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Class Information
Number: 526/125.7
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 compound containing only c, h and halogen atoms or only c and halogen atoms
Description: Subject matter wherein the additional specified material is a compound which contains only (1) carbon, hydrogen and halogen atoms, or (2) carbon and halogen atoms.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7488862 Process for the gas-phase (co-)polymerisation of olefins in a fluidised bed reactor Feb. 10, 2009
7300902 Catalyst for polymerization of ethylene, preparation thereof and use of the same Nov. 27, 2007
7060764 Method for polymerization and copolymerization of ethylene Jun. 13, 2006
7026265 Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use Apr. 11, 2006
6825146 Olefin polymerization catalyst compositions and method of preparation Nov. 30, 2004
6596891 Activating composition of metallocene complexes in the catalysis of (co)polymerization processes of olefins Jul. 22, 2003
6448348 Process for polymerizing olefins with supported Ziegler-Natta catalyst systems Sep. 10, 2002
6433108 Catalytic component and its use in olefin polymerization Aug. 13, 2002
6384159 Production of polyethylene with a titanium amide catalyst May. 7, 2002
6339036 Low aluminum and magnesium Z-N solution catalysts Jan. 15, 2002
6162773 Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents using a halohydrocarbon Dec. 19, 2000
6130300 Low aluminum and magnesium Z-N solution catalysts Oct. 10, 2000
6121393 Process for polymerizing alpha-olefins Sep. 19, 2000
6084042 Mixed titanium-vanadium catalysts for solution ethylene polymerization Jul. 4, 2000
6015779 Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents Jan. 18, 2000
5990251 Process for polymerising olefin with a Ziegler-Natta catalyst Nov. 23, 1999
5922632 Vanadium based components and catalysts for the polymerization of olefins and polymerization processes using the same Jul. 13, 1999
5696044 Method of producing a deposited catalyst for the polymerization of ethylene and copolymerization of ethylene with O-olefins Dec. 9, 1997
5612427 Catalyst for the polymerization of diolefins, method for its preparation, and its use for the preparation of polymers Mar. 18, 1997
5589555 Control of a solution process for polymerization of ethylene Dec. 31, 1996
5574116 Process for the preparation of a catalyst for the polymerization of olefins Nov. 12, 1996
5532326 Process for preparing elastomeric ethylene copolymers Jul. 2, 1996
5498676 Process for olefin polymerization Mar. 12, 1996
5320994 Process for preparing a catalyst for the polymerization of olefins Jun. 14, 1994
5318849 Polyolefin rubbers and process for their preparation Jun. 7, 1994
5264088 Catalytic composition for the polymerization of olefins and its process of preparation Nov. 23, 1993
5145922 Olefin polymerization catalysts Sep. 8, 1992
5118769 Manufacturing method of polyolefin Jun. 2, 1992
5081087 Olefin polymerization catalysts Jan. 14, 1992
5037908 Process for polymerization of butene-1 Aug. 6, 1991
4870040 Olefin polymerization catalysts from soluble magnesium alkoxides made from alkyl or aryl magnesium mixed with a branched or aromatic aldehyde Sep. 26, 1989
4870039 Olefin polymerization catalysts from soluble magnesium alkoxides made from mixed magnesium alkyls and aryls Sep. 26, 1989
4737555 Process for producing a catalyst component for polymerization of olefins Apr. 12, 1988
4699961 High efficiency catalysts for varying olefin polymer molecular weight distribution Oct. 13, 1987
4686265 Process for polymerization of olefins Aug. 11, 1987
4686199 Process for producing a catalyst component for polymerization of olefins Aug. 11, 1987
4678768 Catalyst component for polymerization of olefins Jul. 7, 1987
4613581 Catalyst component for polymerization of olefins P-998 Sep. 23, 1986
4603183 Hydrocarbon soluble catalyst supports and resultant polymerization catalysts Jul. 29, 1986
4595735 Catalyst component for polymerization of olefins Jun. 17, 1986
4593010 Polyethylene with broad molecular weight distribution Jun. 3, 1986
4590325 Catalyst component for polymerization of olefins May. 20, 1986
4549001 Olefin polymerization Oct. 22, 1985
4544648 Catalyst component for polymerization of olefins Oct. 1, 1985
4518706 Hydrocarbon soluble catalyst supports and resultant polymerization catalysts May. 21, 1985
4517307 Catalyst components for the polymerization of ethylene and of mixtures thereof with olefins and catalysts obtained therefrom May. 14, 1985
4511669 High efficiency catalysts for varying olefin polymer molecular weight distribution Apr. 16, 1985
4510342 High viscosity index synthetic oils and synthesis thereof Apr. 9, 1985
4485187 Process for producing ethylene polymers Nov. 27, 1984
4485186 Catalyst component for polymerization of olefins Nov. 27, 1984

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