公开(公告)号：US20140275414A1

公开(公告)日：2014-09-18

申请号：US14293296

申请日：2014-06-02

Applicant: ADEKA CORPORATION

Inventor： Naoshi KAWAMOTO ,  Takashi AYABE ,  Tsuyoshi URUSHIHARA ,  Kohei OKAMOTO ,  Tetsuya SEGUCHI

IPC: C08K5/20

CPC classification number: C08K5/20 ,  C08F6/28 ,  C08F10/00 ,  C08F2410/01 ,  D01F6/06 ,  C08L23/10 ,  C08L23/00 ,  C08F2/44 ,  C08F4/6495

Abstract: Provided are a recycling method for industrially, simply and effectively recycling a phenolic body from a phenolic antioxidant which is masked by an organoaluminum compound and contained in an olefin polymer obtained by supplying the masked phenolic antioxidant upon polymerization; and an olefin polymer obtained by this method.In a method for recycling a phenolic antioxidant wherein a phenolic antioxidant which is masked by an organoaluminum compound and contained in an olefin polymer obtained by supplying the masked phenolic antioxidant upon polymerization is recycled to a phenolic body, a nitrogen gas comprising water and/or a proton donor at a volume ratio of 1.0×10−6 to 2.5×10−2 with respect to 1 volume of nitrogen is brought into contact with the olefin polymer.

Abstract translation: 提供了一种工业上简单有效地将苯酚体系从酚类抗氧化剂中回收的再循环方法，该酚类抗氧化剂被有机铝化合物掩蔽并包含在通过在聚合时供给掩蔽的酚类抗氧化剂而获得的烯烃聚合物中; 和通过该方法得到的烯烃聚合物。 在一种酚类抗氧化剂的再循环方法中，其中由有机铝化合物掩蔽并且包含在通过在聚合时供应掩蔽的酚类抗氧化剂而获得的烯烃聚合物中的酚类抗氧化剂被循环到酚醛体中，包含水和/或 使质子供体相对于1体积氮体积比为1.0×10-6〜2.5×10-2与烯烃聚合物接触。