中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.019 seconds)

    HETEROPHASIC PROPYLENE ETHYLENE COPOLYMER COMPOSITION WITH DESIRABLE BALANCE OF MECHANICAL PROPERTIES
    3.
    发明申请
    HETEROPHASIC PROPYLENE ETHYLENE COPOLYMER COMPOSITION WITH DESIRABLE BALANCE OF MECHANICAL PROPERTIES 有权

    公开(公告)号：US20220396695A1

    公开(公告)日：2022-12-15

    申请号：US17773722

    申请日：2020-11-02

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Luigi Resconi ,  Markus Gahleitner ,  Klaus Bernreitner ,  Wilfried Töltsch

    IPC: C08L23/16 ,  C08L23/12 ,  C08F10/06

    Abstract: A heterophasic propylene ethylene copolymer composition having an MFR2 in the range from 1.0 to 55.0 g/10 min and a melting temperature in the range from 155 to 162° C., comprising: i) from 60 to 88 wt.-% of a xylene cold insoluble fraction (XCI) having an intrinsic viscosity iV(XCI) in the range from 1.40 to 2.50 dl/g, an isotactic pentad concentration [mmmm] of more than 97.0% and a content of 2,1-regiodefects in the range from 0.1 to 0.4 mol %, ii) from 12 to 40 wt.-% of a xylene cold soluble fraction (XCS) having an intrinsic viscosity iV(XCS) in the range from 1.80 to 3.20 dl/g and an ethylene content C2(XCS) in the range from 25 to 80 wt.-%, wherein the ratio of the intrinsic viscosities of the two fractions, iV(XCS)/iV(XCI), is in the range from 1.0 to 2.0.

    Process for the preparation of copolymers of propylene
    4.
    发明授权
    Process for the preparation of copolymers of propylene 有权

    公开(公告)号：US10081686B2

    公开(公告)日：2018-09-25

    申请号：US15510040

    申请日：2015-09-11

    Applicant: BOREALIS AG

    Inventor： Luigi Resconi ,  Wilfried Töltsch ,  Jingbo Wang

    IPC: C08F4/00 ,  C08F4/06 ,  C08F32/00 ,  C08F4/16 ,  C08F210/02 ,  C08F210/06 ,  B01J35/02

    CPC classification number: C08F4/16 ,  B01J35/026 ,  C08F2/38 ,  C08F210/02 ,  C08F210/06 ,  C08F2500/10 ,  C08F2500/17 ,  C08F4/65927 ,  C08F2500/12

    Abstract: A process for the preparation of a copolymer of propylene and ethylene comprising polymerizing propylene and ethylene in the gas phase in the presence of a solid particulate catalyst free from an external carrier comprising: (i) a symmetrical complex of formula (I), wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; R2 is a C1-C20 hydrocarbyl radical; m is 2 to 5; R9 is a H or C1-C20 hydrocarbyl radical; R7 is a hydrogen atom or a C1-10 hydrocarbyl radical; n is 0 to 3; R1 is a C1-C20 hydrocarbyl radical and optionally two adjacent R1 groups taken together can form a further mono or multicyclic ring condensed to Ph ring optionally substituted by one or two groups R4; and R4 is a C1-C10 alkyl radical; and (ii) a cocatalyst, preferably comprising an organometallic compound of a Group 13 metal; wherein the xylene soluble fraction of the propylene ethylene copolymer has an ethylene content of at least 10 wt % and an intrinsic viscosity of at least 1.2 dl/g.

    PROCESS
    5.
    发明申请
    PROCESS 审中-公开
    处理

    公开(公告)号：US20160168285A1

    公开(公告)日：2016-06-16

    申请号：US14906640

    申请日：2014-07-22

    Applicant: BOREALIS AG

    Inventor： Luigi Resconi ,  Wilfried Töltsch ,  Noureddine Ajellal ,  Ville Virkkunen ,  Ismo Lehtiniemi

    IPC: C08F110/06

    CPC classification number: C08F110/06 ,  C08F4/65908 ,  C08F4/65912 ,  C08F2410/01 ,  C08F2/001 ,  C08F2500/12 ,  C08F10/00 ,  C08F4/65927

    Abstract: A process for the preparation of a propylene homopolymer in a multistage polymerisation process in the presence of a single site catalyst, said process comprising: (I) in a slurry polymerisation step, polymerising propylene in the presence of said single site catalyst; and subsequently (II) in a gas polymerisation step polymerising propylene in the presence of catalyst and polymer from step (I) so as to form a propylene homopolymer; wherein said catalyst comprises (i) a metallocene complex of a Group 4 metal, said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron based cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.

    Abstract translation: 一种在多段聚合方法中在单中心催化剂存在下制备丙烯均聚物的方法，所述方法包括：（I）在淤浆聚合步骤中，在所述单中心催化剂存在下聚合丙烯; 和随后（II）在气相聚合步骤中，在步骤（I）的催化剂和聚合物存在下聚合丙烯以形成丙烯均聚物; 其中所述催化剂包含（i）第4族金属的茂金属络合物，所述金属茂包含至少两个环戊二烯基型配体; （ii）硼基助催化剂; 和（iii）铝氧烷助催化剂; 所述催化剂为固体形式，优选为固体颗粒形式，并且不含外部载体。

    Process for producing propylene copolymers in gas phase
    7.
    发明授权
    Process for producing propylene copolymers in gas phase 有权

    公开(公告)号：US10364307B2

    公开(公告)日：2019-07-30

    申请号：US15510030

    申请日：2015-09-11

    Applicant: BOREALIS AG

    Inventor： Luigi Resconi ,  Norbert Hafner ,  Wilfried Töltsch

    IPC: C08L23/16 ,  C08L23/14 ,  C08F210/06 ,  C08F4/6592 ,  C08F2/38 ,  C08F4/659

    Abstract: A process for the preparation of a heterophasic copolymer of propylene and ethylene comprising polymerizing propylene and ethylene in the gas phase in the presence of a solid particulate catalyst free from an external carrier comprising: (i) a symmetrical complex of formula (I), wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R′2C—, —R′2C—CR′2-, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; R2 is a C1-C20 hydrocarbyl radical; R5 is a C1-C20 hydrocarbyl radical; R6 is a tertiary C4-C20 hydrocarbyl radical; R7 is a hydrogen atom or a C1-10-hydrocarbyl radical; n is 0 to 3; R1 is a C1-C20 hydrocarbyl radical and optionally two adjacent R1 groups taken together can form a further mono or multicyclic ring condensed to Ph ring optionally substituted by one or two groups R4; and R4 is a C1-C10 alkyl radical and (ii) a cocatalyst, preferably comprising an organometallic compound of a Group 13 metal; wherein the xylene soluble fraction (XS) of the heterophasic copolymer of propylene and ethylene has an intrinsic viscosity of at least 1.5 dl/g and an ethylene content of 10 to 70 wt %.

    PROCESS
    8.
    发明申请
    PROCESS 有权
    处理

    公开(公告)号：US20160176997A1

    公开(公告)日：2016-06-23

    申请号：US14906627

    申请日：2014-07-22

    Applicant: BOREALIS AG

    Inventor： Luigi Resconi ,  Wilfried Töltsch ,  Wang Jingbo

    IPC: C08F210/16

    CPC classification number: C08F210/16 ,  C08F4/65908 ,  C08F4/65912 ,  C08F210/06 ,  C08F2410/01 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F10/00 ,  C08F4/65927

    Abstract: A process for the preparation of a propylene copolymer, preferably a heterophasic propylene copolymer, in a multistage polymerisation process in the presence of a single site catalyst, said process comprising: (I) in a slurry polymerisation step, polymerising propylene and optionally at least one C2-10 alpha olefin comonomer; and subsequently (II) in a gas polymerisation step polymerising propylene and optionally at least one C2-10 alpha olefin comonomer, in the presence of catalyst and polymer from step (I); (III) in a second gas polymerisation step, polymerising propylene and at least one C2-10 alpha olefin comonomer in the presence of the catalyst and polymer from step (II); wherein said catalyst comprises (i) a metallocene complex of a group (IV) metal, said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron based cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.

    Abstract translation: 一种在单段聚合方法中在单段聚合方法中制备丙烯共聚物，优选多相丙烯共聚物的方法，所述方法包括：（I）在淤浆聚合步骤中，聚合丙烯和任选的至少一种 C2-10α-烯烃共聚单体; 和随后（II）在气相聚合步骤中在步骤（I）的催化剂和聚合物存在下聚合丙烯和任选的至少一种C 2-10α-烯烃共聚单体; （III）在第二气体聚合步骤中，在催化剂和来自步骤（II）的聚合物的存在下聚合丙烯和至少一种C 2-10α-烯烃共聚单体; 其中所述催化剂包含（i）金属Ⅳ族金属茂金属络合物，所述金属茂包含至少两个环戊二烯基型配体; （ii）硼基助催化剂; 和（iii）铝氧烷助催化剂; 所述催化剂为固体形式，优选为固体颗粒形式，并且不含外部载体。

    PROCESS FOR PREPARING POLYMER COMPOSITIONS
    10.
    发明申请
    PROCESS FOR PREPARING POLYMER COMPOSITIONS 审中-公开

    公开(公告)号：US20190002610A1

    公开(公告)日：2019-01-03

    申请号：US15735891

    申请日：2016-06-29

    Applicant: BOREALIS AG

    Inventor： Wilfried Töltsch ,  Luigi Resconi ,  Kristin Reichelt

    IPC: C08F210/06 ,  C08J5/18 ,  B32B27/08 ,  B32B27/32

    Abstract: The present invention relates to an olefin polymerization process, wherein propylene and a C4 to C10 α-olefin monomer, preferably 1-butene- and optionally ethylene are reacted in the presence of a Ziegler-Natta catalyst so as to obtain a polypropylene, wherein the polypropylene comprises C4 to C10 α-olefin, preferably 1-butene-derived comonomer units in an amount of from 0,5 to 15 wt % and ethylene-derived comonomer units in an amount of 0 to 3 wt %, and wherein the Ziegler-Natta catalyst comprises i) an external donor of the formula (I): (R3)z(R2O)ySi(R1)x, and ii) a solid catalyst component being free of external carrier material.

Patent Agency Ranking