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Browse by Category: Main > Chemistry
Class Information
Number: 502/120
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Catalyst or precursor therefor > Plural component system comprising a - group i to iv metal hydride or organometallic compound - and b - group iv to viii metal, lanthanide or actinde compound - (i.e., alkali metal, ag, au, cu, alkaline earth metal, be, mg, zn, cd, hg, sc, y, al, ga, in, tl, ti, zn, hf, ge, sn or pb hydride or organometallic compound and ti, zr, hf, ge, sn, pb, v, nb, ta, as, sb, bi, cr, mo, w, po, mn, tc, re, iron group, platinum group, atomic number 57 to 71 inclusive or atomic number 89 or higher compound) > Component a metal is group ia, iia or iiia and component b metal is group ivb to viib or viii (i.e., alkali metal, alkaline earth metal, be, mg, al, ga, in or tl and ti, zr, hf, v, nb, ta, cr, mo, w, mn, tc, re, iron group or platinum group) (e.g., ziegler catalyst, etc.) > And a third component c (i.e., an additive other than a saturated hydrocarbon or an aromatic hydrocarbon free of aliphatic or cycloaliphatic unsaturation) > Elemental oxygen or nonmetallic inorganic oxygen-containing material, other than water
Description: Composition in which the additive is oxygen, elemental or combined with a nonmetal other than organic carbon and excluding water.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8703886 Dual activator-support catalyst systems Apr. 22, 2014
8691715 Catalyst compositions for producing high Mz/Mw polyolefins Apr. 8, 2014
8680001 Preparation of supported catalyst systems containing reduced amounts of aluminoxanes Mar. 25, 2014
8598061 Catalysts for producing broad molecular weight distribution polyolefins in the absence of added hydrogen Dec. 3, 2013
8575284 Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins Nov. 5, 2013
8563671 Supported metallocene catalysts Oct. 22, 2013
8524626 Nano-linked metallocene catalyst compositions and their polymer products Sep. 3, 2013
8524627 Activating supports with controlled distribution of OH groups Sep. 3, 2013
8524844 Method of controlling polymer architecture Sep. 3, 2013
8501654 Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor Aug. 6, 2013
8450436 Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates May. 28, 2013
8435914 Mixed metal catalyst systems having a tailored hydrogen response May. 7, 2013
8435911 Hybrid catalyst composition for polymerization of olefins May. 7, 2013
8399375 Supported metallocene catalyst composition and a process for the preparation of polyolefin using the same Mar. 19, 2013
8394737 Preparation of activating supports Mar. 12, 2013
8354485 Aluminoxane catalyst activators derived from dialkylaluminum cation precursor agents, processes for making same, and use thereof in catalysts and polymerization of olefins Jan. 15, 2013
8338324 Activating supports based on phosphonium complexes Dec. 25, 2012
8329834 Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates Dec. 11, 2012
8324126 Process of preparation of catalytic support and supported metallocene catalysts for production of homopolymers and copolymers of ethylene with alfa-olefins, of high and ultra high molecular we Dec. 4, 2012
8314199 Homo- or co-polymers of ethylene with combination of processability and toughness properties Nov. 20, 2012
8304361 Reduced reactor fouling Nov. 6, 2012
8298978 Reactor continuity Oct. 30, 2012
8298977 Metallocene catalyst components supported on activating supports Oct. 30, 2012
8288487 Catalysts for producing broad molecular weight distribution polyolefins in the absence of added hydrogen Oct. 16, 2012
8273677 Production process of pre-polymerized polymerization catalyst component and addition polymer Sep. 25, 2012
8268944 Dual metallocene catalysts for polymerization of bimodal polymers Sep. 18, 2012
8258247 Catalyst component for polymerization of ethylene and process for producing ethylene polymer (2) Sep. 4, 2012
8242221 Half-metallocene catalyst compositions and their polymer products Aug. 14, 2012
8207280 Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor Jun. 26, 2012
8153545 Process for homo--or copolymerization of conjugated olefins Apr. 10, 2012
8138113 Dual metallocene catalysts for polymerization of bimodal polymers Mar. 20, 2012
8138285 Fluorinated impregnated catalyst systems and methods of forming the same Mar. 20, 2012
8110640 Half-metallocene catalyst compositions and their polymer products Feb. 7, 2012
8110518 Fluorinated transition metal catalysts and formation thereof Feb. 7, 2012
8076259 Process for the preparation of catalyst paste and products thereof Dec. 13, 2011
7960487 Dual metallocene catalysts for polymerization of bimodal polymers Jun. 14, 2011
7928172 Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins Apr. 19, 2011
7915194 Process for homo- or copolymerization of conjugated olefins Mar. 29, 2011
7915360 Supported catalyst for olefin polymerization using transition metal compound having phenylene-bridge, method for preparing the same, and method for preparing polyolefin using the same Mar. 29, 2011
7897539 Methods of preparing a polymerization catalyst Mar. 1, 2011
7884165 Half-metallocene catalyst compositions and their polymer products Feb. 8, 2011
7875568 Supported nonmetallocene olefin polymerization catalyst, preparation method and use thereof Jan. 25, 2011
7863213 Supported polymerization catalysts Jan. 4, 2011
7816296 Hindered polyalicyclic alkyl catalysts and their use in a gas-phase polymerization reactor Oct. 19, 2010
7811957 Type of catalytic materials based on active metal-hydrogen-electronegative element complexes involving hydrogen transfer Oct. 12, 2010
7790820 Acidic activator-supports and catalysts for olefin polymerization Sep. 7, 2010
7745568 Transfer vessel between flash tank and purge column Jun. 29, 2010
7741417 Preparation of polymerization catalyst activators utilizing indole-modified silica supports Jun. 22, 2010
7732542 Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching Jun. 8, 2010
7700513 Supported catalyst for olefin polymerization Apr. 20, 2010

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