SOLID CATALYST FOR OLEFIN POLYMERIZATION AND PROCESS FOR PRODUCING OLEFINIC POLYMERS BY USING THE SAME

摘要

Solid catalysts [F] for the polymerization of olefins, which are prepared by reacting at least one compound selected from among compounds of the general formula: R1aHbSiO(4-a-b)/2 (wherein R1 is a monovalent organic group; a is 0 to 2; and b is 1 to 3, provided they satisfy the relationship: a + b 3), compounds of the general formula: R2cSi(OH)4-c (wherein R2 is a monovalent C1- C18 hydrocarbon group; and c is 1 to 3) and condensates thereof with a compound of the general formula: (MgR32)p.R3MgX)q (wherein R3 is a hydrocarbon group; X is halogeno; and p and q are each 0 to 1, provided they satisfy the relationship: p + q = 1) to obtain a product [A], reacting the product [A] with a C1-C4 alcohol to prepare a product [B], reacting the product [B] with water to give a solid product [C], and depositing an organoaluminumoxy compound [D] and a metallocene compound [E] on the product [C]; and a process for the production of olefin polymers with the same. The use of the catalysts can dispense with the removal of ash from polymers, give polymers which have enhanced bulk densities and narrow particle size distribution and are reduced in the content of too big particles and powder, facilitate the control of particle sizes of polymers, and reduce the autoclave deposit formed during polymerization.