Basell Poliolefine Italia, S.p.a.

Basell Poliolefine Italia S.r.l.

Montell Technology Company Bv

Basell Technology Company B.v.

Montell North America Inc.

Himont Incorporated

Giulio Balbontin

Giampiero Morini

Antonio Cristofori

Enrico Albizzati

Yuri V Gulevich

Gianni Vitale

John Chadwick

Tiziano Dall'Occo

Giovanni Baruzzi

Yuri Gulevich

Luigi Resconi

Remco Kelder

Ronald R Andrea

Van Loon Jan Dirk

Fabrizio Piemontesi

Ilya Nifant'ev

Giansiro Prini

Maria Fusto

Peter A A Klusener

Peter Aa Klusener

Henricus P B Duijghuisen

Jan Dirk Van Loon

Franciscus M Korndorffer

Dario Conti

The present invention relates to a solid catalyst component for the polymerization of olefins CH&#x2550;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 y-butyrolactone derivatives of a particular formula. Said catalyst components, when used in the polymerization of olefins and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

Components and catalysts for the polymerization of olefins

The present invention relates to a solid catalyst component for the polymerization of olefins CH&#x2550;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 &#x3b2;-keto-ester derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

Components and catalysis for the polymerization of olefins

The present invention relates to MgCl.(EtOH),(ROH)(HO)adduct in which R is a C1-C15 hydrocarbon group different from ethyl, n and m are indexes, higher than 0, satisfying the equations (n+m)&#x2267;0.7 and 0.05&#x2266;n/(n+m)&#x2266;0.95 and p is a number ranging from 0 to 0.7 with the proviso that when R is methyl and (n+m) is in the range of 0.7 to 1, the value of n/(n+m) ranges from 0.05 to 0.45. The catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity with respect to the catalysts prepared from the adducts of the prior art.

Magnesium dichloride-alcohol adducts and catalyst components obtained therefrom

An internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C&#x2013;Calkyl group, Ris a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and Ris a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom.

Catalyst component for the (CO)polymerization of olefins

The present invention relates to a solid catalyst component for the polymerization of olefins CH&#x2550;CHR in which R is hydrogen or a hydrocarbon radical with 1&#x2013;12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from succinates, said catalyst component being obtainable by a process comprising the following steps: (a) dissolving a halide of magnesium in a solvent system comprising an organic epoxy compound or an organic phosphorus compound and optionally an inert diluent to form a solution; (b) mixing the obtained solution with a titanium compound to form a mixture; (c) precipitating a solid from the mixture obtained in step (b) in the presence of a succinate and/or an auxiliary precipitant; (d) if a succinate is not used in step (c), contacting the solid obtained in (c) with a succinate, and (e) treating the solid obtained in (c) or (d) with a titanium compound optionally in the presence of an inert diluent.

The present invention relates to propylene polymers made by using 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 from 20 to 50% by mol with respect to the total amount of donors, is selected from esters of succinic acids which are not extractable, under the conditions described below, for more than 25% by mol and at least another electron donor compound which is extractable, under the same conditions, for more than 35%. The said catalyst component are capable to give polymers with high xylene insolubility, high stereoblock content and broad MWD suitable for making the polymers usable in the BOPP sector.

Propylene polymers

A process for the (co) polymerization of olefins of formula CH&#x2550;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-&#x3c0; bonds, Mg, halogen and optionally an electron donor compound; (b) an Al-alkyl compound; and (c) one or more non-polymerizing olefins in an amount up to 1.2% by mol with respect to the total olefins present in the reactor.

Process for the polymerization of olefins

Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of:

1,3-diethers and components and catalysts for the polymerization of olefins, containing said diethers

The present invention relates to a solid catalyst component for the polymerization of olefins CH&#x2550;CHR in which R is hydrogen or a hydrocarbon radical with 1&#x2013;12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from maleates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

A solid catalyst component for the polymerization of olefins, comprising: an inert porous support, Mg, Ti, halogen and an electron donor selected from succinates of formula (I) wherein the radicals Rand Requal to or different form each other, are hydrocarbon groups, the radicals R, R, Rand R, equal to or different from each other, are hydrogen or hydrocarbon groups.

Catalyst system for the polymerization of olefins

Solid catalyst components comprising Ti,Mg, halogen and internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C-Calkyl group, Ris a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and Ris a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom. The catalysts obtained by using as internal electron-donor compound the said 1,3-diethers display in the (co)polymerization of olefins an excellent balance of activity and stereospecificity that cannot be reached with the ethers known in the art.

Components and catalysts for the (co)polymerization of olefins

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 from 20 to 50% by mol with respect to the total amount of donors, is selected from esters of succinic acids which are not extractable, for more than 25% by mol and at least another electron donor compound which is extractable, for more than 35%. The said catalyst component are capable to give polymers with high xylene insolubility, high stereoblock content and broad MWD suitable for making the polymers usable in the BOPP sector.

Catalyst components for the polymerization of olefins

The present invention relates to a solid catalyst component for the polymerization of olefins CH &boxH;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 formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

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Ferrara, Italy

Giulio Balbontin