Patent application number | Description | Published |
20130102744 | Catalyst Systems for the Polymerization of Olefins - A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from 1,3-diethers;
| 04-25-2013 |
20130131290 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A catalyst component for the polymerization of olefins comprising Mg, Ti and at least two electron donor compounds, one of which (A) belonging to specific diolesters and the other electron donor compound (B) being selected from aromatic monoesters of the following formula (B) in which R groups equal to or different from each other, are selected from C | 05-23-2013 |
20130131293 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor of Formula (I) in which R, R | 05-23-2013 |
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 |
20130197173 | CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS - A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from diolesters of a specific formula (b) an alkylaluminum cocatalyst and (c) an ester of formula R′OOC—(CR″ | 08-01-2013 |
20130203948 | 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 reacting:—an organo-aluminium compound, with—a solid catalyst component comprising Mg, Ti and electron donor compound selected from specific diolesters, said process being carried out employing an organo-aluminum/propylene ratio equal to or lower than 1.75 mmole/kg. | 08-08-2013 |
20130217844 | PROCESS FOR THE POLYMERIZATION OF OLEFINS - A process for the (co)polymerization of propylene carried out at a temperature ranging from 77 to 95° C. in the presence of a catalyst comprising the product obtained by reacting: —an organo-aluminium compound, with—-a solid catalyst component comprising Mg, Ti and electron donor compound selected from specific diolesters. | 08-22-2013 |
20140046010 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A porous solid catalyst component 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 selected from 1,3-diethers and the other being selected from succinates, characterized by the fact that the molar ratio ID/Ti is from 0.30 to 0.90, where ID is the total molar amount of succinate and 1,3-diether, the molar ratio of the 1,3-diether donor to the succinate donor is higher than, or equal to, 0.60. | 02-13-2014 |
20140094576 | PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A pre-polymerized catalyst component for the polymerization of olefins CH | 04-03-2014 |
20140142262 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) | 05-22-2014 |
20140148564 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS AND CATALYSTS THEREFROM OBTAINED - Catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a diol or a derivative thereof. A process for the use of catalyst components for the polymerization of olefins CH2=CHR wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising Mg, Ti, Cl and a diol or a derivative thereof. | 05-29-2014 |
20140243489 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) | 08-28-2014 |
20140243490 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) | 08-28-2014 |
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 |
20150025211 | CATALYST SYSTEM FOR THE POLYMERIZATION OF OLEFINS - A catalyst system comprising the product obtained by contacting (a) a solid catalyst component containing Mg, Ti, halogen and at least an electron donor compound selected from phenylene aromatic diesters of a specific formula
| 01-22-2015 |
20150141594 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - A catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) | 05-21-2015 |
20150141595 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Process for the polymerization of butene-1 carried out in the presence of a catalyst comprising
| 05-21-2015 |
20150158957 | CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS - Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) | 06-11-2015 |
Patent application number | Description | Published |
20100101755 | HEAT EXCHANGER FOR A BOILER - A heat exchanger for a boiler, comprising, within a monolithic structure, at least one pair of mutually opposite manifolds connected by perforated pins inserted within a portion of space which is delimited by the structure and is designed to convey the products of combustion, the manifolds being adapted to provide the circulation of the fluid to be heated between an inlet connector and an outlet connector. | 04-29-2010 |
20110094715 | METHOD FOR ANODIZING METALLIC ALLOYS, PARTICULARLY FOR HEAT EXCHANGERS MADE OF ALUMINUM ALLOYS AND THE LIKE FOR CONDENSING BOILERS - A method for anodizing metallic alloys, particularly for heat exchangers made of aluminum alloys and the like for condensing boilers, comprising a step of immersing at least one heat exchanger or the like made of a metallic alloy in a bath of an electrolytic solution functionally associated with a source of electric current through the heat exchanger, the anodizing method then providing for a step of anodizing the heat exchanger immersed in the bath, so as to anodize at least the outer surfaces of the heat exchanger, the method comprising a step of pumping the electrolytic solution into the heat exchanger immersed in the bath for the forced circulation of the electrolytic solution in the internal passage channels of the heat exchanger so as to anodize the inner surfaces of the heat exchanger. | 04-28-2011 |
20130192812 | HEAT EXCHANGER WITH DIE-CAST ELEMENTS AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a heat exchanger with die-cast elements, comprising a die-casting step for die-casting at least one element of a heat exchanger by means of at least one die, further comprising a positioning step for positioning at least one contoured duct inside the die, performed prior to the die-casting step. | 08-01-2013 |
Patent application number | Description | Published |
20080278213 | HIGH OHMIC INTEGRATED RESISTOR WITH IMPROVED LINEARITY - An integrated circuit that includes a resistor module with improved linearity is disclosed. The resistor module includes a diffused resistor body of a first conductivity type; a first terminal and a second terminal, each making direct electrical contact with the diffused resistor body; a doped well of a second conductivity type substantially surrounding the diffused resistor body on all but one major surface of the diffused resistor body, the doped well having contact regions; a first amplifier connected to the first terminal and to one contact region of the doped well; and a second amplifier connected to the second terminal and to another contact region of the well, such that the first amplifier and the second amplifier are connected for power supply only to the first terminal and second terminal, respectively. The first and second amplifiers may be unity gain buffer amplifiers or inverting opamps. | 11-13-2008 |
20080297212 | START-UP CIRCUITY FOR PROVIDING A START-UP VOLTAGE TO AN APPLICATION CIRCUIT - A startup circuit for providing a startup voltage from a high voltage DC bus voltage to an application circuit, the startup circuit comprising an integrated circuit package for at least a control circuit for driving at least one power switch of the application circuit having a low voltage terminal; a dropping resistor in the integrated circuit package having a first terminal for coupling to the high voltage DC bus and a second terminal, the dropping resistor dropping the high voltage DC bus voltage to a reduced voltage and providing the reduced voltage at the second terminal; further comprising a low voltage regulator coupled to the second terminal for using the reduced voltage for enabling generation of a regulated startup low voltage DC output at a preset level at the low voltage terminal for powering at least one part of the application circuit during startup of the application circuit, wherein the high voltage DC bus voltage is the only voltage source provided externally to the integrated circuit package. | 12-04-2008 |
20090102488 | GROUND FAULT DETECTION CIRCUIT FOR USE IN HIGH VOLTAGE MOTOR DRIVE APPLICATIONS - An integrated ground fault detection circuit in accordance with an embodiment of the present application includes a shunt resistor provided on a positive rail of a DC bus, a high voltage pocket including a sensory circuit connected to the shunt resistor and operable to detect a fault condition indicating a short circuit and a transmitter section operable to continuously transmit a fault condition signal indicating the fault condition and a low voltage pocket including a receiver operable to receive the fault condition signal from the sensory circuit and a logic unit, connected to the receiver, and operable to provide a fault output signal indicating the presence of a fault condition based on the fault condition signal. | 04-23-2009 |
20140070786 | Power Converter Including Integrated Driver Providing Overcurrent Protection - In one implementation, a power converter includes an output stage integrated circuit (IC) in a group III-V die including a depletion mode group III-V transistor, and a driver IC in a group IV die. The driver IC is configured to drive the output stage IC. In addition, a group IV control switch in the group IV die is cascoded with the depletion mode group III-V transistor. The power converter further includes an overcurrent protection circuit for the depletion mode group III-V transistor, the overcurrent protection circuit monolithically integrated in the group IV die. | 03-13-2014 |