Abstract: The present invention relates to a process for the preparation of catalytic support and the supported bimetallic catalysts, used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.

Abstract: Process for the preparation of catalytic support and supported bimetallic catalysts for production of homopolymers and copolymers of ethylene with ?-olefins, of high and ultra high molecular weight and with broad molecular weight distribution in slurry, bulk and gas phase processes and products thereof. The present invention relates to a process for the preparation of catalytic support and the supported bimetallic catalysts, used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.

Abstract: The present invention relates a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.

Abstract: A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps: (a) preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent of a non polar nature at a weight of homopolymer or copolymer to solvent ratio from 2/98 to 30/70, wherein said ultra high molecular weight homopolymer or copolymer is reactor bimodal or multimodal; (b) feeding said homopolymer or copolymer suspension to an extruder; (c) extruding said suspension under gel forming conditions, at a temperature in excess of 150° C., and under inert conditions; (d) spinning the gel obtained from the extrusion so as to obtain non-stretched filaments with diameters of at least 1 mm, at a temperature in excess of 150° C.

Abstract: Polymer yarns prepared from ultra high molecular weight homopolymers or copolymers which includes the steps of preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent, extruding the suspension with the formation of a gel, spinning the gel to obtain non-stretched filaments or yarns, cooling the non-stretched filaments or yarns, feeding the non-stretched filaments or yarns, to an extractor together with the feed of an organic extraction solvent, extracting the non-polar long chain solvent impregnated in the yarns, drying the non-stretched filament bundles or yarns, and stretching said dry yarns at a temperature in excess of 80° C.

Abstract: A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers which includes the steps of preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent, extruding the suspension with the formation of a gel, spinning the gel to obtain non-stretched filaments or yarns, cooling the non-stretched filaments or yarns, feeding the non-stretched filaments or yarns, to an extractor together with the feed of an organic extraction solvent, extracting the non-polar long chain solvent impregnated in the yarns, drying the non-stretched filament bundles or yarns, and stretching said dry yarns at a temperature in excess of 80° C.

Abstract: The present invention relates to a process for the preparation of catalytic support and the supported bimetallic catalysts, used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.

Abstract: The present invention relates a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.

Abstract: The present invention relates a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.

Abstract: A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps: (a) preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent of a non polar nature at a weight of homopolymer or copolymer to solvent ratio from 2/98 to 30/70, wherein said ultra high molecular weight homopolymer or copolymer is reactor bimodal or multimodal; (b) feeding said homopolymer or copolymer suspension to an extruder; (c) extruding said suspension under gel forming conditions, at a temperature in excess of 150° C., and under inert conditions; (d) spinning the gel obtained from the extrusion so as to obtain non-stretched filaments with diameters of at least 1 mm, at a temperature in excess of 150° C.

Abstract: A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps: (a1) preparing a suspension of a homopolymer or copolymer and a spinning or gelling solvent, of a non polar nature at a weight of homopolymer or copolymer to solvent ratio from 2/98 to 30/70; wherein said homopolymer or copolymer has a monomodal, bimodal or multimodal molecular weight distribution, and is obtained from C2+n monomers, wherein n varies from 0 to 2; (b1) feeding said homopolymer or copolymer suspension, to an extruder; (c1) extruding the suspension with the formation of a gel, at a temperature in excess of 150° C., under regular atmospheric or inert conditions; (d1) spinning the gel to obtain non-stretched filaments with diameters of at least 1 mm, at a temperature in excess of 150° C.