compound and catalyst composition comprising the same
- Patent number 12,134,674
- Issue date Nov 5, 2024
- LG Chem, Ltd.
- Byung Seok Kim
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Controlling long-chain branch content with dual activator-supports
- Patent number 12,122,857
- Issue date Oct 22, 2024
- Chevron Phillips Chemical Company LP
- Max P. McDaniel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Continuous process for metallocene preliminary polymerization for g...
- Patent number 12,110,359
- Issue date Oct 8, 2024
- Braskem S.A.
- Olavo Martins Junior
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
On-line adjustment of catalysts by trim and olefin polymerization
- Patent number 12,091,476
- Issue date Sep 17, 2024
- ExxonMobil Chemical Patents Inc.
- Kevin A. Stevens
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyethylene having high pressure resistance and crosslinked polyet...
- Patent number 12,065,514
- Issue date Aug 20, 2024
- LG Chem, Ltd.
- Sol Cho
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bimodal polyethylene copolymer composition and pipe made thereof
- Patent number 12,049,527
- Issue date Jul 30, 2024
- Univation Technologies, LLC
- Cliff R. Mure
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Olefin polymerization method using antistatic agent for metallocene...
- Patent number 12,049,526
- Issue date Jul 30, 2024
- DL Chemical CO., LTD.
- Jang Woo Lee
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Processes for preparing metallocene-based catalyst systems with an...
- Patent number 12,037,421
- Issue date Jul 16, 2024
- Chevron Phillips Chemical Company LP
- Qing Yang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Modifications of sulfated bentonites and uses thereof in metallocen...
- Patent number 11,999,814
- Issue date Jun 4, 2024
- Chevron Phillips Chemical Company LP
- Max P. McDaniel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyethylene resins
- Patent number 11,952,444
- Issue date Apr 9, 2024
- Total Research and Technology Feluy
- Virginie Cirriez
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for preparing metallocene-based catalyst systems for the...
- Patent number 11,945,897
- Issue date Apr 2, 2024
- Chevron Phillips Chemical Company LP
- Qing Yang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Transition metal compound for a catalyst for olefin polymerization...
- Patent number 11,926,692
- Issue date Mar 12, 2024
- Hanwha Solutions Corporation
- SeongYeon Park
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dual catalyst composition
- Patent number 11,919,980
- Issue date Mar 5, 2024
- Total Research and Technology Feluy
- Virginie Cirriez
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Polyethylene resin composition, laminate, and medical container
- Patent number 11,884,799
- Issue date Jan 30, 2024
- Tosoh Corporation
- Hideyasu Nakao
- B32 - LAYERED PRODUCTS
Information Patent Grant
Catalyst for olefin polymerization
- Patent number 11,859,040
- Issue date Jan 2, 2024
- Hanwha Solutions Corporation
- Junho Seo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Processes for preparing metallocene-based catalyst systems for the...
- Patent number 11,845,826
- Issue date Dec 19, 2023
- Chevron Phillips Chemical Company LP
- Qing Yang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyethylene composition
- Patent number 11,845,855
- Issue date Dec 19, 2023
- Univation Technologies LLC
- Swapnil Chandak
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst composition and method for preparing polyolefin using the...
- Patent number 11,840,596
- Issue date Dec 12, 2023
- LG Chem, Ltd.
- Seungmi Lee
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing catalysts and catalyst compositions
- Patent number 11,814,461
- Issue date Nov 14, 2023
- Formosa Plastics Corporation, U.S.A.
- Michael D. Jensen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalysts
- Patent number 11,807,655
- Issue date Nov 7, 2023
- Borealis AG
- Wilfried Toeltsch
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Power cable polymer composition comprising thermoplastic and having...
- Patent number 11,783,960
- Issue date Oct 10, 2023
- Borealis AG
- Villgot Englund
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metallocene-supported catalyst and method of preparing polyolefin u...
- Patent number 11,767,377
- Issue date Sep 26, 2023
- LG Chem Ltd.
- Eun Young Shin
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
High melt flow polypropylene homopolymers for fiber applications
- Patent number 11,761,120
- Issue date Sep 19, 2023
- Chevron Phillips Chemical Company LP
- Graham R. Lief
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Olefin polymer and preparation method thereof
- Patent number 11,746,168
- Issue date Sep 5, 2023
- LG Chem, Ltd.
- Oh Joo Kwon
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Supported catalyst systems and processes for use thereof
- Patent number 11,738,334
- Issue date Aug 29, 2023
- ExxonMobil Chemical Patents Inc.
- Matthew W. Holtcamp
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Methods for determining transition metal compound concentrations in...
- Patent number 11,735,293
- Issue date Aug 22, 2023
- Chevron Phillips Chemical Company LP
- Richard M. Buck
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Catalyst systems and polymerization processes for using the same
- Patent number 11,712,687
- Issue date Aug 1, 2023
- ExxonMobil Chemical Patents Inc.
- Matthew W. Holtcamp
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
CATALYST FOR OLEFIN POLYMERIZATION INCLUDING HYBRID CATALYST COMPOS...
- Publication number 20250043038
- Publication date Feb 6, 2025
- Hanwha Solutions Corporation
- Hye Ran PARK
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
HIGH MELT FLOW POLYPROPYLENE COMPOSITION
- Publication number 20250026872
- Publication date Jan 23, 2025
- Borealis AG
- Jingbo Wang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYOLEFIN HAVING EXCELLENT PROCESSABILITY AND PROCESS FOR PREPARIN...
- Publication number 20250019474
- Publication date Jan 16, 2025
- Hanwha Solutions Corporation
- Ahreum KIM
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
SUPPORTED CATALYST SYSTEMS CONTAINING A CARBON BRIDGED, ANTHRACENYL...
- Publication number 20250011478
- Publication date Jan 9, 2025
- DOW GLOBAL TECHNOLOGIES LLC
- Andrew M. Camelio
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CONTROLLING LONG-CHAIN BRANCH CONTENT WITH DUAL ACTIVATOR-SUPPORTS
- Publication number 20250011481
- Publication date Jan 9, 2025
- Chevron Phillips Chemical Company LP
- Max P. McDaniel
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR PRODUCING A PROPYLENE COPOLYMER
- Publication number 20240392043
- Publication date Nov 28, 2024
- Borealis AG
- Pauli Leskinen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER AND BLOW-MOLDED INTERM...
- Publication number 20240376236
- Publication date Nov 14, 2024
- UNIVATION TECHNOLOGIES, LLC
- Elva L. Lugo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYETHYLENE COPOLYMER FOR A FILM LAYER
- Publication number 20240336714
- Publication date Oct 10, 2024
- Borealis AG
- Jingbo WANG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYMERS OF VINYLCYCLOBUTANE AND PROCESSES FOR MAKING SAME
- Publication number 20240317905
- Publication date Sep 26, 2024
- EXXONMOBIL CHEMICAL PATENTS INC.
- Nikola S. Lambic
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR DETERMINING COMPRESSIVE CHARACTER OF OLEFIN POLYMERISATI...
- Publication number 20240302256
- Publication date Sep 12, 2024
- Borealis AG
- Pascal CASTRO
- G01 - MEASURING TESTING
Information Patent Application
PROCESS FOR PRODUCING POLYETHYLENE POLYMERS
- Publication number 20240294682
- Publication date Sep 5, 2024
- Borealis AG
- Pascal CASTRO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
MODIFICATIONS OF SULFATED BENTONITES AND USES THEREOF IN METALLOCEN...
- Publication number 20240279366
- Publication date Aug 22, 2024
- Chevron Phillips Chemical Company LP
- Max P. McDaniel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS FOR THE...
- Publication number 20240247085
- Publication date Jul 25, 2024
- Chevron Phillips Chemical Company LP
- Qing Yang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
HYBRID SUPPORTED METALLOCENE CATALYST AND METHOD FOR PREPARING POLY...
- Publication number 20240209126
- Publication date Jun 27, 2024
- LG CHEM, LTD.
- Byung Seok KIM
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
OLEFIN-BASED POLYMER, FILM PREPARED THEREFROM, AND PREPARATION METH...
- Publication number 20240132639
- Publication date Apr 25, 2024
- Hanwha Solutions Corporation
- Jisong JO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyethylene Resin Composition and Film Comprising the Same
- Publication number 20240109987
- Publication date Apr 4, 2024
- LG CHEM, LTD.
- Hyun Mook Jeong
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
POLYETHYLENE FOR PREPARING FIBER AND PREPARATION METHOD OF THE SAME
- Publication number 20240101729
- Publication date Mar 28, 2024
- LG CHEM, LTD.
- Christine Jisoo SONG
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Improved In-Situ MAO Derived Silica Supported Single-Site Metalloce...
- Publication number 20240092947
- Publication date Mar 21, 2024
- EXXONMOBIL CHEMICAL PATENTS INC.
- Lubin LUO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PREPARING CATALYSTS AND CATALYST COMPOSITIONS
- Publication number 20240084051
- Publication date Mar 14, 2024
- FORMOSA PLASTICS CORPORATION, U.S.A.
- Michael D. Jensen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESSES FOR MAKING AND USING SLURRY CATALYST MIXTURES
- Publication number 20240066514
- Publication date Feb 29, 2024
- EXXONMOBIL CHEMICAL PATENTS INC.
- Valentin P. MUNOZ
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS FOR POLYMERIZATION OF POLYPROPYLENE USING ZIEGLER-NATTA PRO...
- Publication number 20240067765
- Publication date Feb 29, 2024
- SABIC Global Technologies B.V.
- Martin Alexander ZUIDEVELD
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESSES FOR POLYMERIZING ONE OR MORE OLEFINS
- Publication number 20240059801
- Publication date Feb 22, 2024
- EXXONMOBIL CHEMICAL PATENTS INC.
- Ryan W. IMPELMAN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
OLEFIN-BASED POLYMER AND METHOD FOR PREPARING THE SAME
- Publication number 20240059816
- Publication date Feb 22, 2024
- Hanwha Solutions Corporation
- Sung Dong KIM
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
OLEFINIC POLYMER, AND METHOD FOR PREPARING SAME
- Publication number 20240043588
- Publication date Feb 8, 2024
- Hanwha Solutions Corporation
- Jisong JO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS FOR THE...
- Publication number 20240043577
- Publication date Feb 8, 2024
- Chevron Phillips Chemical Company LP
- Qing Yang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
TRANSITION METAL COMPOUND, CATALYST COMPRISING SAME, AND METHOD FOR...
- Publication number 20240010760
- Publication date Jan 11, 2024
- Hanwha Solutions Corporation
- Won Jong LEE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
MODIFIED POLYETHYLENE RESINS AND PROCESS FOR MAKING THE SAME
- Publication number 20240010772
- Publication date Jan 11, 2024
- DOW GLOBAL TECHNOLOGIES LLC
- Alexander Williamson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Toluene Free Supported Methylalumoxane Precursor
- Publication number 20240010660
- Publication date Jan 11, 2024
- EXXONMOBIL CHEMICAL PATENTS INC.
- Francis C. RIX
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METALLOCENE POLYPROPYLENE PREPARED USING AROMATIC SOLVENT-FREE SUPP...
- Publication number 20230416418
- Publication date Dec 28, 2023
- EXXONMOBIL CHEMICAL PATENTS INC.
- Nikola S. LAMBIC
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Non-Aromatic Hydrocarbon Soluble Olefin Polymerization Catalysts an...
- Publication number 20230406967
- Publication date Dec 21, 2023
- EXXONMOBIL CHEMICAL PATENTS INC.
- Catherine A. Faler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

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Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Processes for preparing metallocene-based catalyst systems for the...

Process for preparing a catalyst for olefin polymerization

Process for preparing catalysts and catalyst compositions

Transition metal compound and catalyst composition comprising the same

Controlling long-chain branch content with dual activator-supports

Continuous process for metallocene preliminary polymerization for g...

On-line adjustment of catalysts by trim and olefin polymerization

Polyethylene having high pressure resistance and crosslinked polyet...

Bimodal polyethylene copolymer composition and pipe made thereof

Olefin polymerization method using antistatic agent for metallocene...

Processes for preparing metallocene-based catalyst systems with an...

Modifications of sulfated bentonites and uses thereof in metallocen...

Polyethylene resins

Processes for preparing metallocene-based catalyst systems for the...

Transition metal compound for a catalyst for olefin polymerization...

Dual catalyst composition

Polyethylene resin composition, laminate, and medical container

Catalyst for olefin polymerization

Processes for preparing metallocene-based catalyst systems for the...

Polyethylene composition

Catalyst composition and method for preparing polyolefin using the...

Process for preparing catalysts and catalyst compositions

Catalysts

Power cable polymer composition comprising thermoplastic and having...

Metallocene-supported catalyst and method of preparing polyolefin u...

High melt flow polypropylene homopolymers for fiber applications

Olefin polymer and preparation method thereof

Supported catalyst systems and processes for use thereof

Methods for determining transition metal compound concentrations in...

Catalyst systems and polymerization processes for using the same

Patents Applicationslast 30 patents

CATALYST FOR OLEFIN POLYMERIZATION INCLUDING HYBRID CATALYST COMPOS...

HIGH MELT FLOW POLYPROPYLENE COMPOSITION

POLYOLEFIN HAVING EXCELLENT PROCESSABILITY AND PROCESS FOR PREPARIN...

SUPPORTED CATALYST SYSTEMS CONTAINING A CARBON BRIDGED, ANTHRACENYL...

CONTROLLING LONG-CHAIN BRANCH CONTENT WITH DUAL ACTIVATOR-SUPPORTS

PROCESS FOR PRODUCING A PROPYLENE COPOLYMER

BIMODAL POLY(ETHYLENE-CO-1-ALKENE) COPOLYMER AND BLOW-MOLDED INTERM...

POLYETHYLENE COPOLYMER FOR A FILM LAYER

POLYMERS OF VINYLCYCLOBUTANE AND PROCESSES FOR MAKING SAME

METHOD FOR DETERMINING COMPRESSIVE CHARACTER OF OLEFIN POLYMERISATI...

PROCESS FOR PRODUCING POLYETHYLENE POLYMERS

MODIFICATIONS OF SULFATED BENTONITES AND USES THEREOF IN METALLOCEN...

PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS FOR THE...

HYBRID SUPPORTED METALLOCENE CATALYST AND METHOD FOR PREPARING POLY...

OLEFIN-BASED POLYMER, FILM PREPARED THEREFROM, AND PREPARATION METH...

Polyethylene Resin Composition and Film Comprising the Same

POLYETHYLENE FOR PREPARING FIBER AND PREPARATION METHOD OF THE SAME

Improved In-Situ MAO Derived Silica Supported Single-Site Metalloce...

PROCESS FOR PREPARING CATALYSTS AND CATALYST COMPOSITIONS

PROCESSES FOR MAKING AND USING SLURRY CATALYST MIXTURES

PROCESS FOR POLYMERIZATION OF POLYPROPYLENE USING ZIEGLER-NATTA PRO...

PROCESSES FOR POLYMERIZING ONE OR MORE OLEFINS

OLEFIN-BASED POLYMER AND METHOD FOR PREPARING THE SAME

OLEFINIC POLYMER, AND METHOD FOR PREPARING SAME

PROCESSES FOR PREPARING METALLOCENE-BASED CATALYST SYSTEMS FOR THE...

TRANSITION METAL COMPOUND, CATALYST COMPRISING SAME, AND METHOD FOR...

MODIFIED POLYETHYLENE RESINS AND PROCESS FOR MAKING THE SAME

Toluene Free Supported Methylalumoxane Precursor

METALLOCENE POLYPROPYLENE PREPARED USING AROMATIC SOLVENT-FREE SUPP...

Non-Aromatic Hydrocarbon Soluble Olefin Polymerization Catalysts an...