Catalyst components for the polymerization of olefins

    公开(公告)号:US10759882B2

    公开(公告)日:2020-09-01

    申请号:US16337779

    申请日:2017-09-25

    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.

    CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    5.
    发明申请
    CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 有权
    用于烯烃聚合的催化组分

    公开(公告)号:US20140243490A1

    公开(公告)日:2014-08-28

    申请号:US14352251

    申请日:2012-10-10

    CPC classification number: C08F4/52 C08F110/06 C08F2500/12 C08F4/651 C08F4/6545

    Abstract: Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) In which R to R4 groups, equal to or different from each other, are hydrogen, halogen or C1-C15 hydrocarbon groups, optionally containing an heteroatom selected from halogen, P, S, N and Si, which may be linked to form a saturated or unsaturated mono or polycycle and R5 groups are selected from C1-C15 hydrocarbon groups optionally containing an heteroatom selected from halogen, P, S, N and Si.

    Abstract translation: 用于包含Mg,Ti和下式(I)的电子给体化合物的烯烃聚合的催化剂组分其中R至R 4基团彼此相同或不同的是氢,卤素或C 1 -C 15烃基,任选地 含有选自卤素,P,S,N和Si的杂原子,其可连接形成饱和或不饱和单或多环和R 5基团,其选自任选含有选自卤素,P,S的杂原子的C 1 -C 15烃基 ,N和Si。

    Components and catalysts for the polymerization of olefins

    公开(公告)号:US11220519B2

    公开(公告)日:2022-01-11

    申请号:US17267601

    申请日:2019-07-25

    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

    公开(公告)号:US10584192B2

    公开(公告)日:2020-03-10

    申请号:US16097103

    申请日:2017-04-24

    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.

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