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    APPARATUS AND METHOD OF USE THEREOF
    1.
    发明申请
    APPARATUS AND METHOD OF USE THEREOF 有权

    公开(公告)号：US20250060167A1

    公开(公告)日：2025-02-20

    申请号：US18937820

    申请日：2024-11-05

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Maria Pollard ,  Sean W. Ewart ,  Mark B. Davis ,  Bradley K. Blanchard

    IPC: F28D9/00 ,  C08F6/00 ,  C08F6/12 ,  F28F3/08

    Abstract: Disclosed herein is an apparatus comprising a shell; the shell having an inlet port for introducing a polymer solution into the shell and an outlet port for removing the polymer solution from the shell; wherein the polymer solution comprises a polymer and a solvent that is operative to dissolve the polymer; a plurality of plates in the shell; where the plurality of plates is stacked one atop the other to define a central passage that is in fluid communication with the inlet port of the shell; where the plurality of plates further defines a plurality of conduits, each conduit extending radially outwards from the central passage, where the plurality of conduits is in fluid communication with the central passage; and where the apparatus is operated at a pressure and a temperature effective to maintain the polymer solution in a single phase during its travel through the apparatus.

    Process for Producing a Polyolefin with Low Volatile Content
    3.
    发明申请
    Process for Producing a Polyolefin with Low Volatile Content 有权

    公开(公告)号：US20240384011A1

    公开(公告)日：2024-11-21

    申请号：US18683818

    申请日：2022-08-09

    Applicant: BOREALIS AG

    Inventor： Mohammad AL-HAJ ALI ,  Henry SLEIJSTER

    IPC: C08F6/00

    Abstract: A process for the separation of at least one polyolefin from a product stream from a solution polymerization process, wherein the product stream comprises the at least one polyolefin and a mixture of volatiles, the process comprising the steps of separating the product stream into a first polyolefin-lean vapor stream and a first condensed polyolefin-rich stream; separating the first condensed polyolefin-rich stream into a second polyolefin-lean vapor stream and a second condensed polyolefin-rich stream; separating the second condensed first condensed polyolefin-rich stream into a last polyolefin-lean vapor stream and a last condensed polyolefin-rich stream; characterized in that the first polyolefin-lean vapor stream and the second polyolefin-lean vapor stream are introduced into an initial feed stream of the solution polymerization process without any further purification step.

    PROCESS FOR PRODUCING A THERMOPLASTIC MOULDING COMPOUND COMPRISING A THERMOPLASTIC COPOLYMER A AND A GRAFT COPOLYMER B
    8.
    发明公开
    PROCESS FOR PRODUCING A THERMOPLASTIC MOULDING COMPOUND COMPRISING A THERMOPLASTIC COPOLYMER A AND A GRAFT COPOLYMER B 审中-公开

    公开(公告)号：US20240218090A1

    公开(公告)日：2024-07-04

    申请号：US18546728

    申请日：2022-02-15

    Applicant: INEOS STYROLUTION GROUP GMBH

    Inventor： Wolfgang FISCHER

    IPC: C08F6/22 ,  B01D21/26 ,  C08F6/00 ,  C08F212/10 ,  C08F257/02 ,  F26B3/084 ,  F26B21/10 ,  F26B21/14

    CPC classification number: C08F6/22 ,  B01D21/262 ,  C08F6/008 ,  C08F212/10 ,  C08F257/02 ,  F26B3/084 ,  F26B21/10 ,  F26B21/14

    Abstract: The invention relates to a process for producing a thermoplastic moulding compound comprising a thermoplastic copolymer A and a graft copolymer B (4), comprising: continuously drying the dewatered graft copolymer B (4) by supplying a drying gas (3) and the dewatered graft copolymer B (4), by moving the dewatered graft copolymer B (4) through the drying gas (3) and forming a fluidized bed (5), the drying gas (3) having a feed temperature TG,feed in the range from 50° C. to 160° C., and by removing dried graft copolymer B (4) and an offgas (7), wherein i. a starting temperature Tin of the fluidized bed (5) on feeding (9) of the dewatered graft copolymer B (4) is measured, ii. a finish temperature Tout of the fluidized bed (5) on removal (11) of the dried graft copolymer B (4) and/or of the offgas (7) is measured, iii. a difference ΔTact between the finish temperature Tout and the starting temperature Tin is formed and the difference ΔTact is compared with a target value ΔTtarget, and iv. the finish temperature Tout is adjusted by—increasing a mass flow rate of drying gas (3) supplied and/or the feed temperature TG,feed of the drying gas (3) when the difference ΔTact is smaller than the target value ΔTtarget or—reducing a mass flow rate of drying gas (3) supplied and/or the feed temperature TG,feed of the drying gas (3) when the difference ΔTact is greater than the target value ΔTtarget.

    OPTICAL GRADE MOULDING COMPOSITIONS HAVING INCREASED HEAT RESISTANCE
    10.
    发明公开
    OPTICAL GRADE MOULDING COMPOSITIONS HAVING INCREASED HEAT RESISTANCE 审中-公开

    公开(公告)号：US20240043591A1

    公开(公告)日：2024-02-08

    申请号：US18256318

    申请日：2021-12-08

    Applicant: Röhm GmbH

    Inventor： Rüdiger Carloff ,  Werner Arnold ,  Gerald Dietrich

    IPC: C08F220/14 ,  C08F6/00

    CPC classification number: C08F220/14 ,  C08F6/005

    Abstract: A process can be used for manufacturing an acrylic copolymer having increased heat resistance, high transparency, and improved adhesion to metal surfaces. The process involves polymerizing a monomer mixture, optional heating of the copolymer mixture, and removing volatile components from the copolymer mixture by degassing. Moulding compositions containing this copolymer are highly suitable for manufacturing optical elements for optoelectronic devices containing acrylic and metallic or ceramic parts.

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