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    • 35. 发明申请
    • STABILIZER FOR POLYOLEFIN RESIN AND STABILIZED POLYOLEFIN RESIN COMPOSITION
    • 聚烯烃树脂稳定剂和稳定的聚烯烃树脂组合物
    • US20100056675A1
    • 2010-03-04
    • US12515972
    • 2007-11-22
    • Masaaki KiuraTakahiro Mukuda
    • Masaaki KiuraTakahiro Mukuda
    • C08K5/3435C08F26/06
    • C08F26/06C08F220/34C08L23/02C08L39/04C08L2201/08C08L2666/04
    • Disclosed is a stabilizer capable of giving a high degree of thermal stability to a polypropylene resin (PP resin). Also disclosed is a PP resin composition to which the stabilizer is added having a high degree of stability. Specifically disclosed is a stabilizer containing a copolymer (A) which is obtained by polymerizing an unsaturated monomer mixture composed of 1 to 50 parts by mass of an ethylenically unsaturated monomer (a) represented by the following general formula (I) and having a piperidyl group in a molecule, 50 to 99 parts by mass of at least one monomer (b) selected from isobutyl methacrylate, an alkyl (meth)acrylate having an alkyl group with 6 to 13 carbon atoms, and an aromatic vinyl monomer, and 0 to 20 parts by mass of an ethylenically unsaturated monomer (c) other than the monomers (a) and (b), with the proviso that the total of the monomers (a), (b), and (c) is 100 parts by mass: wherein R1 represents a hydrogen atom or an alkyl group having 1 to 2 carbon atoms, X represents an oxygen atom or an imino group, Y represents a hydrogen atom or an alkyl or alkoxyl group each having 1 to 20 carbon atoms, and Z represents a hydrogen atom or a cyano group.
    • 公开了能够赋予聚丙烯树脂(PP树脂)高的热稳定性的稳定剂。 还公开了具有高稳定性的加入稳定剂的PP树脂组合物。 具体公开的是含有共聚物(A)的稳定剂,该共聚物(A)通过使由以下通式(I)表示的烯键式不饱和单体(a)1〜50质量份和具有哌啶基的不饱和单体混合物 在选自甲基丙烯酸异丁酯,具有6〜13个碳原子的烷基的(甲基)丙烯酸烷基酯)和芳香族乙烯基单体中的至少一种单体(b)为50〜99质量份的情况下, 单体(a)和(b)以外的烯属不饱和单体(c)质量份,条件是单体(a),(b)和(c)的总量为100质量份: 其中R1表示氢原子或具有1至2个碳原子的烷基,X表示氧原子或亚氨基,Y表示氢原子或各自具有1至20个碳原子的烷基或烷氧基,Z表示 氢原子或氰基。