Patent application number | Description | Published |
20080293897 | Magnesium Dichloride-Ethanol Adducts and Catalyst Components Obtained Therefrom - Adducts are provided comprising MgCl | 11-27-2008 |
20090099324 | Magnesium dichloride-ethanol adducts and catalyst components obtained therefrom | 04-16-2009 |
20100168350 | 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 | 07-01-2010 |
20100240845 | Catalyst component for the polymerization of olefins - Catalyst component for the polymerization of olefins comprising Mg, Ti, halogen and an electron donor is obtained by a batch process comprising: (A) A first step comprising reacting an adduct of formula MgCl | 09-23-2010 |
20100240846 | Catalyst component for the polymerization of olefins based on 1,3-diethers - Catalyst components for the polymerization of olefins comprising Mg, Ti, halogen and 1,3-diethers as internal donors having an improved balance of properties in terms of activity and morphological stability are obtained by a process comprising: (A) A first step comprising reacting an adduct of formula MgCl | 09-23-2010 |
20100292419 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Prepolymerized catalyst component for the polymerization of olefins CH | 11-18-2010 |
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 |
20110245070 | Catalyst Components for the Polymerization of Olefins and Catalysts Therefrom Obtained - Catalyst component comprising Mg, Ti, Hf, a halogen and, optionally, —OR groups where R is a C1-C20 hydrocarbon group, characterized in that (a) the Mg atoms are present in an amount higher than 7% based on the total weight of the said catalyst component, (b) the amount of Mg, Ti, and Hf atoms is such that the Mg/Ti molar ratio ranges from 3 to 25 and the Hf/Ti molar ratio is lower than 1.5 and (c) when —OR groups are present their amount is such that the —OR/Ti molar ratio is lower than 2. | 10-06-2011 |
20110251352 | Catalyst Components for the Polymerization of Olefins - Prepolymerized catalyst component for the polymerization of olefins CH | 10-13-2011 |
20120010374 | Multistage Process for the Polymerization of Ethylene - The present invention relates to a slurry process for preparing an ethylene polymer having a melt flow ratio F/P, according to ASTM 1238, of higher than 25, carried out in two or more stages of polymerization at temperatures in the range from 60 to 120° C., in which at least two of the said two or more polymerization stages are carried out under different concentration of a molecular weight regulator, said process being carried out in the presence of a catalyst system comprising the product obtained by contacting (A) a solid catalyst component comprising Ti, Mg, halogen, and having a porosity (P | 01-12-2012 |
20120083576 | Process for the Preparation of Impact Resistant Propylene Polymer Compositions - A process for the preparation of propylene polymer compositions carried out in the presence of a catalyst system comprising (a) a solid catalyst component having average particle size ranging from 15 to 80 μm comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 50 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers, (b) an aluminum alkyl and optionally (c) an external electron donor compound, and comprising the following steps:
| 04-05-2012 |
20120178881 | Propylene polymer compositions - A propylene polymer composition comprising (percent by weight):
| 07-12-2012 |
20120259078 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS AND CATALYSTS THEREFROM OBTAINED - Catalyst component comprising Mg, Ti, and halogen atoms, and is characterized in that (a) the Ti atoms are present in an amount higher than 4% based on the total weight of the said catalyst component, (b) the amount of Mg and Ti atoms is such that the Mg/Ti molar ratio is higher than 2 and (c) by a X-ray diffraction spectrum, in which, in the range of 2θ diffraction angles between 47° and 52°, at least two diffraction lines are present at diffraction angles 2θ of 48.3±0.2°, and 50.0±0.2°, the most intense diffraction lines being the one at 2θ of 50.0±0.2°, the intensity of the other diffraction line being equal to or lower than the intensity of the most intense diffraction line. | 10-11-2012 |
20120283402 | Magnesium dichloride-water adducts and catalyst components obtained therefrom - Solid adducts comprising MgCl | 11-08-2012 |
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 |
20130158214 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A solid catalyst component for olefin polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ID) belonging to cyclic ethers having 3-6 carbon atoms, characterized by having the molar ratio Mg/Ti higher than 5, the molar ratio Mg/ID lower than 3, and by a specific X-ray diffraction spectrum. | 06-20-2013 |
20130197172 | MAGNESIUM DICHLORIDE-ALCOHOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM - Adducts comprising a MgCl | 08-01-2013 |
20130274428 | MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM - A solid adduct comprising magnesium chloride and ethanol in which the moles of ethanol per mole of magnesium chloride range from 2 to 5 and in which the ratio between the average pore radius measured in Angstrom of said adduct, determined by mercury porosity, and the moles of ethanol, is higher than 500. | 10-17-2013 |
20140046011 | MAGNESIUM DICHLORIDE-ALCOHOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM - Process for the preparation of solid particles of a magnesium-chloride alcohol adduct comprising (a) forming an emulsion between a MgCl | 02-13-2014 |
20140121340 | POLYPROPYLENE FILMS AND SHEETS - Films or sheets of polypropylene, particularly biaxially oriented polypropylene (BOPP) films, exhibiting excellent physical and mechanical properties combined with good processing characteristics can be prepared from propylene polymers prepared in the presence of Ziegler-Natta catalysts comprising a succinate and a diether compound. | 05-01-2014 |
20140171604 | MAGNESIUM DICHLORIDE-ETHANOL ADDUCTS AND CATALYST COMPONENTS OBTAINED THEREFROM - Solid adducts comprising MgCl | 06-19-2014 |
20140235802 | PROCESS FOR THE PREPARATION OF HIGH PURITY PROPYLENE POLYMERS - A process for the preparation of high purity propylene polymers carried out in the presence of a catalyst comprising the product obtained by contacting:
| 08-21-2014 |
20140316069 | PROCESS FOR THE PREPARATION OF HETEROPHASIC PROPYLENE POLYMER COMPOSITIONS - A process for the preparation of propylene polymer compositions comprising from 50 to 90% by weight of a propylene (co)polymer fraction insoluble in xylene at 25° C., and from 10 to 50% by weight of an ethylene copolymer fraction soluble in xylene at 25° C., said process comprising:
| 10-23-2014 |
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 |
20140378631 | 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 (i) a non-stereospecific solid catalyst component comprising Ti, Mg and a halogen and having a porosity, due to pores with radius up to 1 μm, ranging from 0.2 to 0.8 cm | 12-25-2014 |