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    21.
    发明专利
    未知

    公开(公告)号：DE10006900A1

    公开(公告)日：2001-08-23

    申请号：DE10006900

    申请日：2000-02-16

    Applicant: BASELL POLYOLEFINE GMBH ,  BASF AG

    Inventor： MAEHLING FRANK-OLAF ,  DECKERS ANDREAS ,  LITTMANN DIETER ,  SUTORIS HEINZ FRIEDRICH ,  EVERTZ KASPAR

    IPC: C08F2/01 ,  C08F2/38 ,  C08F2/40 ,  C08F10/00 ,  C08F110/02 ,  C08F297/08 ,  C08F10/02

    Abstract: The invention relates to a method for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of radically decomposing polymerization initiators in a continuously operating polymerization device. Said polymerization device is composed of a fresh gas supply, a pre-compressor, a post-compressor, a reactor, a pressure maintaining valve, of a high-pressure circuit, which is provided with a high-pressure product separator and with a high-pressure circuit gas return, and of a product valve and a low-pressure circuit, which is provided with a low-pressure product separator and with a low-pressure circuit gas return. The inventive method is characterized in that nitrogen monoxide or oxygen is added in a dosed manner as an inhibitor into the high-pressure circuit, into the low-pressure circuit and/or into the pre-compressor.

    23.
    发明专利
    未知

    公开(公告)号：ES2084490T3

    公开(公告)日：1996-05-01

    申请号：ES93906586

    申请日：1993-03-23

    Applicant: BASF AG

    Inventor： EVERTZ KASPAR ,  SCHLUND RUEGER ,  SCHWEIER GUENTHER ,  BRINTZINGER HANS ,  ROELL WERNER ,  JUTZI PETER

    IPC: C07F17/00 ,  C08F4/42 ,  C08F4/60 ,  C08F4/602 ,  C08F4/619 ,  C08F4/6192 ,  C08F4/642 ,  C08F4/6592 ,  C08F4/68 ,  C08F10/00

    Abstract: PCT No. PCT/EP93/00694 Sec. 371 Date Jun. 13, 1994 Sec. 102(e) Date Jun. 13, 1994 PCT Filed Mar. 23, 1993 PCT Pub. No. WO93/20113 PCT Pub. Date Oct. 14, 1993.Catalyst systems for the polymerization of C2-C10-alk-1-enes contain, as active components, a) a metallocene complex of the general formula I III, IV or v of the Periodic Table of elements or a metal selected from the group consisting of the lanthanides, X is fluorine, chlorine, bromine, iodine, hydrogen, C1-C10-alkyl, C6-C15-aryl or -OR7, R7 is C1-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl, in each case having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, n is the valency of M minus two, R1 to R6 are each hydrogen, C1-C10-alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C1-C10-alkyl as a substituent, C6-C15-aryl or arylalkyl, where two adjacent radicals together may furthermore form a cyclic group of 4 to 15 carbon atoms, or Si(R8)3, R8 is C1-C10-alkyl, C6-C15-aryl or C3-C10-cycloalkyl, E1 and E2 are independent of one another and are each Si(R9)2, Ge(R9)2, Sn(R9)2 or C(R9)2-C(R9)2 and R9 is C1-C10-alkyl, C3-C10-cycloalkyl or C6-C15-aryl, and b) an open-chain or cyclic alumoxane compound of the general formula II or III II n integer of from 5 to 30.

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