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Class Information
Number: 526/124.5
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Polymers from only ethylenic monomers or processes of polymerizing, polymerizable compositions containing only ethylenic monomers as reactants or processes of preparing > Polymerizing in the presence of a specified material other than monomer > Material contains transition metal or compound thereof > Material contains compound of group ia (li, na, k, rb, cs, fr) or group iia (be, mg, ca, sr, ba, ra) metal wherein ia or iia metal is not bonded to hydrogen or to carbon > Contains nontransition elemental metal, hydride thereof, or carbon to non-transition metal atom bond > Contains a magnesium compound as the group iia metal compound > Contains at least one additional specified material > Contains si or al inorganic oxygen-containing compound
Description: Subject matter wherein the additional specified material is an inorganic compound that contains oxygen and silicon or oxygen and aluminum.

Sub-classes under this class:

Class Number Class Name Patents
526/124.6 Contains organic non-metal containing b, si, n, p, or chalcogen material 212

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8173755 Ultra high molecular weight ethylene copolymer powder May. 8, 2012
8076262 Production of broad molecular weight polyethylene Dec. 13, 2011
8044160 Polyethylene composition for injection molded caps and closure articles Oct. 25, 2011
7935651 Method for preparing a Ziegler-Natta catalyst May. 3, 2011
7897710 Bimodal polyethylene film Mar. 1, 2011
7884163 Silica-coated alumina activator-supports for metallocene catalyst compositions Feb. 8, 2011
7786237 Polyethylene materials prepared using mixed ziegler-natta catalysts systems Aug. 31, 2010
7718747 Fiber and process for obtaining same from high-modulus, extrudable polyethylene May. 18, 2010
7435370 Process of making a fiber Oct. 14, 2008
7405176 Solid main catalyst component for ethylene polymerization, a process for preparing the same and a catalyst containing the same Jul. 29, 2008
7326760 Production of broad molecular weight polyethylene Feb. 5, 2008
7300902 Catalyst for polymerization of ethylene, preparation thereof and use of the same Nov. 27, 2007
7282546 Cocatalysts for reduction of production problems in metallocene-catalyzed polymerizations Oct. 16, 2007
7256150 Preparation of olefin polymerization catalyst component Aug. 14, 2007
7244794 Method for producing propylene polymer having a very high melt-flowability Jul. 17, 2007
7211535 Enhanced polyolefin catalyst May. 1, 2007
7022795 Highly crystalline propylene homopolymers Apr. 4, 2006
6884746 Catalysts for olefin polymerization and method of olefin polymerization using the same Apr. 26, 2005
6861385 Process for the preparation of a spherical support comprising a Mg dihalide Mar. 1, 2005
6841498 Catalyst system for ethylene (co)polymerization Jan. 11, 2005
6703455 Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use Mar. 9, 2004
6686433 Dual donor catalyst system for the polymerization of olefins Feb. 3, 2004
6664208 Modified aluminum oxy compound, polymerization catalyst and process for producing olefin polymer and alkenyl aromatic hydrocarbon polymer Dec. 16, 2003
6569964 Alumoxane-enhanced, supported Ziegler-Natta catalysts, methods of making same, processes of using same and polymers produced therefrom May. 27, 2003
6544920 Components and catalysts for the polymerization of olefins Apr. 8, 2003
6486089 Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution Nov. 26, 2002
6433108 Catalytic component and its use in olefin polymerization Aug. 13, 2002
6410475 Catalyst intended for the polymerization of olefins, process for its manufacture and use Jun. 25, 2002
6339036 Low aluminum and magnesium Z-N solution catalysts Jan. 15, 2002
6333388 Aluminum compound-containing solid catalyst component, catalyst for olefin polymerization and method for producing olefin polymer Dec. 25, 2001
6313225 Catalyst for olefin (co-)polymerization and method for producing the same Nov. 6, 2001
6313227 Propylene-ethylene block copolymer, resin composition, and blow-molded article Nov. 6, 2001
6303715 Method for polymerization and copolymerization of alpha-olefin Oct. 16, 2001
6300434 Propylene-ethylene copolymers made from three different constituents Oct. 9, 2001
6291384 High activity catalyst prepared with alkoxysilanes Sep. 18, 2001
6288180 Process for the polymerization of .alpha.-olefins, a catalyst used in the polymerization and its preparation Sep. 11, 2001
6225420 Procatalyst and process for the preparation of a multimodal ethylene polymer May. 1, 2001
6221974 Process for the preparation of creep-resistant polypropylene block copolymers Apr. 24, 2001
6130300 Low aluminum and magnesium Z-N solution catalysts Oct. 10, 2000
6111039 Dual donor catalyst system for the polymerization of olefin Aug. 29, 2000
6100353 Supported metallocene catalyst systems Aug. 8, 2000
6087459 Polymeric materials formed using blends of electron donors Jul. 11, 2000
6043326 Process for copolymerizing ethene and alpha-olefins Mar. 28, 2000
6034186 Olefin polymerization processes and products thereof Mar. 7, 2000
6018006 Process for preparing an ethylene polymerization catalyst and ethylene polymerization process Jan. 25, 2000
6013742 Process for producing improved random propylene copolymers Jan. 11, 2000
5962595 Blend of high-molecular-weight polypropylene and high-molecular weight ethylene-propylene copolymer with broad molecular weight distribution Oct. 5, 1999
5955554 Process for polymerization and copolymerization of olefins Sep. 21, 1999
5925587 Supported polymerization catalyst component and system, Polymerization process using same for the production of ultra-fine particle size resins with improved crystallization rates Jul. 20, 1999
5804679 Process for preparing polyolefins Sep. 8, 1998

1 2 3

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