| Patent Number |
Title Of Patent |
Date Issued |
| 7553802 |
Process to modify the rheological properties of the EP(D)M polymers and EP(D)M mixtures with pol |
June 30, 2009 |
| A process is described to modify the rheology of EP(D)M copolymers optionally mixed with polyalpha-olefins, which comprises treating in high shear conditions a polymeric mixture comprising one or more EP(D)M polymers, optionally mixed with polyalpha-olefins, in presence of one or mor |
| 7482408 |
Elastomeric blends based on carbon black |
January 27, 2009 |
| Elastomeric blends are described, comprising an elastomeric composition and carbon black, the above elastomeric composition consisting of: (i) one or more elastomers (A) selected from ethylene-propylene (EPM) copolymers and ethylene-propylene-diene (EPDM) terpolymers; (ii) one or m |
| 7208543 |
Ethylene-propylene copolymers with an improved shape stability suitable for modifying lubricatin |
April 24, 2007 |
| A process is described for the preparation of viscosity index improver (V.I.I.) additives which includes treatment under high shear conditions of a composition comprising (i) one or more EP(D)M polymers and (ii) one or more polyvinylarene/hydrogenated conjugated diene/polyvinylarene bloc |
| 6403739 |
Supported catalytic system for the production of ethylene propylene copolymers |
June 11, 2002 |
| Catalytic component for the polymerization of ethylene with propylene prepared by:a) impregnation of an inert support with a solution of a compound of Vanadium having an oxidation state of between 3 and 5;b) subsequent treatment with a solution of a compound having general formula (I) R. |
| 6228960 |
Process for the preparation of ethylene propylene copolymers with a low content of residual chlo |
May 8, 2001 |
| Process for the preparation of EP(D)M elastomeric copolymers in liquid phase, preferably in suspension of a liquid monomer, in the presence of a catalyst essentially consisting of a Vanadium compound, a cocatalyst essentially consisting of an Aluminium trialkyl, and optionally an act |
| 6211332 |
Process for reducing the molecular weight of copolymers and terpolymers of ethylene |
April 3, 2001 |
| Process for the reduction of the molecular weight of a polymeric material selected from EPM copolymer and EPDM terpolymer and relative mixtures, which comprises the treatment of the polymeric material with at least one hydroperoxide. |
| 5919877 |
Process for the preparation of ethylene-propylene copolymers |
July 6, 1999 |
| Process for the in situ polymerization of ethylene with C.sub.3 -C.sub.10 alpha-olefins in suspension of liquid monomer in the presence of a catalyst containing Vanadium obtained by the precipitation, in an atmosphere of ethylene or alpha-olefins, of:a) a compound of Vanadium in the oxid |
| 5804614 |
Process for the production of ethylene-propylene elastomeric copolymers |
September 8, 1998 |
| Process for the preparation in liquid phase of copolymers of ethylene with propylene and optionally another diene, in the presence of a catalyst selected from (a) Titanium salt supported on magnesium salt and (b) compound of Vanadium soluble in hydrocarbon solvents either supported on |
| 5780570 |
Process for the preparation of polymeric mixtures based on EP (D) M elastomer copolymers |
July 14, 1998 |
| Process with two or more steps for the preparation in suspension of mixtures of ethylene-propylene (EPM) elastomer homopolymers or ethylene-propylene-diene (EPDM) elastomer terpolymers in the presence of a catalytic system essentially consisting of a compound of Vanadium and a cocata |
| 5773539 |
Catalytic component based on vanadium and its use in the preparation of EP(D)M |
June 30, 1998 |
| Catalytic component for the (co)polymerization of alpha-olefins consisting of the compound having the general formula VL.sub.3, wherein V is trivalent vanadium and L is a ligand selected from those having general formula (I): ##STR1## wherein R is selected from H and C.sub.1 -C.s |
| 5491208 |
Ethylene-propylene elastomeric copolymers with a low content of residual chlorine |
February 13, 1996 |
| In an improved process for producing elastomeric ethylene-propylene copolymers with a propylene content comprised within the range of from 22 to 38% by weight and a content of residual chlorine, coming from the co-catalyst, lower than 300 parts per million parts, the polymerization is |
| 5374695 |
Process for the preparaton of elastomeric copolymers of ethylene |
December 20, 1994 |
| Process for the preparation of elastomeric copolymers of ethylene, wherein ethylene is copolymerized with an .alpha.-olefin, and possibly with a diene as termonomer, in the presence of a Ziegler-Natta catalyst including a solid component of catalyst based on titanium and aluminium, suppo |
