Method for making a catalyst composition
    1.
    发明公开
    Method for making a catalyst composition 审中-公开
    制备催化剂组合物的方法

    公开(公告)号:EP1008551A3

    公开(公告)日:2000-08-16

    申请号:EP99309659.3

    申请日:1999-12-01

    IPC分类号: C01B21/098 C08G77/08

    摘要: A method for making a phosphonitrile halide of the formula (X(PX 2 =N) a PX 3 )) + A - wherein X represents a halogen, A represents X or (PX 6 ) - , and a is an integer of from 1 to 9, comprises a first step of reacting PX 5 and a disilazane under cooling in an inert non-chlorinated solvent and a second step of heating the reaction mixture to at least 50°C for a time sufficient to produce the phosphonitrile halide. The method may also include a third step of adding a cyclosiloxane of the formula ((CH 3 ) 2 SiO) b , wherein b is an integer of from 3 to 6, to the reaction mixture resulting from the second step to form a phosphonitrile halide containing species of the formula Z-((CH 3 ) 2 SiO) b -Z wherein Z is X or a group OPX 2 (NPX 2 ) a NPX 2 -, the phosphonitrile halide containing species having at least one group of the formula OPX 2 (NPX 2 ) a NPX 2 -. Also disclosed is the use of the phosphonitrile halide made by the method of the present invention as a catalyst for the polymerisation of organopolysiloxanes.

    摘要翻译: 一种制备式(X(PX2 = N)aPX3))+ A-的磷腈卤化物的方法,其中X代表卤素,A代表X或(PX6) - ,a是1至9的整数,包括 在冷却下在惰性非氯化溶剂中使PX5和二硅氮烷反应的第一步骤和将反应混合物加热至至少50℃足以产生磷腈卤化物的时间的第二步骤。 所述方法还可以包括将式((CH 3)2 SiO)b的环硅氧烷(其中b为3至6的整数)加入到由第二步得到的反应混合物中以形成含磷腈卤化物的物质 其中Z是X或OPX2(NPX2)aNPX2-的式Z - ((CH3)2SiO)bZ,所述含膦腈卤化物的物质具有至少一个式OPX2(NPX2)aNPX2-的基团。 还公开了通过本发明的方法制备的磷腈卤化物作为有机聚硅氧烷聚合的催化剂的用途。

    Continuous process for purifying crude linear polydichlorophosphazene polymer
    6.
    发明公开
    Continuous process for purifying crude linear polydichlorophosphazene polymer 失效
    Kontinueierliches Verfahren zur Reinigung von rohem linearem Polydichlorphosphazen-Polymer。

    公开(公告)号:EP0198953A2

    公开(公告)日:1986-10-29

    申请号:EP85114722.3

    申请日:1985-11-19

    CPC分类号: C01B21/0986

    摘要: The oligomer content in crude polydichlorophosphazene polymer is reduced to less than about 7% by a continuous process wherein the crude polymer in solution is introduced into an extruder along with solvent selective for the oligomer whereby polymer coagulates and liquid phase rich in oligomer is formed and is prevented from exit at the polymer discharge end of the extruder by the concentration and coagulation of the polymer and is separated from the concentrated polymer upstream of the polymer discharge end by mechanical filtering.

    摘要翻译: 通过连续方法将粗聚二氯磷腈聚合物中的低聚物含量降低至小于约7%,其中将溶液中的粗聚合物与低聚物的溶剂选择性引入挤出机,由此聚合物​​凝结并形成富含液相的低聚物,并且是 通过聚合物的浓缩和凝结防止在挤出机的聚合物排出端离开,并通过机械过滤与聚合物排出端上游的浓缩聚合物分离。

    Phosphonitrilic chloride polymers
    7.
    发明公开
    Phosphonitrilic chloride polymers 失效
    Phosphonitrilchlorid-POLYMERE。

    公开(公告)号:EP0078053A2

    公开(公告)日:1983-05-04

    申请号:EP82109897.7

    申请日:1982-10-26

    申请人: ETHYL CORPORATION

    发明人: Hsueh, Ming Li

    IPC分类号: C08G79/02

    CPC分类号: C01B21/0986

    摘要: Linear phosphonitrilic chloride polymers are produced from linear phosphonitrilic chloride oligomers by means of a two-step process. In the first step a mixture of linear phosphonitrilic chloride oligomer having an average degree of polymerization of at least 4 is heated with an excess of ammonia or ammonium chloride. Cyclic phosphonitrilic chloride oligomer formed during the course of the first step is removed from the reaction mixture. After the removal of the cyclic oligomer the reaction mixture is subjected to the second step which involves heating the mixture in an inert liquid solvent (optionally in the presence of ammonia or amonium chloride) whereby the molecular weight of the linear phosphonitrilic chloride polymer is increased.

    Procédé de régulation des masses moléculaires de polydichlorophosphazènes
    10.
    发明公开
    Procédé de régulation des masses moléculaires de polydichlorophosphazènes 失效
    Verfahren zur Regulierung der Molekulargewichte von Polydichlorophosphazenen。

    公开(公告)号:EP0424235A1

    公开(公告)日:1991-04-24

    申请号:EP90402882.6

    申请日:1990-10-16

    申请人: ELF ATOCHEM S.A.

    IPC分类号: C01B21/098 C08G79/02

    CPC分类号: C08G79/025 C01B21/0986

    摘要: L'invention a pour objet un procédé de régulation des masses moléculaires des polydichlorophosphazènes.
    Ce procédé, qui permet de réduire la masse moléculaire à une valeur déterminée, consiste à chauffer le polydichloro­phosphazène en présence d'oxychlorure de phosphore.
    Les polydichlorophosphazènes peuvent conduire, après substitution, à une large gamme de polyorganophosphazènes.

    摘要翻译: 控制聚二氯磷腈分子量的方法。 ...这种使分子量降低到特定值的方法在于在磷酰氯的存在下加热聚二氯磷腈。 取代后,聚二氯二磷腈可以产生宽范围的聚有机磷腈。