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    • 55. 发明授权
    • Process for the preparation of an unsupported, solid metallocene catalyst system and its use in polymerization of olefins
    • 制备无载体固体茂金属催化剂体系的方法及其在烯烃聚合中的应用
    • US08791042B2
    • 2014-07-29
    • US13513450
    • 2010-12-03
    • Nicolas RonanPeter Denifl
    • Nicolas RonanPeter Denifl
    • C08F4/649C08F4/642C08F4/6592
    • C08F10/00C08F4/65927C08F12/20C08F12/22C08F110/06C08F293/005C08F2410/01C08F2438/01C08F4/65912C08F2500/12
    • Process for the preparation of an unsupported, heterogeneous 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 a) preparing a solution (A) comprising ai) an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) or of an actinide or lanthanide, a2) a cocatalyst comprising an element of group 13 of the Periodic Table (IUPAC 2007) and a3) a solvent (A-1), b) preparing a liquid/liquid emulsion system by dispersing the solution (A) in a solvent (B) essentially immiscible with said solution (A) in the presence of a polystyrene-b-fluoro polystyrene copolymer of the formula (I) in which n is a number from 10 to 100, m is a number from 1 to 40, x is a number from 5 to 16, y is a number from 11 to 33, provided that m, n, x and y are selected in a way that the block copolymer is soluble in the solvent B or the solution A in such an extent that a stable emulsion is formed by adding the block copolymer, b1) the solvent (B) constitutes the continuous phase of the emulsion, b2) the solution (A) constitutes in the form of droplets the dispersed phase and b3) the organometallic compound and the cocatalyst are present in the droplets, c) solidifying said dispersed phase to convert said droplets to solid particles and optionally recovering said particles to obtain said catalyst system; an unsupported, heterogeneous olefin polymerization catalyst, obtainable by the process and the use of the catalyst in olefin polymerization.
    • 制备无支撑的非均相烯烃聚合催化剂体系的方法,其包含固体颗粒形式的元素周期表第3至10族的过渡金属的有机金属化合物(IUPAC 2007),包括以下步骤:a)制备溶液 (A)包含ai)周期表第3至10族过渡金属的有机金属化合物(IUPAC 2007)或锕系元素或镧系元素,a2)包含元素周期表第13族元素的助催化剂(IUPAC 2007 )和a3)溶剂(A-1),b)通过将溶液(A)分散在基本上与所述溶液(A)不混溶的溶剂(B)中,在聚苯乙烯-b的存在下制备液体/液体乳液体系 式(I)的氟代聚苯乙烯共聚物,其中n为10至100的数,m为1至40的数,x为5至16的数,y为11至33的数,条件是 m,n,x和y以嵌段共聚物可溶于溶剂中的方式选择 t B或溶液A,通过加入嵌段共聚物形成稳定的乳液,b1)溶剂(B)构成乳液的连续相,b2)溶液(A)以液滴的形式构成 分散相和b3)有机金属化合物和助催化剂存在于液滴中,c)固化所述分散相以将所述液滴转化为固体颗粒,并任选地回收所述颗粒以获得所述催化剂体系; 一种无支撑的非均相烯烃聚合催化剂,可通过烯烃聚合中的方法和使用催化剂获得。