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Class Information
Number: 526/124.2
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
Description: Subject matter wherein the specified material contains a magnesium compound having no carbon to magnesium or hydrogen to magnesium bonds.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7618913 |
Highly active alpha-olefin copolymerization catalyst system |
Nov. 17, 2009 |
| 7615602 |
Process for producing polypropylene film |
Nov. 10, 2009 |
| 7605215 |
Process for producing olefin copolymerization catalyst and process for producing olefin copolymer |
Oct. 20, 2009 |
| 7582712 |
Alpha-olefins polymerization catalyst |
Sep. 1, 2009 |
| 7566676 |
Preparation method of solid titanium catalyst for olefin polymerization |
Jul. 28, 2009 |
| 7560521 |
Components and catalysts for the polymerization of olefins |
Jul. 14, 2009 |
| 7531605 |
Process for producing polyolefin resin composition and polypropylene composition |
May. 12, 2009 |
| 7528091 |
Magnesium-containing carrier component and application to olefin polymerization |
May. 5, 2009 |
| 7521512 |
Catalyst composition and polymerization process using mixture of silane electron donors |
Apr. 21, 2009 |
| 7504464 |
Process for control of polymer fines in a gas-phase polymerization |
Mar. 17, 2009 |
| 7504352 |
Catalyst for propylene polymerization |
Mar. 17, 2009 |
| 7482413 |
Magnesium dichloride-alcohol adducts and catalyst components obtained therefrom |
Jan. 27, 2009 |
| 7473664 |
Formation of Ziegler-Natta catalyst |
Jan. 6, 2009 |
| 7470764 |
Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins |
Dec. 30, 2008 |
| 7468339 |
Diketonate complex-derived catalysts useful for preparing polyolefins |
Dec. 23, 2008 |
| 7465775 |
Process for the production of polypropylene using high yield Ziegler-Natta catalysts |
Dec. 16, 2008 |
| 7456126 |
Ziegler-natta catalyst for olefin polymerization including aryloxy group and method for polymerization of olefin using same |
Nov. 25, 2008 |
| 7449528 |
Supported catalyst containing active titanium in the homo, co-, and ter-polymerization of olefin-unsaturated compounds |
Nov. 11, 2008 |
| 7427653 |
Catalyst components for the polymerization of olefins |
Sep. 23, 2008 |
| 7420021 |
Self-extinguishing catalyst composition with monocarboxylic acid ester internal door and propylene polymerization process |
Sep. 2, 2008 |
| 7414095 |
Liquid phase process for polymerizing olefins |
Aug. 19, 2008 |
| 7402637 |
Method for producing a poly-1-olefin in the presence of a Ziegler catalyst |
Jul. 22, 2008 |
| 7399812 |
Silicon ether compounds and a method for the preparation thereof |
Jul. 15, 2008 |
| 7393910 |
Catalyst composition for ethylene polymerization |
Jul. 1, 2008 |
| 7388061 |
Solid catalyst component for polymerization of olefins, catalyst comprising the same and use thereof |
Jun. 17, 2008 |
| 7388060 |
Catalyst component for olefin (co)polymerization, preparation thereof, a catalyst comprising the same and use thereof |
Jun. 17, 2008 |
| 7384886 |
Methods of preparation of an olefin oligomerization catalyst |
Jun. 10, 2008 |
| 7378476 |
Olefin polymerization process in the presence of a radical generating system |
May. 27, 2008 |
| 7371802 |
Components and catalysts for the polymerization of olefins |
May. 13, 2008 |
| 7371806 |
Process for the preparation of ethylene copolymers |
May. 13, 2008 |
| 7368504 |
Method for the production of impact polystyrene |
May. 6, 2008 |
| 7365138 |
Pretreated and prepolymerized polyolefin catalyst, production thereof and method of use |
Apr. 29, 2008 |
| 7354981 |
Polyethylene catalyst and a process for preparing the same |
Apr. 8, 2008 |
| 7351778 |
Catalyst component for olefin polymerization and catalyst comprising the same |
Apr. 1, 2008 |
| 7348383 |
Spray-dried, mixed metal ziegler catalyst compositions |
Mar. 25, 2008 |
| 7332556 |
Crystalline polymers of propylene having improved processability in the molten state and process for their preparation |
Feb. 19, 2008 |
| 7329626 |
Ziegler-Natta catalyst, preparation, and use for the polymerization of alkenes |
Feb. 12, 2008 |
| 7326757 |
Supported catalyst for olefin polymerization |
Feb. 5, 2008 |
| 7323525 |
Process for the production of propylene copolymers |
Jan. 29, 2008 |
| 7316987 |
Components and catalysts for the polymerization of olefins |
Jan. 8, 2008 |
| 7307036 |
Highly active alpha-olefin polymerization catalyst |
Dec. 11, 2007 |
| 7265074 |
Single step process for the preparation of lower .alpha.-alkene polymerization heterogeneous solid catalyst |
Sep. 4, 2007 |
| 7256247 |
Polymerization of polyethylene having high molecular weight |
Aug. 14, 2007 |
| 7253132 |
Magnesium-containing carrier components and application thereof to olefin polymerization |
Aug. 7, 2007 |
| 7244794 |
Method for producing propylene polymer having a very high melt-flowability |
Jul. 17, 2007 |
| 7238637 |
Method for the preparation of olefin polymerization catalysts |
Jul. 3, 2007 |
| 7235614 |
Methods for injecting catalyst into a polymerization reactor |
Jun. 26, 2007 |
| 7232866 |
Ethylene polymer composition |
Jun. 19, 2007 |
| 7202191 |
Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins |
Apr. 10, 2007 |
| 7202314 |
Components and catalysts for the polymerization of olefins |
Apr. 10, 2007 |
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