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    22.
    发明专利
    未知

    公开(公告)号：SE345465B

    公开(公告)日：1972-05-29

    申请号：SE1126167

    申请日：1967-08-08

    Applicant: HOECHST AG

    Inventor： DIEDRICH B ,  KEIL K

    IPC: B01J31/06 ,  B01J37/16 ,  C08F4/60 ,  C08F4/00 ,  C08F4/642 ,  C08F4/655 ,  C08F10/00 ,  C08F110/02 ,  C08F3/06 ,  C08F15/04

    Abstract: 1,155,478. Polymerizing ethylene with Zieglertype catalysts. FARBWERKE HOECHST A.G. 9 Aug., 1967 [9 Aug., 1966], No. 36518/67. Heading C3P. Olefin polymers are made by polymerizing ethylene alone or in admixture with up to 10%, of a higher alpha-olefin having 3 to 15 carbon atoms in solution, suspension, or the gaseous phase, at a temperature in the range of 20‹ to 250‹ C., in presence of hydrogen, and under a pressure up to 10 atmospheres and in the presence of as catalyst a mixture of from 0À05 to 0À3 millimole of a trivalent chlorine-containing compound per litre of dispersing agent or solvent, or per half litre of reaction volume, if the polymerization is carried out in the gaseous phase, and an organo-aluminium compound in amount corresponding to from 0À1 to 3À0 millimoles of aluminium equivalent per litre of dispersing agent, solvent, or reaction volume. The organoaluminium compound is selected from, (a) a compound of the formula AlR 1 3 where R 1 represents a C 4 to C 40 hydrocarbon radical or (b) a reaction product of a trialkylaluminium compound or an alkylaluminium hydride with a diolefin having 4 to 20 carbon atoms, e.g. triisobutyl Al and isoprene (polymeric isoprenyl aluminium). The trivalent chlorine-containing Ti-compound is preferably obtained by reducing a compound of the formula Ti(OR) 4-n Cl n where n is 1 to 4, and R represents a C 2 to C 8 hydrocarbon radical, with an alkyl Al sesquichloride, and/or a dialkyl Al monochloride, and/or isoprenyl Al at a temperature in the range of - 60‹ to +70‹C., and if desired heat-treating and washing the product. The monomers polymerized are purified with a copper catalyst. Exemplified polymers are polyethylene, and a copolymer of ethylene and butene-1.

    25.
    发明专利
    未知

    公开(公告)号：BR7900195A

    公开(公告)日：1979-08-14

    申请号：BR7900195

    申请日：1979-01-12

    Applicant: HOECHST AG

    Inventor： DIEDRICH B ,  BOHM L ,  HEINE O

    IPC: C08F2/00 ,  C08F2/38 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/16 ,  C08J5/22 ,  C08J5/18

    Abstract: Copolymers of ethylene and higher 1-olefins which are suitable for the manufacture of thin films, are preferably prepared in a two-step process, the first step yielding a polymer having a high molecular weight, the second step giving a polymer having a low molecular weight. The films obtained from these copolymers have improved mechanical properties as compared to films manufactured from known corresponding raw materials. The mechanical properties are furthermore uniform in longitudinal and in transverse direction.

    26.
    发明专利
    未知

    公开(公告)号：NO132871C

    公开(公告)日：1976-01-21

    申请号：NO267169

    申请日：1969-06-26

    Applicant: HOECHST AG

    Inventor： DIEDRICH B ,  KEIL K D

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

    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.

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