公开(公告)号：US06403519B1

公开(公告)日：2002-06-11

申请号：US09469187

申请日：1999-12-21

申请人： Philippe Francois ,  Serge Bettonville ,  Dominique Marchand

发明人： Philippe Francois ,  Serge Bettonville ,  Dominique Marchand

IPC分类号： B01J3100

CPC分类号： B01J31/165 ,  B01J19/18 ,  B01J31/143 ,  B01J31/2295 ,  B01J2219/00168 ,  B01J2219/00184 ,  B01J2531/48 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/24

摘要： Process for the preparation of a catalyst for the polymerization of alpha-olefins involves contacting a porous polyolefin support with a solution containing an activator (ii) to form a suspension. The suspension is evaporated in a reactor fitted with a stirrer comprising a scraping element. The scraping element follows the walls of the reactor at a distance from 2 to 200 times the mean particle diameter of the support. The catalyst includes a compound of a transition metal (i) from Groups 4 to 6 of the Periodic Table and at least one optionally substituted cyclopentadiene ligand and an aluminoxane activator (ii). The aluminoxane activator (ii) and transition metal compound are supported on the porous polyethylene support (iii). The walls of the reactor show no traces of crusting.

摘要翻译： 用于制备用于α-烯烃聚合的催化剂的方法包括使多孔聚烯烃载体与含有活化剂（ii）的溶液接触以形成悬浮液。 将悬浮液在装有搅拌器的反应器中蒸发，该搅拌器包括刮削元件。 刮擦元件在反应器的壁上与载体的平均粒径的2至200倍的距离。 催化剂包括周期表第4至6族的过渡金属（i）和至少一种任选取代的环戊二烯配体和铝氧烷激活剂（ii）的化合物。 铝氧烷活化剂（ii）和过渡金属化合物负载在多孔聚乙烯支撑体（iii）上。 反应堆的墙壁没有发现结皮痕迹。

公开(公告)号：US06383969B1

公开(公告)日：2002-05-07

申请号：US09469188

申请日：1999-12-21

申请人： Philippe Francois ,  Serge Bettonville ,  Dominique Marchand

发明人： Philippe Francois ,  Serge Bettonville ,  Dominique Marchand

IPC分类号： B01J3100

CPC分类号： B01J31/165 ,  B01J8/10 ,  B01J19/18 ,  B01J31/06 ,  B01J31/143 ,  B01J31/2295 ,  B01J37/00 ,  B01J2208/00867 ,  B01J2219/00184 ,  B01J2531/48 ,  C08F4/65912 ,  C08F4/65927 ,  C08F10/06 ,  C08F110/06 ,  Y10S526/903 ,  Y10S526/91 ,  Y10S526/911 ,  C08F4/65916 ,  C08F4/027

摘要： Disclosed is for the preparation of a catalytic composition for the polymerization of alpha-olefins. The catalyst comprises a compound of a transition metal (i) of Groups 4 to 6 of the Periodic Table, containing at least one possibly substituted cyclopentadiene ligand, and an activator (ii) chosen from aluminoxanes and ionizing agents supported on a support (iii) consisting of porous particles of polyolefin(s). Preparation includes a preliminary polymerization which includes contact with an alpha-olefin, under polymerizing conditions, in a diluent whose kinematic viscosity, measured at 20° C., is from 3 to 3000 cSt (centistokes) from 3 to 3000 mm2/s, such as mineral oil which may be derived from coal tars and petroleum fractions, to form from 0.01 to 50 g of polyolefin per g of catalyst containing compounds (i), (ii) and (iii).

摘要翻译： 公开了用于制备用于α-烯烃聚合的催化组合物。 催化剂包含周期表第4至6族过渡金属（i）的化合物，其含有至少一个可能取代的环戊二烯配体，和选自铝氧烷和负载在载体（iii）上的离子化剂）的活化剂（ii） 由聚烯烃的多孔颗粒组成。 制备包括预聚合，其包括在聚合条件下与α-烯烃在稀释剂中接触，其运动粘度在20℃下测得为3至3000cSt（厘沲）为3至3000mm 2 / s，如 作为可以从煤焦油和石油馏分得到的矿物油，每克含有化合物（i），（ii）和（iii）的催化剂形成0.01至50克聚烯烃。