中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

25 records (took 0.02 seconds)

    12.
    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.

    17.
    发明专利
    未知

    公开(公告)号：DE59408572D1

    公开(公告)日：1999-09-09

    申请号：DE59408572

    申请日：1994-10-06

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS ,  SCHLUND RUEGER ,  KLIMESCH ROGER

    IPC: B44F1/12 ,  C08F8/12 ,  C08F210/02

    Abstract: The preparation of carboxyl-containing copolymers of ethylene by polymer-analogous pyrolytic ester cleavage of copolymers, comprising a) from 60 to 99.9 mol% of ethylene, b) from 0.1 to 40 mol% of (C4- to C8-tert-alkyl) esters of copolymerisable C3-C12-carboxylic acids and c) from 0 to 20 mol% of further copolymerisable monomers by carrying out the pyrolytic ester cleavage at temperatures of from 150 to 250 DEG C in the presence of organic sulphonic acids, in the absence of a solvent and in the virtual absence of initiators for free-radical reactions.

Patent Agency Ranking