ClassID:

97761

C08F4/78 - CPC Classification

Classification description:

Polymerisation catalysts; Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from metals not provided for in group selected from refractory metals selected from chromium, molybdenum or tungsten

Recent Application in this class:
#1
20260139078
2026-05-21

AQUEOUS METHODS FOR TITANATING A CHROMIUM/SILICA CATALYST WITH AN ALKALI METAL

#2
20250368760
2025-12-04

Constrained Geometry Metal-Ligand Complexes and Use Thereof in Olefin Polymerization

#3
20250346688
2025-11-13

AQUEOUS METHODS FOR TITANATING A CHROMIUM/SILICA CATALYST WITH AN ALKALI METAL

#4
20250312772
2025-10-09

Methods for Making Supported Chromium Catalysts with Increased Polymerization Activity

#5
20250243298
2025-07-31

AQUEOUS METHODS FOR TITANATING A CHROMIUM/SILICA CATALYST WITH AN ALKALI METAL

#6
20250236687
2025-07-24

PARTICLE SIZE CONTROL OF SILYL CHROMATE CATALYSTS AND USES THEREOF IN FLUIDIZED BED REACTORS

#7
20250188201
2025-06-12

CATALYST FOR PHOTOCATALYTIC POLYMERIZATION REACTION, AND APPLICATION THEREOF

#8
20250051491
2025-02-13

ETHYLENE OLIGOMERIZATION CATALYST INCLUDING LIGAND COMPOUND, CATALYST COMPOSITION EMPLOYING SAME, AND METHOD FOR PRODUCING ETHYLENE OLIGOMER BY USING SAME

#9
20240399342
2024-12-05

Methods for Making Supported Chromium Catalysts with Increased Polymerization Activity

#10
20240383933
2024-11-21

Tethered Alkylidyne and Methods of Making the Same

#11
20240376232
2024-11-14

AQUEOUS METHODS FOR TITANATING A CHROMIUM/SILICA CATALYST WITH AN ALKALI METAL

#12
20240199768
2024-06-20

SYSTEMS AND TECHNIQUES FOR HEAT REMOVAL IN GAS PHASE POLYMERIZATION

#13
20240199513
2024-06-20

COMPOSITIONS CONTAINING 3,3,3-TRIFLUOROPROPENE (1243ZF) AND METHODS FOR MAKING AND USING THE COMPOSITIONS

#14
20240181437
2024-06-06

Modified supported chromium catalysts and ethylene-based polymers produced therefrom

#15
20240109984
2024-04-04

Catalysts for Olefin Metathesis, Methods of Preparation, and Processes for the use Thereof

#16
20240084052
2024-03-14

Aqueous methods for titanating a chromium/silica catalyst with an alkali metal

#17
20240043578
2024-02-08

Surfactant as Titanation Ligand

#18
20240001342
2024-01-04

Methods for making supported chromium catalysts with increased polymerization activity

#19
20230391615
2023-12-07

METAL HYDRIDES AND THEIR USE IN HYDROGEN STORAGE APPLICATIONS

#20
20230390718
2023-12-07

Catalyst slurry mixing process and system

#21
20230364595
2023-11-16

Modified supported chromium catalysts and ethylene-based polymers produced therefrom

#22
20230340166
2023-10-26

Aqueous methods for titanating a chromium/silica catalyst with an alkali metal

#23
20230285940
2023-09-14

Methods for making supported chromium catalysts with increased polymerization activity

#24
20230183390
2023-06-15

Production of polyethylene and ethylene oligomers from ethanol and the use of biomass and waste streams as feedstocks to produce the ethanol

#25
20230182121
2023-06-15

Modified supported chromium catalysts and ethylene-based polymers produced therefrom

#26
20230159669
2023-05-25

Methods for chromium catalyst activation using oxygen-enriched fluidization gas

#27
20230140414
2023-05-04

HIGH DENSITY POLYETHYLENE FOR RIGID ARTICLES

#28
20220347656
2022-11-03

Methods for making supported chromium catalysts with increased polymerization activity

#29
20220306773
2022-09-29

Surfactant as titanation ligand

#30
20220267485
2022-08-25

Methods for chromium catalyst activation using oxygen-enriched fluidization gas

#31
20220266231
2022-08-25

Modified supported chromium catalysts and ethylene-based polymers produced therefrom

#32
20220258146
2022-08-18

Catalyst for ring expansion metathesis polymerization of cyclic monomers

#33
20220135709
2022-05-05

Metallacyclopentadiene initiators for cyclic polymer synthesis from alkynes

#34
20220135708
2022-05-05

Aqueous titanation of cr/silica catalysts by the use of acetylacetonate and another ligand

#35
20220056167
2022-02-24

Functionalized cyclic polymers and methods of preparing same

#36
20220017364
2022-01-20

Metal hydrides and their use in hydrogen storage applications

#37
20210403616
2021-12-30

Surfactant as titanation ligand

#38
20210402383
2021-12-30

Light treatment of chromium catalysts and related catalyst preparation systems and polymerization processes

#39
20210395402
2021-12-23

Production of ring polymers from terminal alkynes by alkylidynes

#40
20210299618
2021-09-30

Catalyst slurry mixing process and system

#41
20210292446
2021-09-23

Amino acid chelates of titanium and use thereof in aqueous titanation of polymerization catalysts

#42
20210061832
2021-03-04

Phenoxyimine-Based Complexes and Related Ring-Opening Metathesis Polymerization Methods

#43
20210054112
2021-02-25

Surfactant as titanation ligand

#44
20200407488
2020-12-31

Flow controlled synthesis of bottlebrush macromolecules

#45
20200392265
2020-12-17

Amino acid chelates of titanium and use thereof in aqueous titanation of polymerization catalysts

#46
20200392264
2020-12-17

Aqueous titanation of Cr/silica catalysts by the use of acetylacetonate and another ligand

#47
20200392263
2020-12-17

Surfactant as titanation ligand

#48
20200392262
2020-12-17

Aqueous titanation of Cr/silica catalysts by the use of acetylacetonate and another ligand

#49
20200392261
2020-12-17

Amino acid chelates of titanium and use thereof in aqueous titanation of polymerization catalysts

#50
20200276566
2020-09-03

Catalyst for ring expansion metathesis polymerization of cyclic monomers

#51
20200087430
2020-03-19

Light treatment of chromium catalysts and related catalyst preparation systems and polymerization processes

#52
20200086307
2020-03-19

Modified supported chromium catalysts and ethylene-based polymers produced therefrom

#53
20190314798
2019-10-17

Method for preparation of homogenous catalyst for selective 1-hexene production

#54
20190169086
2019-06-06

Catalyst systems and ethylene oligomerization method

#55
20190084903
2019-03-21

CATALYTIC ETHENOLYSIS OF OPTIONALLY-FUNCTIONALIZED INTERNAL UNSATURATED OLEFINS

#56
20180305473
2018-10-25

Methods of preparing a catalyst

#57
20180179341
2018-06-28

Resin composition, microporous membrane, separator and secondary battery

#58
20180105636
2018-04-19

Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer

#59
20180044468
2018-02-15

Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, syndiotactic dicyclopentadiene ring-opening polymer, and production method for these

#60
20170312738
2017-11-02

Ligand compound, organic chromium compound, catalyst system for oligomerization of olefins, and method for oligomerizing olefins using the same

#61
20170305945
2017-10-26

Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins

#62
20170044275
2017-02-16

Methods of preparation of an olefin oligomerization catalyst

#63
20170037158
2017-02-09

Long chain branched polymers and methods of making same

#64
20170036910
2017-02-09

Metal hydrides and their use in hydrogen storage applications

#65
20160251455
2016-09-01

Methods of Preparation of an Olefin Oligomerization Catalyst

#66
20160168180
2016-06-16

Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins

#67
20160152645
2016-06-02

Transition metal carbene complex and method of producing the same

#68
20160053031
2016-02-25

Non-cyclopentadienyl-based chromium catalysts for olefin polymerization

#69
20160038900
2016-02-11

Process for catalyst activation

#70
20150224465
2015-08-13

Catalyst activator

#71
20150191554
2015-07-09

Chromium (III) catalyst systems with activator-supports

#72
20150152200
2015-06-04

Oligomerisation of olefinic compounds with reduced polymer formation

#73
20150148502
2015-05-28

Non-cyclopentadienyl-based chromium catalysts for olefin polymerization

#74
20150141592
2015-05-21

Bimodal polymerization process utilizing chromium/silica catalysts

#75
20150018502
2015-01-15

Method for ethylene oligomerization

#76
20150011382
2015-01-08

Ligand compound, chromium compound and catalyst system including the same

#77
20140309389
2014-10-16

Tridentate pincer ligand supported metal-alkylidyne and metallacycloalkylene complexes for alkyne polymerization

#78
20140221645
2014-08-07

Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins

#79
20140005034
2014-01-02

Method for preparing a catalyst composition for oligomerization of ethylene and respective catalyst composition pre-formation unit

#80
20130144017
2013-06-06

Methods of preparing a catalyst

#81
20130137839
2013-05-30

Long chain branched polymers and methods of making same

#82
20120309965
2012-12-06

Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins

#83
20120277386
2012-11-01

Process of melt index control

#84
20120077665
2012-03-29

Catalyst systems and polymer resins having improved barrier properties

#85
20110237763
2011-09-29

Systems and methods for fabricating polymers

#86
20090163681
2009-06-25

Fast activating catalyst

#87
20080097053
2008-04-24

Cyclopentadienyl complexes of group 6 substituted by silyl halides

#88
20070179051
2007-08-02

Preparation of supported catalysts for polymerization

#89
20060270811
2006-11-30

Catalytic composition and its preparation and use for preparing polymers from ethylenically unsaturated monomers

#90
18653014
2025-06-03

Particle size control of silyl chromate catalysts and uses thereof in fluidized bed reactors