公开(公告)号：USD405472S

公开(公告)日：1999-02-09

申请号：US74339

申请日：1997-07-22

Applicant: Il Kim

Designer： Il Kim

公开(公告)号：USD386802S

公开(公告)日：1997-11-25

申请号：US58260

申请日：1996-08-09

Applicant: Il Kim

Designer： Il Kim

公开(公告)号：US5192729A

公开(公告)日：1993-03-09

申请号：US773512

申请日：1991-10-09

Applicant: Seong I. Woo ,  Il Kim

Inventor： Seong I. Woo ,  Il Kim

IPC: C08F4/649 ,  C08F10/02

CPC classification number: C08F10/02

Abstract: A highly active Ziegler-Natta catalyst for polymerizing HDPE and LLDPE at low temperature and pressure may be prepared by reacting a magnesium compound and a halogen compound with an electron donor compound to dissolve, reacting the resulting solution with a titanium compound to obtain the homogeneous solution and then adding a small quantity of surfactant to the homogeneous solution. Ethylene polymers and copolymers were prepared by activating the resulting catalyst to obtain the granular polymer having density of from 0.92 to 0.98 g/cm.sup.3 and in which the particle size distribution was narrow.

Abstract translation: 用于在低温和高压下聚合HDPE和LLDPE的高活性齐格勒 - 纳塔催化剂可以通过使镁化合物和卤素化合物与电子给体化合物反应来溶解，使所得溶液与钛化合物反应，得到均匀溶液 然后向均匀溶液中加入少量表面活性剂。 通过活化得到的催化剂制备乙烯聚合物和共聚物，得到密度为0.92至0.98g / cm 3的粒状聚合物，其中粒度分布窄。