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Class Information
Number: 526/104
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) > Group vib metal oxide (cr, mo, w)
Description: Subject matter wherein the specified material contains an oxide of a Group VIB metal, i.e., Cr, Mo, W.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8124698 |
Diene polymerisation |
Feb. 28, 2012 |
| 8088870 |
Methods for applying solution catalysts to reactor surfaces |
Jan. 3, 2012 |
| 7956138 |
Catalyst system for olefin polymerization and polymers produced therefrom |
Jun. 7, 2011 |
| 7951881 |
Polyethylene film having improved barrier properties and methods of making same |
May. 31, 2011 |
| 7915357 |
Blow molding polyethylene resins |
Mar. 29, 2011 |
| 7910669 |
Methods of preparing a polymerization catalyst |
Mar. 22, 2011 |
| 7851400 |
Multimodal polyethylene obtained with multilayer chromium catalyst |
Dec. 14, 2010 |
| 7491776 |
Polymerization process |
Feb. 17, 2009 |
| 7381778 |
Method of preparing a treated support |
Jun. 3, 2008 |
| 7375169 |
Method for catalyst preparation and improved polyethylene blow molding resin |
May. 20, 2008 |
| 7368516 |
Catalyst for trimerization of ethylene and process for trimerizing ethylene using the catalyst |
May. 6, 2008 |
| 7271122 |
Multimodal polyethylene obtained with multilayer chromium catalyst |
Sep. 18, 2007 |
| 7271124 |
Process to produce polymers |
Sep. 18, 2007 |
| 7262259 |
Method of preparing a treated support |
Aug. 28, 2007 |
| 7250474 |
Physical blends of polyethylenes |
Jul. 31, 2007 |
| 7232551 |
Fluidized bed method and reactor for the treatment of catalysts and catalyst carriers |
Jun. 19, 2007 |
| 7214642 |
Methods of preparing active chromium/alumina catalysts via treatment with sulfate |
May. 8, 2007 |
| 7202313 |
Chromium-based catalysts in mineral oil for production of polyethylene |
Apr. 10, 2007 |
| 6989344 |
Supported chromium oxide catalyst for the production of broad molecular weight polyethylene |
Jan. 24, 2006 |
| 6982238 |
Supported catalyst |
Jan. 3, 2006 |
| 6855781 |
Process to produce polymers |
Feb. 15, 2005 |
| 6833416 |
Methods of polymerizing olefin monomers with mixed catalyst systems |
Dec. 21, 2004 |
| 6815511 |
Continuous withdrawal from high solids slurry polymerization |
Nov. 9, 2004 |
| 6806324 |
High solids slurry polymerization using heat exchange to condense the flashed diluent |
Oct. 19, 2004 |
| 6747085 |
Conjugated diene polymer and rubber composition |
Jun. 8, 2004 |
| 6743869 |
High polymer solids slurry polymerization employing 1-olefin comonomer |
Jun. 1, 2004 |
| 6734131 |
Heterogeneous chromium catalysts and processes of polymerization of olefins using same |
May. 11, 2004 |
| 6689829 |
Process for imparting improved whiteness to polyolefin resins |
Feb. 10, 2004 |
| 6670302 |
High pore volume polyolefin catalyst |
Dec. 30, 2003 |
| 6657023 |
Polymerization process |
Dec. 2, 2003 |
| 6642324 |
Process that produces polymers |
Nov. 4, 2003 |
| 6632897 |
Use of nano-scaled metal oxide particles as polymerization catalysts |
Oct. 14, 2003 |
| 6600011 |
Process for purification and drying of polymer hydrogels |
Jul. 29, 2003 |
| 6583241 |
Process for making MVTR resin |
Jun. 24, 2003 |
| 6531565 |
MVTR resin produced with post-titanated Cr/Si/Ti catalyst |
Mar. 11, 2003 |
| 6528565 |
Process for imparting improved whiteness to polyolefin resins |
Mar. 4, 2003 |
| 6518375 |
Catalyst for the production of ethylene polymer and process for producing ethylene polymer |
Feb. 11, 2003 |
| 6495638 |
Process to produce polymers |
Dec. 17, 2002 |
| 6489428 |
Titanated chromium-based catalysts to produce polyethylene |
Dec. 3, 2002 |
| 6441110 |
Method for producing halogen-free reactive polyisobutene |
Aug. 27, 2002 |
| 6417131 |
Production of polyethylene having a broad molecular weight distribution |
Jul. 9, 2002 |
| 6384154 |
Preparation of halogen-free, reactive polyisobutene |
May. 7, 2002 |
| 6348635 |
Start-up polymerization process |
Feb. 19, 2002 |
| 6265501 |
Treatment of metathesis catalysts for olefins in a vibratory helicoidal conveyor |
Jul. 24, 2001 |
| 6255418 |
Catalysts containing organochromium compounds and their use for polymerizing alkenes |
Jul. 3, 2001 |
| 6245866 |
Production of polyethlene |
Jun. 12, 2001 |
| 6242543 |
Process for producing polyethylenes having a broad molecular weight distribution, and a catalyst system used thereby |
Jun. 5, 2001 |
| 6239235 |
High solids slurry polymerization |
May. 29, 2001 |
| 6204346 |
Polymerization process |
Mar. 20, 2001 |
| 6201077 |
Process that produces polymers |
Mar. 13, 2001 |
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