| Patent Number |
Title Of Patent |
Date Issued |
| 7595103 |
Pipe systems of polypropylene compositions |
September 29, 2009 |
| Polypropylene pipes (parts by weight): 1) 100 parts of a crystalline random copolymer of propylene with 1-15% by weight of a C.sub.4-C.sub.10 .alpha.-olefin or a crystalline random copolymer of propylene with 1-15% by weight of C.sub.4-C.sub.10 .alpha.-olefin and with 1-7% by weight of |
| 7560521 |
Components and catalysts for the polymerization of olefins |
July 14, 2009 |
| A catalyst component for the polymerization of olefins comprising a titanium compound, a Mg-dihalide, a difunctional electron donor compound (ED) selected from diesters, diketones, diamines or diethers, and a monofunctional electron donor compound (MD) selected from ethers, esters, a |
| 7557161 |
Crystalline propylene copolymer compositions having improved sealability and optical properties |
July 7, 2009 |
| Propylene polymer compositions comprising (by weight): A) from 15% to 60% with C.sub.4-C.sub.8 alpha-olefin(s), containing more than 10%, but less than 14%, of said C.sub.4-C.sub.8 alpha-olefins (s); B) from 40% to 85% of a copolymer of propylene with C.sub.4-C.sub.8 alpha-olefin(s), |
| 7470727 |
Polypropylene resin composition |
December 30, 2008 |
| A polypropylene resin composition comprising (A) 99.8 to 80 weight parts of a polypropylene resin having a melt flow rate of 0.1 to 50 g/10 min and (B) 0.2 to 20 weight parts of an olefin copolymer rubber having an intrinsic viscosity [.eta.] of 0.5 to 4.0 dl/g and/or a polyethylene |
| 7465821 |
Process for preparing alkylidene-substituted-1, 4-dions derivatives |
December 16, 2008 |
| A process for the preparation of an monoalkylidene substituted 1,4-dions derivatives of formula (Ia) or (Ib) or a mixture of (Ia) and (Ib): wherein: R.sup.1, R.sup.2 and R.sup.3, equal to or different from each other, are hydrogen atoms or C.sub.1-C.sub.20 hydrocarbon groups: T.sup.1 |
| 7439313 |
Magnesium dichloride-ethanol adducts and catalyst components obtained therefrom |
October 21, 2008 |
| A MgCl.sub.2.mEtOH.nH.sub.2O adducts, where 3.4<m.ltoreq.4.4, 0.ltoreq.n.ltoreq.0.7, characterized by an X-ray diffraction spectrum, taken under the condition set forth above, in which, in the range of 2.theta. diffraction angles between 5.degree. and 10.degree., at least two diff |
| 7427653 |
Catalyst components for the polymerization of olefins |
September 23, 2008 |
| A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters, amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti is higher than 5, |
| 7399879 |
Process for preparing alkylidene-substituted-1,4-dions derivatives |
July 15, 2008 |
| A process for the preparation of a monoalkylidene substituted 1,4-dions derivatives of formula (Ia) or (Ib) or a mixture of (Ia) and (Ib): wherein: R.sup.1, R.sup.2 and R.sup.3, equal to or different from each other, are hydrogen atoms or C.sub.1 C.sub.20 hydrocarbon groups: T.sup.1 |
| 7381773 |
Clear and flexible propylene polymer compositions |
June 3, 2008 |
| A propylene polymer composition having a melt flow rate (MFR) value from 3 to 30 g/10 min, comprising (percent by weight): A) 50-90% of one or more propylene copolymer(s) having a content of xylene-insoluble mojety at room temperature of not less than 85%, selected from the group consist |
| 7371806 |
Process for the preparation of ethylene copolymers |
May 13, 2008 |
| Process for the preparation of ethylene copolymers comprising the copolymerization of ethylene with olefins CH.sub.2.dbd.CHR, in which R is a hydrocarbyl radical with 1-12 carbon atoms carried out in the presence of a catalyst comprising (i) a solid catalyst component comprising Mg, |
| 7316987 |
Components and catalysts for the polymerization of olefins |
January 8, 2008 |
| Catalyst component for the polymerization of olefins obtainable by contacting: (i) a magnesium halide, or a suitable precursor; (ii) a monofunctional electron donor compound (MD) selected from ethers, esters, amines or ketones, used in such amounts to have Mg/MD molar ratios of at le |
| 7307035 |
Magnesium dichloride-alcohol adducts and catalyst components obtained therefrom |
December 11, 2007 |
| The present invention relates to an adduct comprising M.sub.gCl.sub.2, an alcohol (ROH) in which R is a C1-C10 hydrocarbon group, and a compound containing a transition metal M selected from the Groups 3 to 11 or the lanthanide or actinide groups of the Periodic Table of the Elements (ne |
| 7294674 |
Soft polyolefin compositions with improved flow |
November 13, 2007 |
| A polyolefin composition suitable for preparing films and sheets, comprising: (A) from 15 to 40% by weight of a crystalline copolymer of propylene with at least one alpha-olefin of formula H.sub.2C.dbd.CHR.sup.1, where R.sup.1 is H or a C.sub.2-8 linear or branched alkyl, containin |
| 7291676 |
Polyolefin composition with improved abrasion resistance |
November 6, 2007 |
| A composition comprising: (I) 55 to 95% by weight of an heterophasic polyolefin composition comprising 8 to 50% by weight of a crystalline propylene polymer fraction and 50 to 92% by weight of an elastomeric propylene fraction; (II) 2 to 20% by weight of an oxidized polyethylene wax |
| 7288598 |
Polyolefin masterbatch for preparing impact-resistant polyolefin articles |
October 30, 2007 |
| A masterbatch composition comprising (1) 10-50 wt % of a crystalline propylene homopolymer and (2) 50-90 wt % of a blend consisting of (a) a copolymer of ethylene and one or more C4-CIO a-olefin(s), containing 10-40 of C4-CIO a-olefin(s), and (b) an amorphous copolymer of propylene a |
| 7223712 |
Catalyst component for the (CO)polymerization of olefins |
May 29, 2007 |
| An internal electron-donor compound selected from the 1,3-diethers of formula (I) ##STR00001## in which R is a C.sub.1 C.sub.10 alkyl group, R.sub.1 is a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and R.sub.2 is a |
| 7202314 |
Components and catalysts for the polymerization of olefins |
April 10, 2007 |
| The present invention relates to a solid catalyst component for the polymerization of olefins CH.sub.2.dbd.CHR in which R is hydrogen or a hydrocarbon radical with 1 12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from succinates, said catalyst component be |
| 7199163 |
Method for removing volatile components from polymer compositions |
April 3, 2007 |
| Method for continuously removing the unreacted butene-1, and optionally other volatile components, from a polymeric solution obtained by liquid phase (co)polymerization of butene-1, the method comprising the steps of: subjecting the polymeric solution to heating and mixing conditions suc |
| 7196140 |
Highly flowable propylene block copolymers |
March 27, 2007 |
| The invention relates to highly flowable propylene block copolymers that comprise 50 to 80 wt.-% of a propylene homopolymer and 10 to 70 wt.-% of a propylene copolymer having 5 to 50 wt.-% of a C.sub.2 C.sub.8 alk-1-ene polymerized into it that is different from propylene, and that are |
| 7183332 |
Process for the preparation of porous polymers and polymers obtainable thereof |
February 27, 2007 |
| A process for preparing porous olefin polymers comprising bringing into contact in a polymerization reactor, at a temperature T.sup.1, one or more olefins of the formula (I) CH.sub.2.dbd.CHR.sup.1, R.sup.1 being hydrogen, a C.sub.1 C.sub.20-alkyl or a C.sub.6 C.sub.12-aryl group, with |
| 7160964 |
Liquid phase process for the polymerization of .alpha.-olefins |
January 9, 2007 |
| A liquid-phase process for polymerizing .alpha.-olefins of the formula CH.sub.2.dbd.CHR, where R is H or an alkyl radical C1 C6, to produce a polymer that is soluble in the reaction medium, comprising the steps of: a) continuously polymerizing in liquid phase the .alpha.-olefin in the |
| 7138469 |
Process for the polymerization of olefins |
November 21, 2006 |
| Process for the polymerization of olefins CH.sub.2.dbd.CHR, in which R is hydrogen or a hydrocarbon radical with 1 12 carbon atoms, carried out in the presence of a catalyst component (A) comprising Mg, Ti and halogen as essential elements and of a catalyst component (B) capable to produ |
| 7125924 |
Highly filled soft polyolefin compositions |
October 24, 2006 |
| Polyolefin compositions filled with high amounts of inorganic fillers comprising, by weight: (I) 20 to 60% by weight of an heterophasic polyolefin composition comprising: A) from 8 to 25% by weight of a crystalline polymer fraction selected from propylene homopolymer, propylene copol |
| 7112642 |
Highly stereoregular polypropylene with improved properties |
September 26, 2006 |
| Propylene polymers having a content of isotactic pentads (mmmm) higher than 97%, molecular weight distribution, expressed by the formula (a) ratio, equal to or higher than 6 and a value of formula (b) ratio equal to or lower than 5.5. The said polymers are prepared in the presence of a |
| 7098164 |
Process for the polymerization of olefins |
August 29, 2006 |
| A process for the (co) polymerization of olefins of formula CH.sub.2.dbd.CHR wherein R is a hydrogen atom, a methyl or an ethyl radical, carried out in the presence of a system comprising (a) solid catalyst component comprising a compound of Ti or V not containing Metal-.pi. bonds, M |
| 7087688 |
Magnesium dichloride-ethanol adduct and catalyst components obtained therefrom |
August 8, 2006 |
| A MgCl.sub.2mEtOHnH.sub.2O adducts, where 3.4<m.ltoreq.4.4, 0.ltoreq.n.ltoreq.0.7, characterized by an X-ray diffraction spectrum, taken under the condition set forth above, in which, in the range of 2.theta. diffraction angles between 5.degree. and 10.degree., at least two diffra |
| 7067690 |
Separation of diastereoisomers |
June 27, 2006 |
| Process for modifying the relative ratios of the components of a liquid starting mixture of specific diastereoisomers, containing at least two asymmetric carbon atoms comprising contacting said liquid mixture with a Lewis acid compound capable of co-ordinating a compound having at least |
| 7067591 |
Block copolymers and process for their preparation |
June 27, 2006 |
| A block copolymer having structural formula A-B or A-B-A, wherein A is a crystallizable isotactic polypropylene block segment and B is an amorphous olefin elastomeric block segment; the novel crystallizable block copolymer may be used as it is as a molding material, or as a compatibi |
| 7019097 |
Process for the (co)polymerization of ethylene |
March 28, 2006 |
| A process for the (co)polymerization ethylene, optionally in mixtures with olefins CH.dbd.CHR in which R is hydrogen or a hydrocarbyl radical with 1 12 carbon atoms, carried out in the presence of a catalyst system comprising (A) a solid catalyst component which comprises Mg, halogen an |
| 6908967 |
High transparency and high flexibility elastoplastic polyolefin compositions |
June 21, 2005 |
| Highly transparent and flexible elastoplastic polyolefin compositions which contain A) 10-20 parts by weight of a propylene homopolymer or copolymer with ethylene and/or one or more CH.sub.2.dbd.CHR .alpha.-olefins, the copolymer containing at least 95% by weight of propylene; B) 5-20 pa |
| 6906154 |
Catalyst for the polymerization of olefins |
June 14, 2005 |
| The present invention relates to catalyst components for the polymerization of olefins comprising a titanium compound, having at least a Ti-halogen bond, and at least two electron donor compounds supported on a Mg dihalide, said catalyst component being characterized by the fact that at |
| 6893590 |
Coupling metal parts with a plastic material |
May 17, 2005 |
| A process for effecting a coupling between a plastic material and a metal surface comprising the steps of applying a powder of an adhesive polymer composition to the metal surface; then overmoulding the metal surface with a plastic material by injection moulding; and finally applying hea |
| 6887940 |
Compatibilizing agent for engineering thermoplastic/polyolefin blend |
May 3, 2005 |
| A compatible blend of an engineering thermoplastic such as a polyamide and an olefin polymer material is prepared by (1) making an oxidized olefin polymer material containing carboxylic acid groups or derivatives thereof, (2) extruding a mixture of (a) the oxidized olefin polymer materia |
| 6869982 |
Irradiated, oxidized olefin polymer coupling agents |
March 22, 2005 |
| Irradiated, oxidized olefin polymer coupling agents for use in the manufacture of non-halogenated flame retardant-containing and filler-containing olefin polymer compositions and coupling agent-containing olefin polymer concentrates. |
| 6864308 |
Method for making polyolefin nanocomposites |
March 8, 2005 |
| A polyolefin nanocomposite is prepared by melt blending (a) a polyolefin and (b) a smectite clay in the presence of at least one intercalating agent that is a solid at room temperature and is selected from the group consisting of (a) hydroxy-substituted carboxylic acid esters, (b) amides |
| 6861476 |
Mixtures of thermoplastic elastomers and polar polymers |
March 1, 2005 |
| Compositions of elastoplastic ionomeric polymers having hardness below 92 points Shore A. comprising polar elastomers (10-45 wt. %), such as polyacrylic and nitrile rubbers, apolar crystalline polyolefins (15-40 wt. %) and elastoplastic polyolefins (25-75 wt. %). These compositions are |
| 6861385 |
Process for the preparation of a spherical support comprising a Mg dihalide |
March 1, 2005 |
| A process for preparing spherical support particles used in the preparation of catalytic components for the polymerization of olefins by (a) forming an emulsion of an adduct of a Mg dihalide and a Lewis base compound in a liquid medium, and (b) cooling the emulsion by transferring it int |
| 6858672 |
Safe process for making polymers containing N-phenylimide groups |
February 22, 2005 |
| Polymers containing N-phenylimide groups are made by reacting polymers containing succinic or glutaric anhydride groups with a substituted or unsubstituted aminobenzoic acid in a devolatilizing extruder at a barrel temperature of about 180.degree. to about 320.degree. C., whereby complet |
| 6841501 |
Catalyst system for the polymerization of olefins |
January 11, 2005 |
| A catalyst system for the polymerization of olefins comprising the product obtained by contacting: (A) at least one transition metal organometallic compound, pyrrolidyl bis(.eta.-cyclopentadienyl)methylzirconium being excluded, and (B) an organometallic compound obtained by contacting: |
| 6825309 |
Catalyst components for the polymerization of olefins |
November 30, 2004 |
| The present invention relates to catalyst components for the polymerization of olefins comprising Mg, Ti, halogen and at least two electron donor compounds, said catalyst component being characterized by the fact that at least one of the electron donor compounds, present in an amount fro |
| 6822106 |
Preparation of ethylene polymers |
November 23, 2004 |
| Ethylene based polymers having high molecular weights can be obtained in high yields at temperatures of industrial interest, by carrying out the polymerization reaction in the presence of catalysts comprising silicon bridged metallocenes having a particular ligand system containing a |
| 6818583 |
Components and catalysts for the polymerization of olefins |
November 16, 2004 |
| The present invention relates to a solid catalyst component for the polymerization of olefins CH.sub.2.dbd.CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from substituted succinates of a particular |
| 6818187 |
Apparatus for gas-phase polymerization |
November 16, 2004 |
| An apparatus for gas-phase catalytic polymerization comprising a first vertical reactor (1), a second vertical reactor (2), the upper region of said reactor (1) being connected by a connecting part (3) to a solid as separator (4), which is in turn connected to the upper region of second |
| 6800710 |
Polyolefin sheets for thermoforming |
October 5, 2004 |
| Polypropylene sheet for thermoforming having at least one layer comprises a propylene polymer containing at least 0.8% by weight of ethylene and, optionally, one or more C.sub.4 -C.sub.10 .alpha.-olefins, or a propylene polymer composition containing at least 0.8% by weight of one or mor |
| 6800694 |
Polyolefin graft copolymers made with fluorinated monomers |
October 5, 2004 |
| A fluorine-containing graft copolymer is made from a backbone of an olefin polymer material to which is graft polymerized (a) at least one gaseous fluorinated monomer such as vinylidene fluoride, (b) at least one fluorinated acrylic acid or ester, (c) a mixture of (a) and (b), or (d) a |
| 6797794 |
Olefins produced from pre-polymerized catalyst component catalysts |
September 28, 2004 |
| Olefin polymers produced using components of catalysts obtained by contacting a Ti compound of formula Ti(OR).sub.n-y X.sub.y, where n is the valence of titanium and y is a number between 1 and n, with a pre-polymer having a porosity higher than 0.3 cc/g and containing from 0.5 to 100 g |
| 6777508 |
Catalysts for the polymerization of olefins |
August 17, 2004 |
| Disclosed are catalysts for the polymerization of alpha-olefins which comprise the reaction product of: (a) an Al-alkyl compound; (b) a silicon compound containing at least one Si--OR or Si--OCOR or Si--NR.sub.2 bond, R being a hydrocarbyl radical; (c) a solid comprising, as essenti |
| 6777484 |
Polypropylene graft copolymer/fluorinated polyolefin blends |
August 17, 2004 |
| The thermal stability of graft copolymers can be improved by blending (1) a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto a monomer selected from the group consisting of (a) an ester of an acrylic acid substituted at the alpha |
| 6770718 |
Continuous process for the preparation of solid catalyst components for the polymerization of .a |
August 3, 2004 |
| A process is provided for the preparation of a solid catalyst component for the polymerization of olefins, comprising continuously feeding a liquid containing a titanium compound having at least one titanium-halogen bond into a vessel containing a solid comprising a magnesium halide and |
| 6743864 |
Polyolefin compositions having high tenacity |
June 1, 2004 |
| A polyolefin composition suitable for preparing single ply roofing membranes, comprising: (A) from about 15 to about 40% by weight of a crystalline copolymer of propylene with at least one alpha-olefin of formula H.sub.2 C.dbd.CHR.sup.1, where R.sup.1 is H or a C.sub.2-8 linear or bra |
