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    PROCESS AND SUPPLY UNIT FOR RESTABILIZING FREE-RADICALLY POLYMERIZABLE MONOMERS
    3.
    发明申请
    PROCESS AND SUPPLY UNIT FOR RESTABILIZING FREE-RADICALLY POLYMERIZABLE MONOMERS 有权
    自由可聚合单体的再利用过程和供应单元

    公开(公告)号：US20140319417A1

    公开(公告)日：2014-10-30

    申请号：US14261932

    申请日：2014-04-25

    Applicant: BASF SE

    Inventor： Friedrich-Georg MARTIN ,  OLIVER ODENWALD

    IPC: C07B63/04

    CPC classification number: C07B63/04 ,  B01J4/001 ,  B01J19/002 ,  B01J2219/00272

    Abstract: The present invention relates to a process for restabilizing free-radically polymerizable monomers. The process comprises the steps: (a) introduction of a solution of an inhibitor of the free-radical polymerization by means of an inert pressurized gas into a vessel (1) comprising the monomers via a line (10) which comprises an ascending region, and (b) mixing of the contents of the vessel and the inhibitor solution by blowing gas through the line (10). In step (a), the flow velocity of the pressurized gas is set so that plug flow or annular flow is obtained as flow regime of the inhibitor solution and in step (b) the superficial gas velocity is set to ≧0.1 mm/s. The present invention further relates to a supply unit (11) for carrying out the process.

    Abstract translation: 本发明涉及可自由基聚合的单体的再稳定化方法。 该方法包括以下步骤：（a）通过惰性加压气体将自由基聚合抑制剂的溶液通过包括上升区域的管线（10）引入包含单体的容器（1）中， 和（b）通过将管线（10）吹入气体来混合容器的内容物和抑制剂溶液。 在步骤（a）中，设定加压气体的流速，使阻塞溶液的流动状态获得塞流或环流，在步骤（b）中，表观气体速度设定为≥0.1mm/ s。 本发明还涉及一种用于执行该过程的供应单元（11）。

    SHELF LIFE- AND TRANSPORT STABILIZERS FOR POLYMERIZABLE COMPOUNDS
    5.
    发明公开
    SHELF LIFE- AND TRANSPORT STABILIZERS FOR POLYMERIZABLE COMPOUNDS 审中-公开

    公开(公告)号：US20230348694A1

    公开(公告)日：2023-11-02

    申请号：US17780573

    申请日：2020-11-23

    Applicant: BASF SE

    Inventor： Sylke HAREMZA ,  Friedrich-Georg MARTIN ,  Doris KREMZOW-GRAW ,  Rebecca SURE ,  Juergen ROMEIS ,  Korwin SCHELKLE ,  Friederike FLEISCHHAKER ,  Jan Niclas GORGES

    IPC: C08K5/3445 ,  C08F220/06 ,  C08F220/14 ,  C08F220/18

    CPC classification number: C08K5/3445 ,  C08F220/06 ,  C08F220/14 ,  C08F220/1802 ,  C08F220/1804 ,  C08F220/1808

    Abstract: A mixture comprising one or more compounds of the general formula (II)






    where
    R6 is H, C1 to C20 alkyl, where C1 to C20 alkyl comprises straight-chain or branched C1 to C20 alkyl groups or cyclic C3 to C20 alkyl groups, alkanoyl having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, cyanophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, dimethylphenyl, such as 3,4-dimethylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-ethoxyphenyl, 3-ethoxyphenyl, 4-ethoxyphenyl, 4-isopropylphenyl, benzyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, (carboxymethyl)phenyl, in which the carboxyl group may also be esterified with C1 to C6 alkyl, where C1 to C6 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C6 alkyl groups, (N,N-dimethylsulfonamido)phenyl, sulfonamidophenyl or 4-isopropoxyphenyl,
    R7 is H, C1 to C20 alkyl, where C1 to C20 alkyl comprises straight-chain or branched C1 to C20 alkyl groups or cyclic C3 to C20 alkyl groups, phenyl, carboxylic esters having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C8 alkyl groups, alkanoyl having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, cyanophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, dimethylphenyl, such as 3,4-dimethylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-ethoxyphenyl, 3-ethoxyphenyl, 4-ethoxyphenyl, 4-isopropylphenyl, benzyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, (carboxymethyl)phenyl, in which the carboxyl group may also be esterified with C1 to C6 alkyl, where C1 to C6 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C6 alkyl groups, (N,N-dimethylsulfonamido)phenyl, sulfonamidophenyl or 4-isopropoxyphenyl, and
    R8 is H, C1 to C20 alkyl, where C1 to C20 alkyl comprises straight-chain or branched C1 to C20 alkyl groups or cyclic C3 to C20 alkyl groups, phenyl, carboxylic esters having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, alkanoyl having C1 to C8 alkyl, where C1 to C8 alkyl comprises straight-chain or branched C1 to C8 alkyl groups or cyclic C3 to C8 alkyl groups, cyanophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, dimethylphenyl, such as 3,4-dimethylphenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2-ethoxyphenyl, 3-ethoxyphenyl, 4-ethoxyphenyl, 4-isopropylphenyl, benzyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, (carboxymethyl)phenyl, in which the carboxyl group may also be esterified with C1 to C6 alkyl, where C1 to C6 alkyl comprises straight-chain or branched C1 to C6 alkyl groups or cyclic C3 to C6 alkyl groups, (N,N-dimethylsulfonamido)phenyl, sulfonamidophenyl or 4-isopropoxyphenyl,
    and (meth)acrylic acid and/or C1 to C8 alkyl (meth)acrylates.

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