公开(公告)号：DE3540697A1

公开(公告)日：1987-05-21

申请号：DE3540697

申请日：1985-11-16

Applicant: BASF AG

Inventor： WERNER RAINER ALEXANDER DR ,  JAGGARD JAMES F R DR ,  GRUBER WOLFGANG DR

IPC: C08F2/02 ,  C08F4/58 ,  C08F4/64 ,  C08F10/06 ,  C08F297/08

Abstract: The invention relates to the preparation of polymers from propylene by means of a Ziegler-Natta catalyst system comprising (1) a titanium component which contains titanium, magnesium, chlorine and a benzenecarboxylic acid derivative, (2) an aluminium component and (3) a silane component, characterised in that (1) is obtained by (1.1) first reacting (1.1.1) titanium tetrachloride, (1.1.2) an MgCl2-alcohol complex and (1.1.3) a phthalic acid derivative with one another under certain conditions, (1.2) then extracting the solid intermediate obtained from (1.1) with titanium tetrachloride until the solid which remains has become significantly higher in magnesium content, and (1.3) finally washing the solid remaining in (1.2) with an alkane.

公开(公告)号：DE3425456A1

公开(公告)日：1986-01-23

申请号：DE3425456

申请日：1984-07-11

Applicant: BASF AG

Inventor： STAIGER GERHARD DR ,  JAGGARD JAMES F R DR ,  GRUBER WOLFGANG DR ,  WERNER RAINER ALEXANDER DR

IPC: C08F4/14 ,  C08F4/16 ,  C08F4/64 ,  C08F10/06 ,  C08F110/06 ,  C08F4/52

公开(公告)号：DE3411197A1

公开(公告)日：1985-10-10

申请号：DE3411197

申请日：1984-03-27

Applicant: BASF AG

Inventor： STAIGER GERHARD DR ,  WERNER RAINER ALEXANDER DR ,  GRUBER WOLFGANG DR

IPC: C08F4/10 ,  C08F4/12 ,  C08F4/14 ,  C08F4/16 ,  C08F10/00 ,  C08F4/52 ,  C08F10/06

Abstract: The invention relates to the preparation of a modified titanium component (1) for Ziegler-Natta catalyst systems, in which first (1.1) in a first step (1.1.1) titanium tetrachloride is allowed to react with (1.1.2) an alkyl benzenecarboxylate to give a liquid, then (1.2) in a second step (1.2.1) the liquid resulting from (1.1) is reacted with (1.2.2) a magnesium alkoxide to give a solid, and finally (1.3) in a third step (1.2.1) titanium tetrachloride is reacted with (1.3.2) the solid resulting from (1.2) and optionally additionally (1.3.3) further alkyl benzenecarboxylate to give the titanium component (1) (= solid), characterised in that, in the preparation of (1), the alkyl benzenecarboxylate used under (1.1.2) is a diester of phthalic acid with a certain primary, secondary or tertiary alkanol. The result is a modified titanium component which allows highly stereoregular and morphologically excellent polymers to be prepared.

公开(公告)号：DE3404669A1

公开(公告)日：1985-08-14

申请号：DE3404669

申请日：1984-02-10

Applicant: BASF AG

Inventor： STAIGER GERHARD DR ,  WERNER RAINER ALEXANDER DR ,  GRUBER WOLFGANG DR

IPC: C08F4/12 ,  C08F4/16 ,  C08F10/00 ,  C08F10/04 ,  C08F4/10 ,  C08F10/02 ,  C08F10/06 ,  C08F10/14

Abstract: The invention relates to the polymerisation of alpha -monoolefins by means of a catalyst system comprising (1) a titanium component, (2) an alkylaluminium compound and (3) a cocatalyst, characterised in that a novel, modified titanium component (1) is provided for this purpose; it is obtained by first (1.1) preparing a first intermediate from (1.1.1) titanium tetrachloride, (1.1.2) a modifier comprising (1.1.2.1) a titanic acid ester and (1.1.2.2) a phthaloyl dichloride, and (1.1.3) magnesium alcoholate, then (1.2) preparing a second intermediate from (1.2.1) titanium tetrachloride, (1.2.2) the intermediate from (1.1) and, if desired, (1.2.3) a phthaloyl dichloride as further modifier, and finally (1.3) preparing the titanium component (1) from (1.3.1) titanium tetrachloride and (1.3.2) the intermediate from (1.2).