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    METHOD FOR PRODUCING STABILIZED POLYMER
    3.
    发明公开
    METHOD FOR PRODUCING STABILIZED POLYMER 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINES STABILISIERTEN POLYMERS

    公开(公告)号：EP3061788A4

    公开(公告)日：2017-06-21

    申请号：EP14855289

    申请日：2014-10-20

    申请人： ADEKA CORP

    发明人： KAWAMOTO NAOSHI ,  SAKAI ATSUSHI ,  SEGUCHI TETSUYA ,  YAMAZAKI KENJI

    IPC分类号： C08L23/02 ,  C08F2/44 ,  C08K5/524

    CPC分类号： C08K5/524 ,  C08F2/44 ,  C08K5/005 ,  C08K5/134 ,  C08F110/06 ,  C08F4/6492 ,  C08F4/6543 ,  C08L23/02

    摘要： Provided is a method of producing a stabilized polymer by which, while imparting sufficient stabilizing effect to the polymer of a monomer having an ethylenically unsaturated bond, the amount of residual solvent in the polymer can be reduced and the occurrence of foaming can be inhibited. The method of producing a stabilized polymer comprises the step of adding an antioxidant having a melting point of 70°C or lower to a catalyst system or a polymerization system before or during polymerization of a monomer having an ethylenically unsaturated bond such that 0.005 to 0.5 parts by mass of the antioxidant is incorporated with respect to 100 parts by mass of a polymer obtained by the polymerization of the monomer having an ethylenically unsaturated bond.

    摘要翻译： 本发明提供一种稳定化聚合物的制造方法，通过该制造方法，在对具有烯属不饱和键的单体的聚合物赋予充分的稳定化效果的同时，可以降低聚合物中的残留溶剂量，可以抑制发泡的发生。 生产稳定化聚合物的方法包括在具有烯键式不饱和键的单体聚合之前或期间向催化剂体系或聚合体系中加入熔点为70℃或更低的抗氧化剂的步骤，使得0.005至0.5份 相对于通过具有烯属不饱和键的单体的聚合而得到的聚合物100质量份，含有抗氧化剂。

    METHOD OF PRODUCING OLEFIN RESIN COMPOSITION
    8.
    发明公开
    METHOD OF PRODUCING OLEFIN RESIN COMPOSITION 有权
    制造方法的烯烃树脂

    公开(公告)号：EP2796495A4

    公开(公告)日：2015-07-29

    申请号：EP12859865

    申请日：2012-12-07

    申请人： ADEKA CORP

    发明人： KAWAMOTO NAOSHI ,  URUSHIHARA TSUYOSHI ,  SEGUCHI TETSUYA ,  OKAMOTO KOHEI

    IPC分类号： C08L23/02 ,  C08J7/00 ,  C08K5/49 ,  C08K5/56

    CPC分类号： C08K5/56 ,  C08K5/13 ,  C08K5/49 ,  C08K5/52 ,  C08L23/02

    摘要： The present invention provides a method of producing an olefin resin composition by which an olefin resin composition in which reduction in the physical properties and occurrence of yellowing after a sterilization treatment by irradiation with radiation are suppressed can be produced. The method of producing an olefin resin composition according to the present invention is a method of producing an olefin resin composition for a molded article to be used after a sterilization treatment by irradiation with radiation, the method comprising: blending, before or during polymerization of an olefin monomer, a phenolic antioxidant, which is represented by the following Formula (1) and masked with an organoaluminum compound, in an amount of 0.001 to 0.5 parts by mass with respect to 100 parts by mass of an olefin resin obtained by the polymerization; and blending, at any one point of before, during or after the polymerization of the olefin monomer, a phosphorus-based antioxidant in an amount of 0.001 to 3 parts by mass with respect to 100 parts by mass of the olefin resin obtained by the polymerization: (wherein, R represents, for example, an alkyl group having 12 to 24 carbon atoms which is optionally branched and/or substituted).