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Class Information
Number: 526/125.3
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 organic non-metal containing b, si, n, p, or chalcogen material > Contains organic non-metal containing b or si material
Description: Subject matter wherein an organic material which contains boron or silicon but does not contain metal is present.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7618913 |
Highly active alpha-olefin copolymerization catalyst system |
Nov. 17, 2009 |
| 7619048 |
Method for producing propylene polymer using alkoxysilane compound containing trialkysilyl group in molecular structure |
Nov. 17, 2009 |
| 7619049 |
Cyclic organosilicon compounds as electron donors for polyolefin catalysts |
Nov. 17, 2009 |
| 7605215 |
Process for producing olefin copolymerization catalyst and process for producing olefin copolymer |
Oct. 20, 2009 |
| 7531607 |
Process for producing olefin polymers |
May. 12, 2009 |
| 7491670 |
Self limiting catalyst composition and propylene polymerization process |
Feb. 17, 2009 |
| 7470764 |
Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins |
Dec. 30, 2008 |
| 7465776 |
High crystallinity, high melt flow rate polypropylene |
Dec. 16, 2008 |
| 7452947 |
Silica-supported polymerization catalyst |
Nov. 18, 2008 |
| 7393806 |
Catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process |
Jul. 1, 2008 |
| 7381779 |
Self limiting catalyst composition with dicarboxylic acid ester internal donor and propylene polymerization process |
Jun. 3, 2008 |
| 7365136 |
High melt strength polypropylene |
Apr. 29, 2008 |
| 7351678 |
Catalyst systems for Ziegler-Natta propene polymerisation |
Apr. 1, 2008 |
| 7348381 |
High modulus, high ductility polyolefins |
Mar. 25, 2008 |
| 7345122 |
High stereospecific polybutylene polymer and highly active process for preparation thereof |
Mar. 18, 2008 |
| 7329714 |
Method of polymerizing propylene comprising olefin pre-polymerization step |
Feb. 12, 2008 |
| 7276463 |
Polymerization catalyst for .alpha.-olefins and process for production of .alpha.-olefin polymers therewith |
Oct. 2, 2007 |
| 7244794 |
Method for producing propylene polymer having a very high melt-flowability |
Jul. 17, 2007 |
| 7238758 |
Catalysts for polymerization or copolymerization of .alpha.-olefins, catalyst components thereof, and processes for polymerization of .alpha.-olefins with the catalysts |
Jul. 3, 2007 |
| 7202191 |
Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins |
Apr. 10, 2007 |
| 7193022 |
Method of polymerization and copolymerization of ethylene |
Mar. 20, 2007 |
| 7153803 |
High activity and good hydrogen response Ziegler-Natta polyethylene catalyst |
Dec. 26, 2006 |
| 7135532 |
Process for producing solid catalyst component and catalyst for .alpha.-olefin polymerization, and process for producing .alpha.-olefin polymer |
Nov. 14, 2006 |
| 7109143 |
Polymerization catalyst system using n-butymethyldimethoxysilane for preparation of polypropylene film grade resins |
Sep. 19, 2006 |
| 7071138 |
Solid catalyst component for olefin polymerization, catalyst for olefin polymerization and process for producing olefin polymer |
Jul. 4, 2006 |
| 7026421 |
Random propylene copolymers |
Apr. 11, 2006 |
| 6982237 |
Spray-dried polymerization catalyst and polymerization processes employing same |
Jan. 3, 2006 |
| 6841503 |
Process for producing solid catalyst component and catalyst for .alpha.-olefin polymerization, and process for producing .alpha.-olefin polymer |
Jan. 11, 2005 |
| 6825146 |
Olefin polymerization catalyst compositions and method of preparation |
Nov. 30, 2004 |
| 6800703 |
Method for preparing propylene polymers having broad molecular weight distribution |
Oct. 5, 2004 |
| 6799568 |
Process for the preparation of a catalyst component for the polymerization of an olefin |
Oct. 5, 2004 |
| 6750306 |
Hyperbranched polymers by coordination polymerization |
Jun. 15, 2004 |
| 6747103 |
High-stiffness propylene polymers and a process for the preparation thereof |
Jun. 8, 2004 |
| 6730753 |
Catalyst systems of the ziegler-natta type and a process for preparing them |
May. 4, 2004 |
| 6703455 |
Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use |
Mar. 9, 2004 |
| 6699814 |
Catalysts for the polymerization of olefins |
Mar. 2, 2004 |
| 6689849 |
Catalyst for bulk polymerization, catalyst for vapor phase polymerization, method of polymerization using these, and olefin polymer obtained with these |
Feb. 10, 2004 |
| 6689850 |
Process for the polymerization of olefins |
Feb. 10, 2004 |
| 6686433 |
Dual donor catalyst system for the polymerization of olefins |
Feb. 3, 2004 |
| 6657024 |
Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins |
Dec. 2, 2003 |
| 6630559 |
Propylene polymer, propylene block copolymer, process for preparing said polymer and said block copolymer, and propylene polymer composition |
Oct. 7, 2003 |
| 6630544 |
Propylene polymerization process with enhanced catalyst activity |
Oct. 7, 2003 |
| 6605562 |
Components and catalysts for the polymerization of olefins |
Aug. 12, 2003 |
| 6566464 |
Process for producing solid catalyst component and catalyst for .alpha.-olefin polymerization, and process for producing .alpha.-olefin polymer |
May. 20, 2003 |
| 6559250 |
Method of homo- or co-polymerization of .alpha.-olefin |
May. 6, 2003 |
| 6559249 |
Catalyst for producing an ultrahigh molecular weight polyethylene (UHWMP) and method for producing an UHWMP using the same |
May. 6, 2003 |
| 6545099 |
Propylene polymer and block copolymer |
Apr. 8, 2003 |
| 6537942 |
Olefin polymerization catalyst and process for preparing polypropylene and propylene block copolymer |
Mar. 25, 2003 |
| 6534606 |
Catalyst system for the Ziegler-Natta polymerization of olefins |
Mar. 18, 2003 |
| 6531553 |
Process for increasing molecular weight in polyolefins using Ziegler-Natta catalysts and lithium compounds |
Mar. 11, 2003 |
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