| Patent Number |
Title Of Patent |
Date Issued |
| 7612119 |
Expandable vinylaromatic polymers and process for their preparation |
November 3, 2009 |
| Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0-50% by weight of a copolymerizable monomer; b) 1-10% by weight, calculated with respect to the polymer (a) of an expanding agent englobed |
| 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 |
| 7547778 |
Process for the preparation of MFI-type zeolitic catalysts |
June 16, 2009 |
| The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form.The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a |
| 7524788 |
Process for the alkylation of aromatic compounds |
April 28, 2009 |
| Process for preparing alkylated aromatic compounds which comprises reacting an aromatic compound with a ketone and hydrogen in the presence of a catalytic composition comprising a solid acid material and copper. A preferred aspect is to use a catalytic composition also containing one or |
| 7514386 |
Chlorinated promoters for vanadium-based polymerization catalysts |
April 7, 2009 |
| Promoters are described for vanadium-based catalysts used in the (co)polymerization of olefins and, in particular, in the production of ethylene/propylene (EPR) or ethylene/propylene/diene (EPDM) elastomeric copolymers. The promoters of the present invention belong to the group of co |
| 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 |
| 7473741 |
Process for the selective hydrogenation of unsaturated (co)polymers |
January 6, 2009 |
| Process for the selective hydrogenation of double olefinic bonds present in polymers and copolymers of conjugated dienes, which comprises: (a) preparation of a hydrocarbon solution of the (co)polymer to be hydrogenated, optionally containing a modifier (C); (b) addition to the above |
| 7462206 |
Use of a mixture of esters of fatty acids as fuel or solvent |
December 9, 2008 |
| The invention relates to the use of a mixture, comprising one or more alkyl esters of fatty acids and one or more esters of fatty acids of glycerol carbonate, as a fuel or solvent. |
| 7449528 |
Supported catalyst containing active titanium in the homo, co-, and ter-polymerization of olefin |
November 11, 2008 |
| The present invention relates to a supported catalyst containing titanium, its preparation and it use in the homo-, co-, and ter-polymerization of olefin-unsaturated compounds. The present invention also relates to a catalytic system comprising a supported catalyst based on titanium and |
| 7442846 |
Process for the regeneration of catalysts for steam cracking |
October 28, 2008 |
| Process for the regeneration of exhausted catalysts, containing one or more calcium aluminates, for steam cracking reactions, comprising treating said exhausted catalysts in a stream of water vapour at a temperature ranging from 700 to 950.degree. C., preferably from 720 to 850.degre |
| 7393986 |
Process for the production and purification of vinyl aromatic monomers |
July 1, 2008 |
| Process for the production of vinyl aromatic monomers which comprises: a) feeding an aromatic stream and an olefinic stream to an alkylation unit; b) feeding the reaction product coming from the alkylation section to a first separation section; c) recovering the mono-alkylated aromatic |
| 7388052 |
Process for the preparation of block copolymers |
June 17, 2008 |
| Process for the preparation of block copolymers, based on vinylaromatic monomers and monomers deriving from (meth)acrylic acid by means of radicalic polymerization which comprises polymerizing the monomers at a temperature higher than or equal to 120.degree. C., in the presence of a |
| 7368623 |
Process for producing 1-octene from butadiene in the presence of titanium catalysts |
May 6, 2008 |
| A method is described for the preparation of 1-octene starting from butadiene, wherein in a first step (a) the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on palladium containing one or more tri-substituted monodentate phosphine |
| 7368622 |
Process for the preparation of 1-octene |
May 6, 2008 |
| Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on a palladium complex containing one or more tri-substitute |
| 7341973 |
Solid base catalyst and use thereof in base catalysis |
March 11, 2008 |
| The present invention relates to solid base catalysts consisting of an amorphous material obtained from a silica or alumina gel containing an alkaline, earth-alkaline or transition metal (M), characterized by a molar ratio between metal (M) and Si or Al ranging from 30:1 to 0.0001:1, |
| 7320585 |
Device for the hot granulation of thermoplastic polymers |
January 22, 2008 |
| Device for the hot granulation of thermoplastic polymers, optionally expandable, which comprises: a) a die (1) containing a series of small plates (6), equipped with a series of extrusion holes, and a plurality of feeding ducts (3) situated inside the die body (2) in correspondence with |
| 7279504 |
Expandable vinylaromatic polymers and process for their preparation |
October 9, 2007 |
| Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0.50% by weight of a copolymerizable monomer; b) 1-10% by weight, calculated with respect to the polymer (a), of an expanding agent englo |
| 7273913 |
Process for the preparation of ethylene copolymers |
September 25, 2007 |
| A process is described for the preparation of ethylene copolymers having a wide molecular weight distribution, characterized in that it is carried out in the presence of meso- and rac-stereoisomeric mixtures of metallocene compounds having general formula (I), wherein A' and A'', the |
| 7214637 |
Process for the preparation of MFI-type zeolitic catalysts |
May 8, 2007 |
| The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form.The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a |
| 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 |
| 7157397 |
Process for the production of mesitylene |
January 2, 2007 |
| A process is described for the synthesis of mesitylene, characterized in that mesitylene is obtained starting exclusively from pseudocumene, without the use of any other chemical compound, operating in continuous, at a temperature ranging from 225 to 400.degree. C., at a pressure ran |
| 7148381 |
Process for the activation of zeolitic catalysts containing titanium and their use in oxidation |
December 12, 2006 |
| A process is described for the activation of zeolitic catalysts containing titanium having the formula: xTiO.sub.2(1-x)SiO.sub.2 wherein x ranges from 0.0001 to 0.4, which consists in treating said materials with a solution of an ammonium salt of a carboxylic acid and subsequently su |
| 7112632 |
Process for the preparation of low branch content polybutadiene |
September 26, 2006 |
| A process for the preparation of low branch content polybutadiene comprising: (a) a first butadiene polymerisation stage; (b) treatment of the polymer solution obtained upon completion of stage (a) with a coupling agent selected from: (i) polyunsaturated natural oils; (ii) butadien |
| 7105142 |
Direct synthesis of hydrogen peroxide in a multicomponent solvent system |
September 12, 2006 |
| A process is described for the production of hydrogen peroxide from hydrogen and oxygen in a reaction solvent containing a halogenated promoter and/or an acid promoter, in the presence of a heterogeneous catalyst based on one or more metals of the platinum group, wherein the reaction |
| 7101526 |
Catalyst and its use in the synthesis of hydrogen peroxide |
September 5, 2006 |
| The present invention relates to a catalyst consisting of: (a) one or more metals of the platinum group as active components; (b) one or more polyolefins; and (c) a carrier. The invention also relates to a process for the synthesis of hydrogen peroxide (H.sub.2O.sub.2) from hydrogen and |
| 7081505 |
Activating organometallic composition for the (co) polymerization of alpha-olefins comprising fl |
July 25, 2006 |
| An organometallic composition which can be used as activating component in a metallocene catalyst for the (co)polymerization of .alpha.-olefins, comprises: (A) a fluorinated di-unsaturated cyclic compound, having a relatively acid hydrogen atom, (B) an organometallic compound suffici |
| 7078466 |
Process for the preparation of branched polydienes in the presence of catalysts based on rare-ea |
July 18, 2006 |
| A process is described for the preparation of polydienes with a low vinyl content and having a branched structure effected by means of the polymerization of conjugated dienes in the presence of catalysts based on rare-earth compounds. The resulting polymers are characterized in that |
| 7074868 |
Random butadiene-isoprene copolymers with a trans-1, 4 structure |
July 11, 2006 |
| A description follows of random butadiene-isoprene copolymers with a trans-1,4 structure, having a butadiene/isoprene molar composition ranging from 98/2 to 32/68, the above copolymers being crystalline or amorphous depending on the isoprene content. The process for the preparation o |
| 7048905 |
Process for the production of hydrogen peroxide |
May 23, 2006 |
| Process for the production of concentrated aqueous solutions of hydrogen peroxide, comprising the following steps: (a) feeding to a reactor containing a catalyst based on palladium and platinum, heterogeneous and maintained in dispersion in a liquid reaction medium: (i) a liquid stream |
| 7038093 |
Integrated process for the preparation of phenol from benzene with recycling of the by-products |
May 2, 2006 |
| The invention relates to a process for the preparation of phenol comprising the following phases: 1) preparation in continuous of phenol by means of the direct oxidation of benzene with hydrogen peroxide operating with an H.sub.2O.sub.2/benzene ratio ranging from 10 to 70%, in a thre |
| 7030195 |
Process for the preparation of polybutadiene with a low branching degree |
April 18, 2006 |
| Process for the preparation of polybutadiene with a low branching degree which comprises: (a) a first polymerization step of butadiene in the presence of organic solvents and in the presence of a catalytic system comprising (a1) a derivative of neodymium; (a2) an aluminum alkyl having |
| 7015277 |
Elastomeric composition comprising a functionalized elastomer |
March 21, 2006 |
| An elastomeric composition vulcanizable with sulfur and/or sulfur donors useful for the preparation of tyres, which comprises: a) 100 parts of an elastomeric mixture comprising from 20 to 100% by weight, preferably from 60 to 100% by weight, of a functionalized elastomer (a1), from 0 to |
| 6984703 |
Bridged metallocene compounds as olefin-polymerization catalysts |
January 10, 2006 |
| The present invention relates to metallocene compounds consisting of indenyl-cyclopentadienyl groups non-symmetrically joined by a bivalent radical. Said compounds can be conveniently used as components of catalysts for the polymerization of olefins. |
| 6949687 |
Process for the production of mesitylene and durene |
September 27, 2005 |
| A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use of any further chemical compound, operating in continuous, at a temperature ranging from |
| 6936738 |
Process for the preparation of phenol by means of the hydrodeoxygenation of benzene-diols |
August 30, 2005 |
| A process is described for the preparation of phenol characterized in that the phenol is obtained by means of the hydrodeoxygenation of benzene-diols with hydrogen, operating in continuous, in an aqueous solution, at temperatures ranging from 250 to 500.degree. C., at pressures of 1-100 |
| 6930158 |
Substituted polycyclic cyclopentadienes and method for their preparation |
August 16, 2005 |
| New polycyclic cyclopentadiene compounds having the formula (II) wherein the various substituents and symbols R1, R2, R3, R4, R5, R6, R7, Z1 and Z2 and "n" have the meaning specified in the description. These compounds can form metallocene complexes with transition metals, which have sho |
| 6927313 |
Process for the selective oligomerization of ethylene |
August 9, 2005 |
| Process for the selective oligomerization of ethylene to give .alpha.-olefins essentially consisting of C.sub.4 to C.sub.8, characterized in that it is carried out in the presence of a catalytic system comprising the complex having general formula (II): (L)M(Y).sub.n wherein L repres |
| 6916931 |
Tridentate ligands and relative complexes with transition metals |
July 12, 2005 |
| The present invention relates to tridentate ligands and the relative complexes of these ligands with transition metals. The ligands and their complexes are useful in the oligomerization and/or polymerization of ethylene and .alpha.-olefins. The ligands are represented by formula (I) |
| 6888013 |
Integrated process for the preparation of olefin oxides |
May 3, 2005 |
| The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containing hydrogen, oxygen an |
| 6861543 |
Process for the preparation of ep(d)m elastomeric copolymers and terpolymers |
March 1, 2005 |
| A process is described for the preparation of elastomeric EP(D)M copolymers and terpolymers, characterized in that it is carried out in the presence of metallocene compounds of general formula (I) having a racemic stereoisomerism ##STR1## |
| 6858683 |
Process for the preparation of SBR rubbers with an improved processability and a lower rolling r |
February 22, 2005 |
| Process for the production of statistic elastomeric conjugated diene-vinyl arene copolymers having a branched structure which comprises: (1) anionic copolymerization in solution of the conjugated diene and vinyl arene monomers, in the presence of randomizing agents and an initiator selec |
| 6844478 |
Substituted polycyclic cyclopentadienes and method for their preparation |
January 18, 2005 |
| New polycyclic cyclopentadiene compounds having the formula (II) wherein the various substituents and symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, Z.sup.1 and Z.sup.2 and "n" have the meaning specified in the description. These compounds can form metallocene |
| 6838406 |
Process for the preparation of MFI-type zeolitic catalysts |
January 4, 2005 |
| The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form.The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a non |
| 6833465 |
Stabilized metallocene compounds of transition metals of group 4 and process for their preparati |
December 21, 2004 |
| A metallocene compound of a metal M of group 4 in the table of elements, comprising a cyclopentadienyl group and at least one oligomeric group R' bonded to M, having the following formula (II):wherein: A represents any monomeric unit deriving from a vinylaromatic group polymerizable b |
| 6831135 |
Process for the hydrogenation of homopolymers and copolymers of conjugated dienes |
December 14, 2004 |
| A process is described for the hydrogenation of olefin double bonds present in polymers and copolymers of conjugated dienes, which comprises putting the above polymer or copolymer of conjugated dienes in contact with hydrogen in an inert solvent, in the presence of a catalytic system, |
| 6831034 |
Catalytic composition for the (co) polymerization of .alpha.-olefins |
December 14, 2004 |
| Catalytic composition for the (co)polymerization of ethylene and other .alpha.-olefins, including a metallocene complex of a metal M of group 4 of the periodic table or the product obtainable from the same combined with a suitable activator, wherein said metallocene complex includes at |
| 6756456 |
Adhesive latex based on carboxyl-functionalized polychloroprene with low water retention |
June 29, 2004 |
| A process for the polymerization of chloroprene or of a mixture of chloroprene and of up to 20% by weight of a copolymerizable monomer, in aqueous emulsion in the presence of radical initiators, at a temperature of between 5.degree. C. and 70.degree. C., characterized in that the pol |
| 6680413 |
Process for the recovery of phenol and biphenols |
January 20, 2004 |
| A process is described for the recovery of phenol and biphenols from their homogeneous mixtures containing benzene, sulfolane and water, which is based on the use of an alkaline solution and benzene for the separation of biphenols from sulfolane, after removing the benzene, H.sub.2 O and |
