Process for the preparation of a solid metallocene catalyst system and its use in polymerisation of olefins

    公开(公告)号:US08822365B2

    公开(公告)日:2014-09-02

    申请号:US13643898

    申请日:2011-04-28

    Abstract: Process for the preparation of a solid olefin polymerization catalyst system, comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) in the form of solid particles comprising the steps of I) generating an emulsion by dispersing a liquid clathrate in a solvent (S) wherein (i) the solvent (S) constitutes the continuous phase of the emulsion and comprises a nonreactive fluorinated synthetic oil having a viscosity at 20° C. according to ASTM D445 of at least 10 cSt up to 2000 cSt (ii) the liquid clathrate constitutes in form of droplets the dispersed phase of the emulsion, II) solidifying said dispersed phase to convert said droplets to solid particles and III) optionally recovering said particles to obtain said catalyst system, wherein the liquid clathrate comprises (a) a lattice being the reaction product of a1) a transition metal compound of formula (I) LmRnTXq wherein “T” is a transition metal of anyone of the groups 3 to 10 of the periodic table (IUPAC2007), preferably a transition metal of anyone of the groups 4 to 6 of the periodic table (IUPAC2007), more preferably titanium (Ti), zirconium (Zr) or hafnium (Hf), i.e. zirconium (Zr) or hafnium (Hf), each “X” is independently a monovalent s-ligand, each “L” is independently an organic ligand which coordinates to the transition metal (T), “R” is a bridging group linking said organic ligands (L), “m” is 2 or 3, preferably 2, “n” is 0, 1 or 2, preferably 1, “q” is 1, 2 or 3, preferably 2, m+q is equal to the valency of the transition metal (T), a2) a cocatalyst comprising aluminoxane a3) a compound being effective to form the lattice with the transition metal compound and/or the aluminoxane and b) a hydrocarbon solvent (HS).

    Catalyst composition for hydrogenation and their use for hydrogenation conjugated diene polymer
    5.
    发明申请
    Catalyst composition for hydrogenation and their use for hydrogenation conjugated diene polymer 审中-公开
    用于氢化的催化剂组合物及其用于氢化共轭二烯聚合物的用途

    公开(公告)号:US20100137525A1

    公开(公告)日:2010-06-03

    申请号:US12656478

    申请日:2010-02-01

    Abstract: The present invention provides a process for hydrogenation of a conjugated diene polymer comprising hydrogenating said polymer in the presence of hydrogen and a hydrogenation catalyst composition, wherein the catalyst composition comprising a titanium compound (A), a silyl hydride (B) selected from the group having a Si—H group and consisting of a monomeric silyl hydride, a polymeric silyl hydride, and a cyclic silyl hydride; and a compound (C), and conducting the hydrogenation in a middle to larger sized reactor having a capacity of 25 liters, with a temperature of 50° C. to 150° C., and a hydrogen pressure of 1 kg/cm2 to 20 kg/cm2.

    Abstract translation: 本发明提供一种共轭二烯聚合物的氢化方法,包括在氢气和氢化催化剂组合物的存在下氢化所述聚合物,其中催化剂组合物包含钛化合物(A),甲硅烷基氢化物(B) 具有Si-H基团并由单体甲硅烷基氢化物,聚合甲硅烷基氢化物和环状甲硅烷基氢化物组成; 和化合物(C),并且在50〜150℃的温度和1kg / cm 2〜20℃的氢气压力下,在容量为25升的中等尺寸的较大尺寸的反应器中进行氢化 kg / cm2。

    Catalyst composition for hydrogenation and their use for hydrogenation conjugated diene polymer
    6.
    发明申请
    Catalyst composition for hydrogenation and their use for hydrogenation conjugated diene polymer 审中-公开
    用于氢化的催化剂组合物及其用于氢化共轭二烯聚合物的用途

    公开(公告)号:US20080171653A1

    公开(公告)日:2008-07-17

    申请号:US11987224

    申请日:2007-11-28

    Abstract: The present invention provides a catalyst composition for hydrogenation comprising: (1) a titanium compound (A) represented by the following formula (a): (2) a silyl hydride (B); and (3) a compound (C) represented by the following formula (e): The catalyst composition for hydrogenation can maintain activity longer and improve hydrogenation conversion of the conjugated diene polymers, particularly of the trans structure. The conjugated diene polymers produced according to the present invention can further perform good thermal stability and odorless.

    Abstract translation: 本发明提供一种用于氢化的催化剂组合物,其包括:(1)由下式(a)表示的钛化合物(A):(2)甲硅烷基氢化物(B); 和(3)由下式(e)表示的化合物(C):用于氢化的催化剂组合物可以保持活性更长并且改善共轭二烯聚合物,特别是反式结构的氢化转化率。 根据本发明生产的共轭二烯聚合物可进一步发挥良好的热稳定性和无臭味性。

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