中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

43 records (took 0.021 seconds)

    39.
    发明专利
    未知

    公开(公告)号：FI51708B

    公开(公告)日：1976-11-30

    申请号：FI192069

    申请日：1969-06-27

    Applicant: HOECHST AG

    Inventor： DIEDRICH BERND ,  KEIL KARL DIETHER

    IPC: C08F4/64 ,  C08F10/00 ,  C08F4/02

    Abstract: 1275142 Supported olefin polymerization catalyst FARBWERKE HOECHST AG 21 Aug 1969 [21 Aug 1968 6 June 1969] 41828/69 Heading C3P Olefins are polymerized in the presence of (a) the reaction product of a magnesium alcoholate, mainly acting as a carrier, and a tetravalent halogen-containing titanium compound and (b) an organo-aluminium compound. The titanium compound may be prepared in situ for reaction with the magnesium compound. The magnesium alcoholate may include halogen, sulphate, carboxylate or hydroxy groups. The alcoholate may be reacted with other inert inorganic compounds, particularly magnesium compounds containing hydroxy groups, prior to reaction with the titanium compound. The mixture of magnesium compounds may be obtained by directly mixing or by partial hydrolysis of the magnesium alcoholate. In examples, Mg(OCH 3 ) 2 , Mg(OC 2 H 5 ) 2 or mixtures thereof with Mg(OH) 2 are reacted with TiCl 4 , TiCl 4 / Ti(O - i - C 3 H 7 ) 4 mixture, TiCl 4 /Ti(O - i- C 4 H 9 ) 4 mixture, or TiCl 2 (O-i-C 3 H 7 ) 2 and then mixed with Al(i-C 4 H 9 ) 3 , Al(C 2 H 5 ) 3 , Al(C 2 H 5 ) 2 H, or Al 2 Cl 3 (C 2 H 5 ) 3 and the catalysts used to polymerize ethylene or an ethylene/butene mixture.

Patent Agency Ranking