中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.016 seconds)

    CATALYSTS
    1.
    发明申请
    CATALYSTS 有权

    公开(公告)号：US20210292355A1

    公开(公告)日：2021-09-23

    申请号：US17253770

    申请日：2019-06-28

    Applicant: BOREALIS AG

    Inventor： Noureddine AJELLAL ,  Ville VIRKKUNEN ,  Luigi Maria Cristoforo RESCONI ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Alexander Z. VOSKOBOYNIKOV ,  Jingbo WANG ,  Simon SCHWARZENBERGER ,  Wilfried Peter TÖLTSCH

    IPC: C07F17/00 ,  C08F110/06 ,  C08F4/659

    Abstract: A complex of formula (I): (I′) M is Hf; each X is a sigma ligand; L is a bridge of formula -(ER82)y—; y is 1 or 2; E is C or Si; each R8 is independently a C1-C20-hydrocarbyl, tri(C1-C20-alkyl)silyl, C6-C20- aryl, C7-C20-arylalkyl or C7-C20-alkylaryl or L is an alkylene group such as methylene or ethylene; Ar and Ar′ are each independently an aryl or heteroaryl group optionally substituted by 1 to 3 groups R1 or R1′ respectively; R1 and R1′ are each independently the same or can be different and are a linear or branched C1-C6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20 aryl group with the proviso that if there are four or more R1 and R1′ groups present in total, one or more of R1 and R1′ is other than tert butyl; R2 and R2′ are the same or are different and are a CH2—R9 group, with R9 being H or linear or branched C1-C6-alkyl group, C3-8 cycloalkyl group, C6-10 aryl group; each R is a —CH2—, —CHRx- or C(Rx)2-group wherein Rx is C1-4 alkyl and where m is 2-6; R5 is a linear or branched C1-C6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-C20-aryl group; R6 is a C(R10)3 group, with R10 being a linear or branched C1-C6 alkyl group; and R6 and R7′ are the same or are different and are H or a linear or branched C1-C6-alkyl group. Invention relates also to a catalyst in solid form comprising (i) a complex of formula (I) and (ii) a cocatalyst of an aluminium compound and (iii) a cocatalyst of a boron compound.

    CATALYST SYSTEM FOR PRODUCING POLYETHYLENE COPOLYMERS IN A HIGH TEMPERATURE SOLUTION POLYMERIZATION PROCESS
    4.
    发明申请
    CATALYST SYSTEM FOR PRODUCING POLYETHYLENE COPOLYMERS IN A HIGH TEMPERATURE SOLUTION POLYMERIZATION PROCESS 审中-公开

    公开(公告)号：US20200079887A1

    公开(公告)日：2020-03-12

    申请号：US16469617

    申请日：2017-12-12

    Applicant: BOREALIS AG

    Inventor： Noureddine AJELLAL ,  Anna FAIT ,  Luigi RESCONI

    IPC: C08F210/16

    Abstract: Catalyst system for producing ethylene copolymers in a high temperature solution process, the catalyst system comprising (i) a metallocene complex of formula (I) wherein: M is Hf or a mixture with Zr, provided that more than 50% by moles of the complex of Formula (I) has M=Hf; X is a sigma ligand; R are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C6-C10 aryl, C4-C10 heteroaryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms or silicon atoms; R1 is a C6-C10 aryl or C6-C20 alkylaryl group optionally containing up to 2 heteroatoms or silicon atoms or a C4-C10 heteroaryl group; R2 is a C4-C20 cycloalkyl group, optionally carrying alkyl substituents in beta-positions, of formula (II) in which R′ can be the same or can be different from each other and can be hydrogen or is defined as R and n is 1 to 17 (ii) a boron containing cocatalyst

    CATALYSTS
    6.
    发明申请
    CATALYSTS 审中-公开

    公开(公告)号：US20190308995A1

    公开(公告)日：2019-10-10

    申请号：US16461517

    申请日：2017-11-17

    Applicant: BOREALIS AG

    Inventor： Noureddine AJELLAL ,  Luigi RESCONI ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Alexander Z. VOSKOBOYNIKOV ,  Ville VIRKKUNEN

    IPC: C07F7/08 ,  C08F10/06 ,  C08F4/649 ,  C08F4/6592 ,  C07C1/20 ,  C07C41/00 ,  C07C45/68 ,  C07C13/32 ,  C07C49/443

    Abstract: A complex of formula (I) wherein M is zirconium or hafnium; each X independently 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 or a C1-C20-hydrocarbyl group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R′ groups taken together can form a ring; R2 and R2′ are each independently a C1-C20 hydrocarbyl group, —OC1-hydrocarbyl group or —SC1-20 hydrocarbyl group; R5 is a —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group, said R5 group being optionally substituted by one or more halo groups; R5′ is hydrogen or a C1-20 hydrocarbyl group; —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; said C1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R6 and R6′ are each independently a C1-20 hydrocarbyl group; —C1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; each R1 and R1′ are independently —CH2Rx wherein Rx are each independently H, or a C1-20 hydrocarbyl group, optionally containing heteroatoms.

    SOLVENT BASED RECYCLING PROCESS OF POLYOLEFINS
    7.
    发明公开
    SOLVENT BASED RECYCLING PROCESS OF POLYOLEFINS 审中-公开

    公开(公告)号：US20240191052A1

    公开(公告)日：2024-06-13

    申请号：US18555295

    申请日：2022-04-13

    Applicant: BOREALIS AG

    Inventor： Mohammad AL-HAJ ALI ,  Noureddine AJELLAL ,  Mubashar SATTAR ,  Erno ELOVAINIO ,  Henry SLEIJSTER

    IPC: C08J11/08 ,  B01D5/00 ,  B01D11/02

    CPC classification number: C08J11/08 ,  B01D5/0057 ,  B01D11/028 ,  C08J2300/30 ,  C08J2323/02

    Abstract: A solvent based recycling process for recycling waste polymer material, the waste polymer material comprising at least one polyolefin, the process comprising the steps of obtaining the waste polymer material comprising the at least one polyolefin; contacting the waste polymer material with at least one dissolving solvent yielding a slurry stream of polymer solution and undissolved solids; screening the slurry stream yielding the undissolved solids and a stream of the polymer solution; vapor-liquid separating the stream of the polymer solution into a polymer-lean vapor stream and a polymer-rich condensed stream; recovering the at least one polyolefin from the polymer-rich condensed stream; wherein the at least one dissolving solvent has a boiling point temperature at 1 bar of equal to or more than 70° C.

    PROCESS FOR THE PREPARATION OF SOLID CATALYST
    8.
    发明申请
    PROCESS FOR THE PREPARATION OF SOLID CATALYST 有权

    公开(公告)号：US20210179744A1

    公开(公告)日：2021-06-17

    申请号：US16771307

    申请日：2018-12-19

    Applicant: BOREALIS AG

    Inventor： Alexander REZNICHENKO ,  Noureddine AJELLAL ,  Joseph THORMAN ,  Bernard BINKS

    IPC: C08F4/6592 ,  C08F4/659 ,  C08F10/02 ,  C08F10/06 ,  C07F7/00

    Abstract: A process for the preparation of a solid olefin polymerisation catalyst or a solid olefin polymerisation catalyst component comprising the steps of: (a) forming a liquid/liquid emulsion of (i) a first organic liquid comprising at least one olefin polymerization catalyst component and (ii) an optionally halogenated hydrocarbon liquid immiscible therewith; where the first organic liquid forms the dispersed phase and the optionally halogenated hydrocarbon liquid forms the continuous phase of the liquid/liquid emulsion and wherein the dispersed phase forms droplets in the continuous phase; and (b)transforming the droplets of the dispersed phase to solid particulate particles comprising said at least one olefin polymerization catalyst component, wherein the liquid/liquid emulsion is stabilized with a solid particulate stabilizer

    BORATE-ACTIVATED METALLOCENE CATALYSTS
    9.
    发明申请
    BORATE-ACTIVATED METALLOCENE CATALYSTS 有权

    公开(公告)号：US20210108006A1

    公开(公告)日：2021-04-15

    申请号：US16499509

    申请日：2018-03-28

    Applicant: BOREALIS AG

    Inventor： Anna FAIT ,  Noureddine AJELLAL ,  Luigi Maria Cristoforo RESCONI ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Oleg SAMSONOV ,  Alexander Z. VOSKOBOYNIKOV ,  Rafael SABLONG ,  Timo SCIARONE

    IPC: C08F4/6592 ,  C08F210/16 ,  C08F4/659

    Abstract: Catalyst system, the catalyst system comprising (i) at least one metallocene complex of formula (I), (I) wherein Mt1 is Hf, X is a sigma-donor ligand, R1, R2, R3 are the same or different from each other and can be hydrogen or a saturated linear or branched C1-C10 alkyl, whereby the alkyl group can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, or R1 and R2 or R2 and R3 can form a ring having 4 to 6 C-atoms and 1 to 3 double bonds, R4 and R5 are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, n can be 1 to 5, Ar is a C6-C20-aryl or -heteroarylgroup, which can be unsubstituted or substituted by 1 to 5 linear or branched C1-C10 alkyl group(s), and (ii) a boron containing cocatalyst.

    ALUMINOXANE-ACTIVATED METALLOCENE CATALYSTS
    10.
    发明申请
    ALUMINOXANE-ACTIVATED METALLOCENE CATALYSTS 有权

    公开(公告)号：US20210095057A1

    公开(公告)日：2021-04-01

    申请号：US16499514

    申请日：2018-03-28

    Applicant: BOREALIS AG

    Inventor： Luigi Maria Cristoforo RESCONI ,  Noureddine AJELLAL ,  Anna FAIT ,  Irfan SAEED ,  Maria RANIERI ,  David QUIN ,  Vyatcheslav V. IZMER ,  Dmitry S. KONONOVICH ,  Oleg SAMSONOV ,  Alexander Z. VOSKOBOYNIKOV

    IPC: C08F4/6592 ,  C08F4/642 ,  C08F210/16

    Abstract: Catalyst system, the catalyst system comprising (i) at least one metallocene complex of formula (I) wherein Mt1 is Hf, X is a sigma-donor ligand, R1, R2, R3 are the same or different from each other and can be hydrogen or a saturated linear or branched C1-C10 alkyl, whereby the alkyl group can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, or R1 and R2 or R2 and R3 can form a ring having 4 to 6 C-atoms and 1 to 3 double bonds, R4 and R5 are the same or different from each other and can be saturated linear or branched C1-C10 alkyl, C5-C10 aryl, C6-C20 alkylaryl or C6-C20 arylalkyl groups, which can optionally contain up to 2 heteroatoms belonging to groups 14-16 of the periodic table, n can be 1 to 5, Ar is a C6-C20-aryl or -heteroaryl group, which can be unsubstituted or substituted by 1 to 5 linear or branched C1-C10 alkyl group(s), and (ii) an aluminoxane cocatalyst and (iii) optionally an aluminium alkyl compound AI(R7)3, with R7 being a linear or branched C2-C8-alkyl group.

Patent Agency Ranking