24.
    发明专利
    未知

    公开(公告)号:DE4416876A1

    公开(公告)日:1995-11-16

    申请号:DE4416876

    申请日:1994-05-13

    Applicant: BASF AG

    Abstract: The prodn. of bridged half-sandwich complexes of formula (I) comprises reacting cyclopentadienides of formula (II) with aziridines (III) and then reacting the ligand systems obtd. (IV) with metallating agents and MXn+2. M = Sub-gp. IV or V metal or lanthanide; X = halo, H, 1-10C alkyl, 3-10C cycloalkyl, 6-15C aryl, 7-15C alkylaryl or -OR (with R = 1-10C alkyl, 6-15C aryl, or alkaryl, aralkyl, fluoroalkyl or fluoroaryl with 1-10C alkyl gps. and 6-20C aryl gps.). n = valency of M minus 2; R = H, 1-10C alkyl, 3-10C cycloalkyl (opt. substd. with 1-10C alkyl), 6-15C aryl, (6-20C aryl)-(1-10C alkyl) or -Si(R )3 (with R = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl); R -R = as for R , opt. with two adjacent gps. forming a 4-15C cyclic gp.

    27.
    发明专利
    未知

    公开(公告)号:ES2128486T3

    公开(公告)日:1999-05-16

    申请号:ES94116511

    申请日:1994-10-20

    Applicant: BASF AG

    Abstract: Metallocene complexes of the general formula I in which the substituents have the following meaning: M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is fluorine, chlorine, bromine, iodine, hydrogen, C1- to C10-alkyl, C6- to C15-aryl or -OR , where R is C1- to C10-alkyl, C6- to C15-aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl in each case having 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical, R to R are hydrogen, C1- to C10-alkyl, 5- to 7-membered cycloalkyl which for its part can carry C1- to C10-alkyls as substituents, C6- to C15-aryl or arylalkyl, where, if appropriate, two adjacent radicals together can also stand for cyclic groups having 4 to 15 C atoms, or Si(R )3 where R is C1- to C10-alkyl, C6- to C15-aryl or C3- to C10-cycloalkyl, Z is silicon, germanium, tin or carbon, Y and Y are where R to R are hydrogen, C1- to C10-alkyl, 5- to 7-membered cycloalkyl which for its part can carry C1- to C10-alkyls as substituents, C6- to C15-aryl or arylalkyl, where, if appropriate, two adjacent radicals together can also stand for cyclic groups having 4 to 15 C atoms, or Si(R )3, where R is C1- to C10-alkyl, C6- to C15-aryl or C3- to C10-cycloalkyl, and u, v and w are integers from 0 to 7, with the proviso that the sum u + v + w >/= 2, and cyclopentadienyl compounds of the general formula II and cyclopentadienyl compounds of the general formula III as intermediates.t

    28.
    发明专利
    未知

    公开(公告)号:ES2128475T3

    公开(公告)日:1999-05-16

    申请号:ES94113846

    申请日:1994-09-03

    Applicant: BASF AG

    Abstract: A process for the preparation of multiphase homopolymers or copolymers of C2-C10-alk-1-enes, characterised in that the polymerisation is carried out in one reaction zone in the presence of two different catalyst systems, where one of the catalyst systems contains, as active constituents, a metallocene complex of the formula (I) or (II) in which M is a metal from group IVb, Vb or VIb of the Periodic Table, R and R are identical or different and are a hydrogen atom, a C1-C10-alkyl group, a C1-C10-alkoxy group, a C6-C10-aryl group, a C6-C10-aryloxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C7-C40-alkylaryl group, a C8-C40 arylalkenyl group or a halogen atom, R and R are identical or different and are a hydrogen atom, a halogen atom, a C1-C10-alkyl group, which may be halogenated, a C6-C10-aryl group, an -NR 2, -SR , -OSiR 3, - SiR 3 or -PR 2 radical, in which R is a halogen atom, a C1-C10-alkyl group or a C6-C10-aryl group, and R and R are identical or different and are as defined for R and R with the proviso that R and R are not hydrogen.

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