PROCESS FOR PREPARING A CATALYST
    16.
    发明专利

    公开(公告)号:HU171453B

    公开(公告)日:1978-01-28

    申请号:HUHO001802

    申请日:1975-05-20

    Applicant: HOECHST AG

    Abstract: A catalyst of high activity and stereospecificity in alpha -olefin polymerization is obtained when titanium trichloride, prepared from titanium tetrachloride by reduction with an aluminum alkyl halide, is thermally treated, first with an ether in the presence of a cyclopolyene and the solid reaction product is then treated with an aluminum alkyl halide in the presence of a small amount of a cyclopolyene and/or an olefin. With the catalyst obtained high space-time yields of alpha -olefin polymers and copolymers can be produced.

Patent Agency Ranking