中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.025 seconds)

    PROCESS OF POLYMERIZING TETRA-FUNCTIONAL LONG-CHAIN BRANCHED POLYOLEFIN RESINS
    1.
    发明专利
    PROCESS OF POLYMERIZING TETRA-FUNCTIONAL LONG-CHAIN BRANCHED POLYOLEFIN RESINS 未知

    公开(公告)号：SG11202102949TA

    公开(公告)日：2021-04-29

    申请号：SG11202102949T

    申请日：2019-09-27

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： FROESE ROBERT D J ,  ARRIOLA DANIEL J ,  STUBBERT BRYAN D

    IPC: C08F210/18

    Abstract: The present process embodiments for synthesizing long-chain branched copolymers include contacting together one or more C2-C14 alkene monomers, at least one diene or polyene, optionally a solvent, and a multi-chain catalyst. The multi-chain catalyst includes a plurality of polymerization sites and produces at least two polymer chains of the C2-C14 alkene monomers, each polymer chain polymerizing at one of the polymerization sites. The process synthesizes the long-chain branched polymers by connecting the two polymer chains with the diene or polyene, the joining of the two polymer chains being performed in a concerted manner during the polymerization.

    Catalizadores de bis-fenil-fenoxi-poliolefina que tienen un ligando de metilentrialquilsilicio en el metal para mejorar la solubilidad
    2.
    发明专利
    Catalizadores de bis-fenil-fenoxi-poliolefina que tienen un ligando de metilentrialquilsilicio en el metal para mejorar la solubilidad 未知

    公开(公告)号：ES2911503T3

    公开(公告)日：2022-05-19

    申请号：ES18789525

    申请日：2018-09-20

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： STUBBERT BRYAN D ,  KRASOVSKIY ARKADY L ,  VAIDYA TULAZA ,  KLOSIN JERZY ,  CARNAHAN EDMUND M ,  FONTAINE PHILIP P ,  ROSEN MARI S ,  WILSON DAVID R

    IPC: C08F210/16 ,  C08F4/64 ,  C08F4/659

    Abstract: Un sistema catalítico que comprende un complejo metal-ligando según la fórmula (I): **(Ver fórmula)** donde: M es un metal elegido entre titanio, zirconio o hafnio, estando el metal en un estado de oxidación formal de +2, +3 o +4; X se selecciona del grupo que consiste en -(CH2)SiRX3, donde cada RX es independientemente un hidrocarbilo(C1- C30) o un heterohidrocarbilo(C1-C30) y al menos uno de RX es un (C2-C30)hidrocarbilo, donde dos RX cualesquiera o los tres RX están opcionalmente enlazados covalentemente; cada Z se elige independientemente de -O-, -S-, -N(RN)-, o -P(RP)-; cada uno de R1 y R16 se selecciona independientemente del grupo que consiste en -H, hidrocarbilo(C1-C40), heterohidrocarbilo(C1-C40), -Si(RC)3, -Ge(RC)3, -P(RP)2, -N(RN)2, -ORC, -SRC, -NO2, -CN, -CF3, RCS(O)-, RCS(O)2-, (RC)2C=N-, RCC(O)O-, RCOC(O)-, RCC(O)N(R)-, (RC)2NC(O)-, halógeno, radicales de fórmula (II), radicales de fórmula (III) y radicales de fórmula (IV): **(Ver fórmula)** donde cada uno de R31-35, R41-48 y R51-59 se elige independientemente de -H, hidrocarbilo(C1-C40), heterohidrocarbilo(C1-C40), -Si(RC)3, -Ge(RC)3, -P(RP)2, -N(RN)2, -ORC, -SRC, -NO2, -CN, -CF3, RCS(O)-, RCS(O)2-, (RC)2C=N-, RCC(O)O-, RCOC(O)-, RCC(O)N(RN)-, (RC)2NC(O)-, o halógeno, siempre que al menos uno de R1 o R16 sea un radical de fórmula (II), un radical de fórmula (III) o un radical de fórmula (IV); cada uno de R2-4, R5-8, R9-12 y R13-15 se selecciona independientemente de -H, hidrocarbilo(C1-C40), heterohidrocarbilo(C1-C40), -Si(RC)3, -Ge(RC)3, -P(RP)2, -N(RN)2, -ORC, -SRC, -NO2, -CN, -CF3, RCS(O)-, RCS(O)2-, (RC)2C=N-, RCC(O)O-, RCOC(O)-, RCC(O)N(R)-, (RC)2NC(O)-, y halógeno; L es (C2-C40)hidrocarbileno o (C2-C40)heterohidrocarbileno; y cada RC, RP y RN en la fórmula (I) es independientemente un (C1-C30)hidrocarbilo, (C1-C30)heterohidrocarbilo, o -H.

    PROCESS OF POLYMERIZING TRI-FUNCTIONAL LONG-CHAIN BRANCHED OLEFIN
    4.
    发明专利
    PROCESS OF POLYMERIZING TRI-FUNCTIONAL LONG-CHAIN BRANCHED OLEFIN 未知

    公开(公告)号：SG11202109433WA

    公开(公告)日：2021-10-28

    申请号：SG11202109433W

    申请日：2020-03-27

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： FROESE ROBERT DJ ,  STUBBERT BRYAN D ,  ARRIOLA DANIEL J ,  BROONER RACHEL E M ,  REDWINE OSCAR D

    IPC: C08F210/18 ,  C08F4/64

    Abstract: Processes of synthesizing long-chain branched polymers. The processes include contacting together one or more C2-C14 alkene monomers, at least one diene, optionally a solvent, and a multi-chain catalyst optionally in the presence of hydrogen, wherein the multi-chain catalyst comprises a plurality of polymerization sites; producing at least two polymer chains of the C2-C14 alkene monomers, each polymer chain polymerizing at one of the polymerization sites; synthesizing the long-chain branched polymers by connecting the two polymer chains with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization; and producing tri-functional long chain branches from the diene, wherein the tri-functional long chain branches occur at a frequency of at least 0.03 per 1000 carbon atoms. The diene has a structure according to formula (I):

    PROCESS OF POLYMERIZING TRI-FUNCTIONAL LONG-CHAIN BRANCHED OLEFIN
    5.
    发明专利
    PROCESS OF POLYMERIZING TRI-FUNCTIONAL LONG-CHAIN BRANCHED OLEFIN 未知

    公开(公告)号：SG11202109432QA

    公开(公告)日：2021-10-28

    申请号：SG11202109432Q

    申请日：2020-03-27

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： FROESE ROBERT DJ ,  BROONER RACHEL E M ,  ARRIOLA DANIEL J ,  STUBBERT BRYAN D ,  REDWINE OSCAR D

    IPC: C08F210/18 ,  C08F4/64

    Abstract: Processes of synthesizing long-chain branched polymers. The processes include contacting together one or more C2-C14 alkene monomers, at least one diene, optionally a solvent, and a multi-chain catalyst optionally in the presence of hydrogen, wherein the multi-chain catalyst comprises a plurality of polymerization sites; producing at least two polymer chains of the C2-C14 alkene monomers, each polymer chain polymerizing at one of the polymerization sites; synthesizing the long-chain branched polymers by connecting the two polymer chains with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization; and producing tri-functional long chain branches and tetra-functional long chain branches from the diene, wherein the long-chain branched polymers have a ratio of tri-functional to tetra-functional long chain branches from 0.05:1 to 100:0; and adjusting the ratio of tri-functional and tetra-functional long chain branches. The diene has a structure according to formula (I):

    TETRA-FUNCTIONAL LONG-CHAIN BRANCHED ETHYLENE-BASED POLYMERS
    6.
    发明专利
    TETRA-FUNCTIONAL LONG-CHAIN BRANCHED ETHYLENE-BASED POLYMERS 未知

    公开(公告)号：SG11202102950WA

    公开(公告)日：2021-04-29

    申请号：SG11202102950W

    申请日：2019-09-27

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： FROESE ROBERT D J ,  ARRIOLA DANIEL J ,  KASHYAP TERESITA ,  STUBBERT BRYAN D

    IPC: C08F210/16

    Abstract: Ethylene-based polymers comprise reaction products of polymerizing ethylene monomer, at least one diene or polyene comonomer, and optionally at least one C3 to C14 comonomer under defined polymerization reaction conditions, the ethylene-based polymer having: an Mw/Mw0 greater than 1.20. The Mw0 is the initial weight-average molecular weight of a comparative ethylene-based polymer by gel permeation chromatography. The comparative ethylene-based polymer being a reaction product of polymerizing ethylene monomer and all C3 to C14 comonomers present in the ethylene-based polymer, if any, without the at least one polyene comonomer, under the defined polymerization reaction conditions; and a molecular weight tail quantified by an MWD area metric, ATAIL, and ATAIL is less than or equal to 0.04 as determined by gel permeation chromatography using a triple detector.

Patent Agency Ranking