| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526124900 |
Contains organic non-metal containing B, Si, N, P, or chalcogen material
| 54 |
| 526124500 |
Contains Si or Al inorganic oxygen-containing compound
| 13 |
| 526125700 |
Contains compound containing only C, H and halogen atoms or only C and halogen atoms | 5 |
| 20080249263 | Method for the Preparation of Olefin Polymerisation Catalyst - The invention is directed to a process for producing an olefin polymerization catalyst wherein a solution of a soluble magnesium complex containing an element of is Group 13 or 14 of the Periodic Table (IUPAC) is contacted with a halogen containing transition metal compound of Group 3 to 10 of the Periodic Table (IUPAC) to obtain a solid catalyst complex comprising as essential components Mg, said element of is Group 13 or 14 of the Periodic Table (IUPAC) and said transition metal compound. | 10-09-2008 |
| 20110077368 | CATALYST FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to catalysts systems for the polymerization of olefins CH | 03-31-2011 |
| 20110152483 | POLYOLEFIN PRODUCTION USING AN IMPROVED CATALYST SYSTEM - Polyolefin production using an improved catalyst system and, in particular, a method for production of a polyolefin is disclosed. One or more monomers are contacted with a catalyst system. The catalyst system includes titanium tetrachloride as a catalyst precursor and magnesium ethylate as a support for the catalyst precursor. The catalyst system also includes a hydrocarbyl aluminum cocatalyst represented by the formula R | 06-23-2011 |
| 20130338321 | Process for Improving Bulk Density with Multi-Contact Procatalyst and Product - Disclosed herein are processes for preparing procatalyst compositions which include multiple contact steps in the presence of a substituted phenylene aromatic diester and at least one other internal electron donor. The multi-contact procatalyst compositions produced from the present processes improve polymer properties and polymerization parameters. In particular, the present multi-contact procatalyst compositions improve polymer bulk density. | 12-19-2013 |
| 20160376384 | ZIEGLER-NATTA CATALYST SYNTHESIS AND PROCESS THEREOF - The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system. | 12-29-2016 |
| 526124700 |
Contains at least two non-transition elemental metals, hydrides thereof, or compounds containing carbon to non-transition metal atom bond, or mixtures thereof | 5 |
| 20090186994 | OLEFIN POLYMERISATION CATALYST - The present invention relates to particulate olefin polymerisation catalyst components comprising an alkaline earth metal, a compound of a transition metal and an electron donor, characterized in that the catalyst particle size distribution of the catalyst component is essentially monomodal and has a SPAN value below 1.2, where SPAN is defined as: (Particle diameter at 90% cumulative size)−(Particle diameter at 10% cumulative size)/(Particle diameter at 50% cumulative size). The particulate olefin polymerisation catalyst components of the present invention are provided by a process which comprises preparing a solution of a complex of an alkaline earth metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium, reacting said complex in the solution form with a compound of a transition metal to produce a dispersion, wherein the dispersed phase predominantly contains the alkaline earth metal in said complex, and solidifying said dispersed phase to obtain said catalyst component, and is characterized in that a second organic liquid medium is added to the reactor after mixing the alkaline earth metal complex with the transition metal compound. | 07-23-2009 |
| 20110046326 | CATALYST SYSTEM FOR POLYMERIZATION OF OLEFINS - The invention relates to a catalyst system for polymerization of olefins, the catalyst system comprising a titanium-containing procatalyst carrying internal electron donor(s), an organoaluminium cocatalyst and a mixture of external electron donors, the mixture comprising a carboxylic acid ester or derivatives thereof, an alkoxy silane and a nitrogen based compound. The invention also relates to a process for polymerization of olefin(s) and to the polyolefin synthesized by the process. | 02-24-2011 |
| 20080312391 | Hydrogen response through catalyst modification - The present invention provides a process for preparing a catalyst useful in gas phase polymerization of olefins wherein the hydrogen response of the catalyst can be improved by using a ketone as the electron donor in the catalyst. The catalyst consists of compounds of Ti, Mg, Al and a ketone preferably supported on an amorphous support. | 12-18-2008 |
| 20090163680 | Ziegler-Natta catalyst for particle size control - Catalyst components, methods of forming catalyst compositions, polymerization processes utilizing the catalyst compositions and polymers formed thereby are described herein. The methods generally include providing a magnesium dialkoxide compound, contacting the magnesium dialkoxide compound with a first agent to form a solution of a reaction product “A | 06-25-2009 |
| 20120208969 | ZIEGLER-NATTA CATALYSTS DOPED WITH NON-GROUP IV METAL CHLORIDES - Ziegler-Natta catalysts, processes of forming the same and using the same are described herein. The process generally includes contacting a metal component with a magnesium dihalide support material to form a Ziegler-Natta catalyst precursor; contacting the support material with a dopant including a non-Group IV metal halide to form a doped catalyst precursor; and activating the doped catalyst precursor by contact with an organoaluminum compound to form a Ziegler-Natta catalyst. | 08-16-2012 |
| 526125800 |
Contains at least one inorganic material having no H to metal bonds | 2 |
| 20090312507 | PROCESS FOR THE PRODUCTION OF PROPYLENE POLYMERS HAVING A LOW ASH CONTENT - The present invention relates of a polymerization process for the production of propylene polymers with low ash content using a Ziegler-Natta catalyst with a diether as internal electron donor. The present invention also relates to the propylene polymers produced with said process as well as to films, fibers and nonwovens made with said propylene polymer. | 12-17-2009 |
| 20120329963 | Catalyst Components for the Polymerization of Olefins - The present invention relates to catalysts component for the polymerization of ethylene and its mixtures with olefins CH | 12-27-2012 |
| Entries |
| Document | Title | Date |
|---|
| 20080227936 | Supported Nonmetallocene Olefin Polymerization Catalyst, Preparation Method and Use Thereof - The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method. The present invention further relates to the use of the supported nonmetallocene olefin polymerization catalyst in an olefin polymerization and an olefin copolymerization between two or more different olefins. In one specific embodiment, the present invention relates to the use of the supported nonmetallocene olefin polymerization catalyst in a slurry ethylene polymerization. The present invention provides a new type of catalyst that improves the polymer morphology, increases polymer bulk density and enhances polymerization activity. | 09-18-2008 |
| 20090286942 | CATALYST FLOW - Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component and an antistatic agent. Also disclosed are methods of making a polyolefin involving contacting an olefin with a catalyst system containing an antistatic agent. The use of the antistatic agent added to the catalyst system can improve flowability and/or dispersibility of the catalyst system. | 11-19-2009 |
| 20090306315 | Process for Preparing a Catalyst Component for Propylene Polymerization - The invention relates to a process for preparing a polymerization catalyst component wherein a solid compound with formula Mg(OR | 12-10-2009 |
| 20090306316 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS AND CATALYSTS THEREFROM OBTAINED - A catalyst component comprising Ti, Mg, Al, Cl, and optionally OR | 12-10-2009 |
| 20100190938 | CATALYST COMPONENT, CATALYST FOR OLEFIN POLYMERIZATION, AND PROCESS FOR PRODUCING OLEFIN POLYMER USING CATALYST - A polymer exhibiting high catalytic activity, good hydrogen response and high three-dimensional regularity can be obtained with high yield by polymerizing an olefin in the presence of a catalyst for olefin polymerization which is composed of a solid catalyst component (A) containing magnesium, titanium, a halogen and an electron-donating compound, an organic aluminum compound (B) represented by the following general formula: R | 07-29-2010 |
| 20100298509 | METHOD OF PRODUCING DIALKOXYMAGNESIUM SUPPORT FOR CATALYST FOR OLEFIN POLYMERIZATION, METHOD OF PRODUCING CATALYST FOR OLEFIN POLYMERIZATION USING THE SAME AND METHOD OF POLYMERIZING OLEFIN USING THE SAME - Disclosed are a method for producing a dialkoxymagnesium support for catalyst for olefin polymerization, a method of producing catalyst for olefin polymerization using the dialkoxymagnesium support and a method of polymerizing olefin using the catalyst. By using the method for producing a support according to the present invention, the content of large particles in the dialkoxymagnesium support can be controlled and the particle can have spherical shape, so the catalyst produced by using the support have high activity and stereoregularity, and high bulk density, thereby making it possible to be applied to the commercial processes. | 11-25-2010 |
| 20110034649 | PROCESS FOR THE PRODUCTION OF A PROPYLENE POLYMER HAVING A BROAD MOLECULAR WEIGHT DISTRIBUTION AND A LOW ASH CONTENT - The present invention relates to a process for the production of propylene homo- and copolymers having a broad molecular weight distribution and a low ash content, with “ash” denoting aluminium as well as residues of catalyst, cocatalyst or any additive, such as titanium (Ti) or silicium (Si) derivatives, used in the production of propylene polymers. The propylene polymers of the present invention are useful to make films, such as capacitor films, as well as fibers and nonwovens, such as for example staple fibers, spunbond nonwovens, meltblown nonwovens. | 02-10-2011 |
| 20110152482 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS AND CATALYSTS THEREFROM OBTAINED - A solid catalyst component comprising Ti, Mg, halogen and a couple of monofunctional electron donor compounds MD1 and MD2 selected from esters and ethers, said donors being present in amounts such that the molar ratio MD1/MD2 ranges from 20 to 800. The so obtained catalyst component when converted into a catalyst is able to produce ethylene polymers with good morphological properties even under drastic polymerization conditions. | 06-23-2011 |
| 20140221583 | SOLID CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, CATALYST FOR OLEFIN POLYMERIZATION, AND METHOD FOR PRODUCING OLEFIN POLYMER - An olefin polymer that is obtained using an olefin polymerization catalyst that includes a solid catalyst component for olefin polymerization that includes titanium, magnesium, a halogen, and an ester compound (A) represented by the following formula (1): R | 08-07-2014 |
| 20140316083 | PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A pre-polymerized catalyst component for the polymerization of olefins endowed with high activity and morphological stability comprises a non-stereospecific solid catalyst component containing Ti, Mg and a halogen, and an amount of an ethylene/alpha-olefin block (co)polymer ranging from 0.1 up to 5 g per g of said solid catalyst component, said prepolymerized catalyst component being characterized by a mercury porosity, due to pores having radius up to 1 μm, ranging from 0.15 to 0.5 cm | 10-23-2014 |
| 20140350200 | PROCESS FOR THE PRODUCTION OF BIMODAL POLYETHYLENE IN THE PRESENCE OF THIS CATALYST SYSTEM - The invention relates to a process for the production of bimodal polyethylene in a two-step polymerisation process in the presence of a catalyst system comprising: (I) the solid reaction product obtained by reacting of: a) a hydrocarbon solution containing 1) an organic oxygen containing magnesium compound or a halogen containing magnesium compound and 2) an organic oxygen containing titanium compound and b) an aluminium halogenide having the formula AIR | 11-27-2014 |
| 20160137759 | PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - The present technology relates to a pre-polymerized catalyst component for the polymerization of olefins, characterized by a non-stereospecific solid catalyst component comprising Ti, Mg and a halogen and an amount of a (co)polymer of an alpha-olefin CH | 05-19-2016 |
