Process of preparation of catalytic support and supported metallocene catalysts for production of homopolymers and copolymers of ethylene with alfa - olefins, of high and ultra high molecular weight and with broad molecular weight distribution in slurry, bulk and gas phase processes and products thereof

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 α-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.

1 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, wherein said homopolymers and copolymers are obtained from the reaction of the supported metallocene catalyst and an organometallic compound of the groups 2 or 13 of the Periodic Table, where the molar ratio Al/M ranges from 30:1 to 500:1, in the presence of ethylene and alternatively an α-olefin. 
     
     
         2 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein the organometallic compound of the groups 2 or 13 of the Periodic Table to be used are preferably TMAL, TEAL or TIBAL. 
     
     
         3 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present broad molecular weight distribution (MWD) in the presence of supported metallocene catalysts proper to be used in processes in bulk, slurry and gas phase, with MWD ranging from 2 to 15. 
     
     
         4 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present broad molecular weight distribution (MWD) in the presence of supported metallocene catalysts proper to be used in processes in bulk, slurry and gas phase, with MWD ranging, preferably from 3 to 8. 
     
     
         5 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present controlled morphology, spherical, presenting high bulk density (B.D.), ranging from 0.33 and 0.47 g/cm 3 , low TFP, between 0 and 0.4%-wt and good flowability, with TE ranging from 6 and 12 seconds. 
     
     
         6 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present intrinsic viscosity (η) ranging from 2 to 30 dL/g. 
     
     
         7 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present intrinsic viscosity (η) ranging, preferably from 4 to 28 dL/g. 
     
     
         8 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present viscosimetric molecular weight (Mv) ranging from 200,000 to 10,000,000 g/mol. 
     
     
         9 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present viscosimetric molecular weight (Mv) ranging preferably from 400,000 to 9,000,000 g/mol. 
     
     
         10 . Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, according to  claim 1 , wherein said homopolymers and copolymers present density in the molded (P.D.) ranging from 0.934 to 0.900 g/cm 3 .