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    Catalyst components for the polymerization of olefins
    2.
    发明授权
    Catalyst components for the polymerization of olefins 有权

    公开(公告)号：US10759882B2

    公开(公告)日：2020-09-01

    申请号：US16337779

    申请日：2017-09-25

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Simona Guidotti ,  Tiziano Dall'Occo ,  Dario Liguori ,  Giampiero Morini

    IPC: C08F10/02 ,  C08F210/16

    Abstract: A process for the preparation of a solid catalyst component for the homo or copolymerization of olefins, wherein the solid catalyst component is made from or contains Mg, Ti, halogen and an electron donor selected from cycloalkyl ethers, wherein the process includes the steps of (a) dissolving a Mg based compound and a TiCl3 based compound in a liquid medium further made from or containing a cycloalkyl ether and a compound of formula R2OH where R2 is a C1-C20 hydrocarbon group, in which the Ti/Mg molar ratio ranges from 0.1 to 0.5, the cycloalkyl ether/Mg ratio ranges from 1 to 4 and the ROH/Mg molar ratio ranges from 1 to 4; and (b) adding, to the solution coming from step (a), SiCl4 in an amount such that the R2OH/SiCl4 molar ratio ranges from 0.5 to 1.5 and maintaining the temperature in the range 50-150° C. thereby precipitating the solid catalyst component particles.

    Components and catalysts for the polymerization of olefins
    7.
    发明授权
    Components and catalysts for the polymerization of olefins 有权

    公开(公告)号：US11220519B2

    公开(公告)日：2022-01-11

    申请号：US17267601

    申请日：2019-07-25

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Simona Guidotti ,  Dario Liguori ,  Giampiero Morini ,  Gianni Vitale

    IPC: C07F7/28 ,  C07F3/02 ,  C07F9/94 ,  C08F210/06

    Abstract: A solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, made from or containing Mg, Ti, Bi, halogen and an electron donor obtained from a process including the steps:
    (a) dissolving a Mg(OR)2 compound wherein R groups, equal to or different from each other, are C1-C15 hydrocarbon groups optionally containing a heteroatom selected from O, N and halogen, in an organic liquid medium, thereby forming a first liquid mixture;
    (b) contacting the first liquid mixture (a) with TiCl4, thereby forming a second liquid mixture absent a solid phase, and
    (c) subjecting the second liquid mixture (b) to conditions, whereby solid catalyst particles are formed,
    wherein (i) a Bi compound and (ii) a bidentate electron donor compound are present in one or more of steps (a) to (c) and/or contacted with the solid catalyst particles obtained from (c).

    Catalyst components for the polymerization of olefins
    9.
    发明授权
    Catalyst components for the polymerization of olefins 有权

    公开(公告)号：US10584192B2

    公开(公告)日：2020-03-10

    申请号：US16097103

    申请日：2017-04-24

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Simona Guidotti ,  Tiziano Dall'Occo ,  Dario Liguori ,  Giampiero Morini

    IPC: C08F10/02

    Abstract: The present disclosure provides a solid catalyst component obtainable by a process including: (a) a first step in which Ti(OEt)4, is reacted with a Mg based compound of formula MgCln(ORI)2-n, where n is from about 0.5 to about 1.5, RI is a C1-C10 alkyl groups, the Ti(OEt)4 and the Mg compound are used in amounts such that the Ti/Mg molar ratio is of about 0.2 to about 0.4, the reaction temperature is about 110 to about 130° C., and the reaction time is about 2 to about 5 hours; and (b) a subsequent step in which the product obtained in step (a) is reacted with a Ti compound of the formula Ti(ORI)4-yCly, where y is a number between 3 and 4.

    Catalyst for the polymerization of olefins
    10.
    发明授权
    Catalyst for the polymerization of olefins 有权

    公开(公告)号：US10562990B2

    公开(公告)日：2020-02-18

    申请号：US15759143

    申请日：2016-08-30

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Fabrizio Piemontesi ,  Gianni Vitale ,  Dario Liguori ,  Giampiero Morini

    IPC: B01J23/18 ,  C08F4/20 ,  C08F4/18 ,  B01J21/06 ,  C08F10/06

    Abstract: A catalyst for the homopolymerization or copolymerization of CH2═CHR olefins, made from or containing the product obtained by contacting: (i) a solid catalyst component made from or containing Ti, Mg, Cl, and an internal electron donor compound, wherein the solid catalyst component contains from about 0.1 to about 50 wt % of Bi, based upon the total weight of the solid catalyst component; (ii) an alkyl aluminum compound and, (iii) an external electron donor compound having the formula: (R1)aSi(OR2)b wherein R1 and R2 are independently selected from the group consisting of alkyl radicals with 1-8 carbon atoms and a is 0 or 1 and a+b=4.

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