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    32.
    发明专利
    未知

    公开(公告)号：SE312236B

    公开(公告)日：1969-07-07

    申请号：SE404758

    申请日：1958-04-25

    Applicant: HOECHST AG

    Inventor： RUST K ,  GUMBOLD A ,  HEITZER E ,  HOERNDLER K ,  SOMMER S

    IPC: C01G23/02 ,  C08F2/00 ,  C08F10/00 ,  B01J11/84

    Abstract: C3-8 a -olefins such as propylene, butene-1, 3-methylbutene-1 or styrene are polymerized to products of more than 90% isotactic content, by use of a solid catalyst prepared by reacting an alkyl aluminium halide with TiCl4 in a reaction medium in the range of - 20 to + 40 DEG C. and in molar ratio of 0,5 to 2:1 and then heating the catalyst at 40-150 DEG C., which catalyst is activated with an organoaluminium compound, preferably an alkyl aluminium halide. The catalyst may be separated from the reaction medium and washed with an inert solvent, before or after the heat treatment; or the latter may be carried out by washing the catalyst with inert solvent at a raised temperature. Optically, the heat treatment is effected in presence of diphenyl ether, tetrahydrofurane, dioxane, sodium chloride or an organoaluminium compound.

    34.
    发明专利
    未知

    公开(公告)号：SE7502296L

    公开(公告)日：1976-08-02

    申请号：SE7502296

    申请日：1975-02-28

    Applicant: HOECHST AG

    Inventor： RUST K ,  SCHROTT E ,  STRAMETZ H ,  KABLITZ H-J

    IPC: C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

    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.

    36.
    发明专利
    未知

    公开(公告)号：DK133159B

    公开(公告)日：1976-03-29

    申请号：DK543771

    申请日：1971-11-05

    Applicant: HOECHST AG

    Inventor： GORDON W ,  RUST K ,  SCHROTT E

    IPC: C08F4/64 ,  C08F10/00 ,  C08F10/06

    Abstract: 1339332 α-Olefin polymerization FARBWERKE HOESCHST AG 5 Nov 1971 [7 Nov 1970] 51582/71 Heading C3P α-Olefins CH 2 = CHR where R is aliphatic with 1 to 4 carbon atoms are polymerized by themselves or with up to 5% by weight ethylene or block polymerized by themselves or with up to 25% by weight ethylene in suspension or in the gas phase at temperatures of 20‹ C. to 130‹ C. and gauge pressures of 0 to 50 atmospheres in the presence of a catalyst comprising (a) a phosphoric acid N alkylamide O = P(NR 2 ) 3 where the groups R may be the same or different hydrocarbon radicals having up to 4 carbon atoms and may be linked to other R groups, (e.g. hexaethyl or hexamethyl trisamide of phosphoric acid or phosphoric acid trisethyleneimide) (b) a cyclopolyalkene with 7 or 8 ring members and 2 to 4 non-cumulative double bonds in the ring or alkyl or alkoxysubstituted derivatives thereof having 1 to 4 carbon atoms in the alkyl radical (e.g. 1, 3, 5 cycloheptatriene, norcaradiene, cyclooctatriene or cyclooctatetraene) (c) a halogen containing compound of trivalent titanium and (d) a halogen free organoaluminium compound. In the examples propylene is polymerized in the presence and absence of preformed polypropylene using as catalyst TiCl 3 1/3 AlCl 3 , triethylaluminium, phosphoric acid hexamethyl trisamide and 1,3,5 cycloheptatriene or cyclooctatetraene. In Example 15 the product is treated with propanol and washed with acetone. Reference has been directed by the Comptroller to Specifications 920, 118, 1,018,341 and 1,254,016.

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