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    • 10. 发明授权
    • Polymeric stabilizer compounds and process for their preparation
    • 聚合物稳定剂化合物及其制备方法
    • US4853440A
    • 1989-08-01
    • US57092
    • 1987-06-02
    • Arnaldo RoggeroGuglielmo Bertolini
    • Arnaldo RoggeroGuglielmo Bertolini
    • C08C19/02C08C19/22C08C19/44C08F8/04C08F8/32C08L9/00C08L23/10C08L23/12C08L101/00
    • C08C19/44C08C19/02C08L23/10C08L9/00
    • Polymeric stabilizer compounds are formed by an organic polymeric matrix, of paraffinic character, deriving from a hydrogenated polydiene and bearing bonded at at least one chain end a sterically hindered aminic function.Such polymeric stabilizer compounds are obtained by means of a process, which provides:(a) the polymerization of a diene, by the technique of the living polymers, under the influence of alkyl metal-alkyl or alkyl metal-aryl catalysts, to yield a polydiene bearing on its chain end a terminal metal atom;(b) the reaction of said metal-bearing polydiene with a sterically hindered aminic compound, bearing in its molecule an electrophilic group, in particular a carbonyl group, reactive towards said metal of the metal-bearing polydiene;(c) the catalytic hydrogenation of the polydiene bearing said sterically hindered aminic function at its chain end.The so-obtained compounds are particularly useful in the stabilization of polypropylene towards the U.V. light degrading action.
    • 聚合稳定剂化合物由具有链烷属性的有机聚合物基质形成,衍生自氢化聚二烯并且在至少一个链端承载空间位阻胺官能团。 这种聚合稳定剂化合物是通过一种方法获得的,该方法提供:(a)在烷基金属 - 烷基或烷基金属 - 芳基催化剂的影响下,通过活性聚合物的技术聚合二烯,得到 在其末端具有末端金属原子的聚二烯; (b)所述含金属聚二烯与空间位阻胺化合物在其分子中具有对所述含金属聚二烯的所述金属具有反应性的亲电基团,特别是羰基的反应; (c)在其末端具有所述空间位阻胺官能团的聚二烯的催化氢化。 如此获得的化合物特别可用于将聚丙烯稳定化为U.V. 轻微的退化行为。