IN-LINE BLENDING OF PLASTICIZERS WITH A BASE POLYMER
    4.
    发明公开
    IN-LINE BLENDING OF PLASTICIZERS WITH A BASE POLYMER 有权
    IN-LINE混合的基础聚合物增塑剂

    公开(公告)号:EP2201042A1

    公开(公告)日:2010-06-30

    申请号:EP08831077.6

    申请日:2008-09-09

    Abstract: A process for in-line blending of plasticizers and polymers in a single reactor train including one or more serially configured reactors, a high-pressure separator downstream fluidly connected to the train, and one or more storage tanks, wherein the train produces one or more base polymer components and the one or more storage tanks store one or more off-line produced plasticizers; contacting in the reactor train olefin monomers, catalyst systems and optional comonomers, scavengers, diluents or solvents, at a temperature above the solid-fluid phase transition temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa, forming a reactor effluent including a homogeneous mixture; passing the reactor effluent through theseparator to separate a monomer-rich phase from a polymer-rich phase; and feeding the plasticizers to the process after the reactor train.

    POLYMER PRODUCTION AT SUPERCRITICAL CONDITIONS
    5.
    发明公开
    POLYMER PRODUCTION AT SUPERCRITICAL CONDITIONS 审中-公开
    超临界条件下制备的聚合物

    公开(公告)号:EP2094743A1

    公开(公告)日:2009-09-02

    申请号:EP07868822.3

    申请日:2007-11-21

    Abstract: This invention relates to a process to polymerize olefins comprising contacting, at a temperature of 600C or more and a pressure of at least 15 MPa, one or more olefin monomers having three or more carbon atoms, with: 1) a catalyst system comprising one or more activators and one or more nonmetallocene metal-centered, heteroaryl ligand catalyst compounds, where the metal is chosen from the Group 4, 5, 6, the lanthanide series, or the actinide series of the Periodic Table of the Elements, 2) optionally one or more comonomers, 3) optionally diluent or solvent, and 40 optionally solvent, wherein: a) the olefin monomers and any comonomers are present in the polymerization system at 40 weight % or more, b) the monomer having three or more carbon atoms is present at 80 wt% or more based upon the weight of all monomers and comonomers present in the feed, c) the polymerization occurs at a temperature above the solid- fluid phase transition temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa, in the event the solid-fluid phase transition temperature of the polymerization system cannot be determined then the polymerization occurs at a temperature above the fluid fluid phase transition temperature.

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