公开(公告)号：AT113297T

公开(公告)日：1994-11-15

申请号：AT91103643

申请日：1991-03-09

Applicant: BASF AG

Inventor： BUESCHGES ULRICH DR ,  SAIVE ROLAND DR ,  FOLLMER GODOGREDO DR

IPC: C08F4/629 ,  C08F4/685 ,  C08F10/00 ,  C08F10/02

Abstract: A transition-metal catalyst component for a Ziegler catalyst system, obtainable by 1) mixing, in a solvent, an inorganic, oxidic carrier with 1.1) a vanadium trihalide alcohol complex of the formula VY3.nZ-OH, where Y is chlorine or bromine, n is from 1 to 6, and Z is a monovalent, saturated, aliphatic, aromatic or araliphatic hydrocarbon radical having not more than 10 carbon atoms, and 1.2) a titanium halide or a titanium trihalide/aluminum trihalide complex, where the halogen can be chlorine and/or bromine, or a titanium trihalide complex of the formula TiY3.nZ-OH or mixtures thereof, where Y is chlorine or bromine, n is from 1 to 6, and Z is a monovalent, saturated, aliphatic, aromatic or araliphatic hydrocarbon radical having not more than 10 carbon atoms, and 1.3) a compound of the formula BXnYmRp or SiXnYmRq or mixtures thereof, where X is OR, Y is chlorine, bromine or hydrogen, and R is a C1- to C18-hydrocarbon radical, with the proviso that n>0 and n+m+p=3 or n+m+q=4, 2) removing the solvent by evaporation, 3) mixing the solid-phase intermediate from step 2) with 3.1) an organoaluminum catalyst component of the formula AlRmX3-m, where R is a C1- to C18-hydrocarbon radical, m is from 1 to 3, and X is OR, chlorine, bromine or hydrogen, and 3.2) an organic carboxylate or an organosilicon compound or a mixture thereof in an organic solvent, and 4) if desired, isolating the solid-phase intermediate by filtration, washing and drying, and the use thereof for the homopolymerization or copolymerization of ethene are described.

公开(公告)号：DE4204260A1

公开(公告)日：1993-08-19

申请号：DE4204260

申请日：1992-02-13

Applicant: BASF AG

Inventor： MUELLER HANS-JOACHIM DR ,  EVERTZ KASPAR DR ,  WEBER SIEGFRIED DR ,  FUNK GUIDO DR ,  KONRAD RAINER DR ,  SAIVE ROLAND DR

IPC: C08F2/42 ,  C08F4/00 ,  C08F4/02 ,  C08F4/06 ,  C08F4/22 ,  C08F4/24 ,  C08F10/00 ,  C08F10/02

公开(公告)号：DE3838491A1

公开(公告)日：1990-05-17

申请号：DE3838491

申请日：1988-11-12

Applicant: BASF AG

Inventor： SAIVE ROLAND DR ,  FUNK GUIDO DR ,  SCHMIDT-THUEMMES JUERGEN DR ,  KONRAD RAINER DR ,  BAUER PETER

IPC: C08F6/00 ,  C08F2/00 ,  C08F2/14 ,  C08F2/34 ,  C08F4/68 ,  C08F6/06 ,  C08F8/00 ,  C08F8/14 ,  C08F10/02 ,  C08F210/16

Abstract: The invention relates to a process for the preparation of low-pressure ethylene polymers by polymerising the monomers in the presence of a Ziegler catalyst system, in which process the solid ethylene polymer obtained is reacted in the melt with additives which are able to form acids by esterification. The ester-forming additives are preferably epoxide compounds.