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    • 2. 发明授权
    • Process for the preparation of organophosphorus derivatives of
2,4-di-tert-butylphenol, of 4,4'-dihalomagnesium compounds of biphenyl
and the use of the organophosphorus derivatives for the stabilization
of polyolefin molding
    • 制备2,4-二 - 叔丁基苯酚的4,4'-二氢马来酸化合物的联苯衍生物的有机衍生物的方法和用于稳定聚烯烃成型的有机磷衍生物的用途
    • US5109043A
    • 1992-04-28
    • US452751
    • 1989-12-19
    • Manfred BohsharHans-Jerg KleinerKarl WaldmannGerhard Pfahler
    • Manfred BohsharHans-Jerg KleinerKarl WaldmannGerhard Pfahler
    • C09K15/32C07F3/02C07F9/40C07F9/48C08K5/53C08K5/5393C08L23/00
    • C07F9/4875C07F3/02C07F9/4084C08K5/5393
    • A process for the preparation of organophosphorus derivatives of 2,4-di-tert-butylphenol with a high proportion of organophosphorus derivatives of biphenyl, which comprises reacting, in a first step, a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35, under Grignard conditions with magnesium to form the corresponding Grignard compound and this is further reacted in a second step with bis(2,4-di-tert-butylphenyl) chlorophosphite with the formation of a mixture in which at least 50% by weight of the phosphorus is combined in the form of tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylenediphosphonite. The invention further relates to a polyolefin molding composition containing tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylenediphosphonite which was prepared by reaction of a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 with magnesium to form the Grignard compound and by subsequent reaction with bis(2,4-di-tert-butylphenyl) chlorophosphite. The invention furthermore relates to a process for the preparation of 4,4'-dihalomagnesium compounds of biphenyl by reacting a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 in the absence of an entrainer, with fine-particle magnesium which is held in suspension.
    • 一种制备2,4-二叔丁基苯酚有机磷衍生物与高比例联苯有机磷衍生物的方法,其包括在第一步中使卤素原子量为4,4'-二卤联苯 至少35,在Grignard条件下用镁形成相应的格氏化合物,并且在第二步中进一步与双(2,4-二叔丁基苯基)氯亚磷酸酯反应形成混合物,其中至少50 按重量计的磷重量合并为四(2,4-二叔丁基苯基)4,4'-联苯二亚磷酸盐的形式。 本发明还涉及一种含有四(2,4-二叔丁基苯基)4,4'-联苯二亚磷酸盐的聚烯烃模塑组合物,其通过使卤素原子量至少为原子量的4,4'-二卤代联苯 35与镁形成格氏化合物,随后与双(2,4-二叔丁基苯基)氯亚磷酸酯反应。 本发明还涉及通过在不存在夹带剂的情况下使卤素原子量至少为35的4,4'-二卤联苯与细颗粒反应来制备联苯的4,4'-二卤代镁化合物的方法 保持悬浮的镁。