6-aryl-6H-dibenzo[c,e][1,2]oxaphosphorine stabilizers for plastics
    2.
    发明授权
    6-aryl-6H-dibenzo[c,e][1,2]oxaphosphorine stabilizers for plastics 失效
    6-芳基-6H-二苯并[c,e] [1,2]氧化磷稳定剂

    公开(公告)号:US5356967A

    公开(公告)日:1994-10-18

    申请号:US962187

    申请日:1992-12-23

    CPC分类号: C07F9/657163 C08K5/5377

    摘要: A dibenzo-[c,e] [1,2] oxaphosphorine of the formula I and process of making said compound ##STR1## wherein n=1 or 2 and in which R.sup.1 is a monovalent or divalent aromatic radical wherein a Grignard compound R.sup.1 (MgHal).sub.n is reacted with 6-chloro-6H-dibenzo[c,e][1,2] oxaphosphorine.This compound optionally with phenolic antioxidants, provides stabilization in polymers.

    摘要翻译: PCT No.PCT / EP91 / 01158 Sec。 371日期1992年12月23日 102(e)日期1992年12月23日PCT提交1991年6月22日PCT公布。 出版物WO92 / 00306 PCT 日本1 9 9 2年1月9日。具有式I的二苯并[c,e] [1,2]氧代磷酰胺和制备所述化合物的方法,其中n = 1或2,其中R 1是一价 或二价芳族基团,其中格利雅化合物R1(MgHal)n与6-氯-6H-二苯并[c,e] [1,2]氧代磷杂反应。 该化合物任选具有酚类抗氧化剂,提供聚合物中的稳定性。

    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
    3.
    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 失效
    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

    公开(公告)号:US5109043A

    公开(公告)日:1992-04-28

    申请号:US452751

    申请日:1989-12-19

    摘要: 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.

    摘要翻译: 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。

    "> Process for preparing the crystal modification of 2,2',2
    6.
    发明授权
    Process for preparing the crystal modification of 2,2',2"-nitrilo� triethyl tris(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl)phosphite! 失效
    制备2,2',2“ - 次氮基[三乙基三(3,3',5,5'-四叔丁基-1,1'-联苯-2,2'-二基 )亚磷酸酯]

    公开(公告)号:US5811567A

    公开(公告)日:1998-09-22

    申请号:US877001

    申请日:1997-06-16

    IPC分类号: C07F9/6574

    CPC分类号: C07F9/65746

    摘要: The present invention relates to a process for preparing the .alpha. crystal modification of 2,2',2"--nitrilo�triethyltris(3,3',5,5"--tetra--tert--butyl--1,1'--biphenyl--2,2'--diyl) phosphite! (abbreviated as NTTBP) of the formula ##STR1## which comprises dissolving the NTTBP in the form of its melt, its amorphous solid-phase modification or its .beta. crystal modification, hot, at 40 to 100.degree. C., in short-chain ketones having 3 to 7 carbon atoms, such as methyl ethyl ketone or, in particular, acetone, and then initiating crystallization by cooling to room temperature.

    摘要翻译: 本发明涉及一种制备2,2',2“ - 次氮基[三乙基三(3,3',5,5” - 四叔丁基-1,1'-联苯) 1-2,2'-二基)亚磷酸酯](缩写为NTTBP),其包括将其熔体形式的NTTBP,其无定形固相改性或其β晶体改性溶解在40℃ 在具有3至7个碳原子的短链酮中,例如甲基乙基酮或特别是丙酮,然后通过冷却至室温引发结晶。