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Class Information
Number: 526/96
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 transition metal oxide (other than peroxide) > Contains elemental transition metal or a non-oxide compound of a transition metal
Description: Subject matter wherein the specified material contains at least two transition metal atoms, one of said transitional metal atoms being in elemental form or as part of a nonbinary oxide compound.










Sub-classes under this class:

Class Number Class Name Patents
526/97 Contains non-transition elemental metal, hydride thereof, or carbon to non-transition metal atom bond 118


Patents under this class:
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Patent Number Title Of Patent Date Issued
8541520 Method of making high-density polyethylene with titania-iron nanofillers Sep. 24, 2013
8436091 Nitrile rubbers May. 7, 2013
8404788 Atom transfer radical polymerization process Mar. 26, 2013
8232357 Catalytic composition for producing 1-alkene and acrylates copolymer and method for producing 1-alkene and acrylates copolymer Jul. 31, 2012
7893174 Atom transfer radical polymerization process Feb. 22, 2011
7632901 Catalyst system and process Dec. 15, 2009
6699813 Lanthanide-based catalyst composition for the manufacture of polydienes Mar. 2, 2004
6649711 Process for preparing vinylic polymers with catalyst system containing metal complex and Lewis acid Nov. 18, 2003
6639029 Process for continuous synthesis of polymer compositions as well as use of same Oct. 28, 2003
6632896 Ethylene polymerization Oct. 14, 2003
6600011 Process for purification and drying of polymer hydrogels Jul. 29, 2003
6573344 Propylene polymerization process Jun. 3, 2003
6534605 Living polymerization process Mar. 18, 2003
6489428 Titanated chromium-based catalysts to produce polyethylene Dec. 3, 2002
6384154 Preparation of halogen-free, reactive polyisobutene May. 7, 2002
6265500 Production of polyethylene having improved mechanical properties Jul. 24, 2001
6214947 Production of polyethylene for blow moulding Apr. 10, 2001
6200920 Titanated chromium-based catalysts to produce polyethylene Mar. 13, 2001
6069108 Catalyst supports metallacene catalysts and their use for the preparation of polyolefins O May. 30, 2000
5965675 Polymerization processes Oct. 12, 1999
5916982 Process for the production of polyolefins Jun. 29, 1999
5849852 Support for catalysts, process for the manufacture of a precursor gel of a support for catalysts, catalyst for the polymerization of olefins and process for the polymerization of olefins by me Dec. 15, 1998
5786431 Process for olefin polymerization Jul. 28, 1998
5686542 Process for the preparation of branched low-pressure polyethylene, new low-pressure polyethylenes, and preformed bifunctional catalysts Nov. 11, 1997
5648439 Process for producing polyolefins Jul. 15, 1997
5641842 Ethylene copolymerization process Jun. 24, 1997
5616529 Process for the preparation of branched low-pressure polyethylene, new low-pressure polyethylenes, and preformed bifunctional catalysts Apr. 1, 1997
5461126 Process of polymerizing olefins using organonickel catalyst compositions Oct. 24, 1995
5459203 Ethylene cone-shell polymer powders Oct. 17, 1995
5399622 System of chromium catalyst and yttrium catalyst, olefin polymerization process, and polymer Mar. 21, 1995
5200379 Olefin polymerization using supported pentadienyl derivative-transition metal complexes Apr. 6, 1993
5114990 Process for the production of pigment/plastic premixes May. 19, 1992
5104839 Method for producing olefin polymer blends utilizing a chromium-zirconium dual catalyst system Apr. 14, 1992
5075394 Olefin polymerization using supported pentadienyl derivative-transition metal complexes Dec. 24, 1991
5034364 Multiple chromium compound-containing catalyst composition and olefin polymerization therewith Jul. 23, 1991
5032651 Method for producing olefin polymer blends utilizing a chromium-zirconium dual catalyst system Jul. 16, 1991
4665263 Ethylene polymerization with polychromium catalysts and resulting polymer May. 12, 1987
4622371 Olefin polymerization Nov. 11, 1986
4619980 Polymerization catalyst, method of making and use therefor Oct. 28, 1986
4590246 Method of polymerizing olefins May. 20, 1986
4547557 Silica-titania cogel from two-step hydrolysis Oct. 15, 1985
4540758 Polymerization of ethylene with supported .pi. allyl chromium complexes Sep. 10, 1985
4505969 Oriented polypropylene with linear low density poly-ethylene copolymer coating Mar. 19, 1985
4442275 Polymerization process using catalyst having aqueous titanation of support with solubilized Ti(OR).sub.4 Apr. 10, 1984
4418187 Preparation of electrically conductive polymers Nov. 29, 1983
4405768 Polymerization process using chromium on a support treated with titanium polymer Sep. 20, 1983
4369295 Impregnated second valence chromium compound in supported catalyst Jan. 18, 1983
4345055 Polymerization with titanium impregnated silica-chromium catalysts Aug. 17, 1982
4331789 Polymerization using a selenium or tellurium treated catalyst May. 25, 1982
4325839 Impregnated second valence chromium compound in supported catalyst Apr. 20, 1982

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