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    • 4. 发明申请
    • PROCESS FOR THE PRODUCTION OF POLYPROPYLENE USING HIGH YIELD ZIEGLER-NATTA CATALYSTS
    • 使用高YIELD ZIEGLER-NATTA催化剂生产聚丙烯的方法
    • WO2004111098A2
    • 2004-12-23
    • PCT/EP2004/006053
    • 2004-06-04
    • BOREALIS TECHNOLOGY OYVESTBERG, TorvaldJÄÄSKELÄINEN, Pirjo
    • VESTBERG, TorvaldJÄÄSKELÄINEN, Pirjo
    • C08F10/06
    • C08F10/06C08F110/06C08F210/06C08L23/10Y02P20/52C08F4/651C08F4/6546C08L2666/04C08F2500/12C08F2500/15C08F2500/26C08F210/16
    • This invention relates to a process for the production of a polymer film or fibre wherein a polymer composition comprising a propylene homo- or copolymer is formed into a film or fibre, and wherein said propylene homo­ or copolymer is produced in a process which comprises the polymerization of propylene monomers or propylene monomers and one or more types of comonomers in the presence of a high yield Ziegler-Natta olefin polymerization catalyst, which catalyst comprises a component in the form of particles having a predetermined size range which has been produced in a process comprising: a) preparing a solution of a complex of a Group 2 metal and an electron donor by reacting a compound of said material with said electron donor or a precursor thereof in an organic liquid reaction medium, b) reacting said complex in solution with a compound of a transition metal to procedure an emulsion the dispersed phase of which containing more than 50 mol% of the Group 2 metal in said complex, c) maintaining the particles of said dispersed phase within the average size range of 5 to 200 microns by agitation in the presence of an emulsion stabilizer and d) solidifying said particles, and recovering, optionally washing said particles to obtain said catalyst component. The invention further relates to polpropylene products obtainable by this process and to the use of polypropylene products in the production of films and fibres.
    • 本发明涉及一种生产聚合物膜或纤维的方法,其中将包含丙烯均聚物或共聚物的聚合物组合物形成膜或纤维,并且其中所述丙烯均聚物或共聚物以包括聚合的方法制备 的丙烯单体或丙烯单体和一种或多种类型的共聚单体,在高产率齐格勒 - 纳塔烯烃聚合催化剂存在下,该催化剂包含具有预定尺寸范围的颗粒形式的组分,该组分已经以包括 :a)通过使所述材料的化合物与所述电子给体或其前体在有机液体反应介质中反应来制备第2族金属和电子给体的络合物的溶液,b)使所述配合物与溶液中的化合物 的过渡金属来处理乳液,其分散相在所述络合物中含有多于50mol%的第2族金属,c)m 通过在乳液稳定剂存在下搅拌,将所述分散相的颗粒在5至200微米的平均尺寸范围内进行,并且d)固化所述颗粒,并回收任选地洗涤所述颗粒以获得所述催化剂组分。 本发明还涉及通过该方法可获得的聚丙烯产品以及聚丙烯产品在膜和纤维生产中的应用。