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    Catalyst systems for comb-like polypropylene prodn.
    114.
    发明专利
    Catalyst systems for comb-like polypropylene prodn. 未知

    公开(公告)号：DE4425787A1

    公开(公告)日：1996-01-25

    申请号：DE4425787

    申请日：1994-07-21

    Applicant: BASF AG

    Inventor： SEELERT STEFAN DR ,  FISCHER DAVID DR ,  MARCZINKE BERND LOTHAR DR ,  LANGHAUSER FRANZ DR ,  KERTH JUERGEN DR ,  MUELLER HANS-JOACHIM DR

    IPC: C08F4/639 ,  C08F4/6392 ,  C08F4/642 ,  C08F4/76 ,  C08F10/00 ,  C08F110/06 ,  C08F10/06 ,  C08L23/12

    Abstract: A process is claimed for the prodn. of comb-like polypropylene (PP) of formula (I) in the presence of catalyst systems contg., as active component (A), bridged metallocenes of formula (II): M = Ti, Zr, Hf, V, Nb or Ta; X = F, Cl, Br, I, H, 1-10C alkyl, 6-15C aryl or -OR5 (with R5 = 1-10C alkyl, 6-15C aryl, or alkaryl, aralkyl, fluoroalkyl or fluoroaryl with 1-10C alkyl gps. and 6-20C aryl gps.); R1-R4 = H, 1-10C alkyl, 7-15C cycloalkyl (opt. substd. with 1-6C alkyl), 6-15C aryl or arylalkyl, -Si(R6)3 (with R6 = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl); or two adjacent R gps. may form a 4-15C cyclic gp.; A = -O-, -S-, -NR7-, -PR7- or a gp. of formula (with R8-R11 = as for R1-R4, including Si(R12)3 with R12 as for R6, R7 = 1-10C alkyl, 6-15C aryl, 3-10C cycloalkyl or Si(R13)3 with R13 = 1-10C alkyl, 6-15C aryl, 3-10C cycloalkyl or alkylaryl); Y = Si, Ge, Sn or C; R14 = H, 1-10C alkyl, 3-10C cycloalkyl or 6-10C aryl; m, n = positive integers; O = 1-50; p = 1, 2, 3 or 4.

    116.
    发明专利
    未知

    公开(公告)号：ES2077121T3

    公开(公告)日：1995-11-16

    申请号：ES91112288

    申请日：1991-07-23

    Applicant: BASF AG

    Inventor： HUNGENBERG KLAUS-DIETER DR ,  KERTH JUERGEN DR

    IPC: C08F4/646 ,  C08F4/649 ,  C08F4/654 ,  C08F10/00 ,  C08F10/06

    Abstract: Catalyst systems of the Ziegler-Natta catalyst type, containing, as active constituents, …… a) a titanium-containing solid component containing titanium, magnesium, halogen and a carboxylic acid ester as electron donor, … b) an aluminium component, … c) a further electron donor component, and, as additional component, … d) an organometallic compound of the formula A or B … …… in which M is an element of main group I and M is an element of main group II of the Periodic Table, and R and R are identical or different and are C1-C10-alkyl, C6-C12-aryl or arylalkyl, or 5- to 7-membered cycloalkyl, which may itself carry C1-C8-alkyl groups. … The polymers prepared with the aid of the catalyst systems according to the invention are distinguished, in particular, by a low fine dust content.

    117.
    发明专利
    未知

    公开(公告)号：DE4406964A1

    公开(公告)日：1995-09-07

    申请号：DE4406964

    申请日：1994-03-03

    Applicant: BASF AG

    Inventor： LANGHAUSER FRANZ DR ,  FISCHER DAVID DR ,  KERTH JUERGEN DR ,  SCHWEIER GUENTHER DR ,  BARSTIES ELKE ,  BRINTZINGER HANS-HERBERT PROF ,  SCHAIBLE STEFAN ,  ROELL WERNER DR

    IPC: C08F4/622 ,  C08F4/02 ,  C08F4/60 ,  C08F4/602 ,  C08F4/616 ,  C08F4/628 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/642 ,  C08F4/656 ,  C08F4/6592 ,  C08F4/68 ,  C08F10/00

    Abstract: New supported catalyst systems prepd. by the following method: (a) reaction of a fine particled carrier with an alpha -tris-alkoxysilyl- OMEGA -haloalkyl cpd.; (b) addn. of a metallocene complex of formula (I); (c) reaction with a quaternising agent of formula (V); and (d) opt. addn. of an open chain or cyclic alumoxane cpd. of formula (VI) or (VII). M = Ti, Zr, Hf,V, Nb or Ta; X = F, Cl, Br, I, H 1-10C alkyl, 6-15C aryl or -OR ; R = 1-10C alkyl, 6-15C aryl, 1-10C alkyl, 6-20C aryl, 6-20C aryl - 1-10C alkyl, 1-10C fluoroalkyl or 6-20C fluoroaryl; R -R and R -R = H, 1-10C alkyl, opt.1-10C alkyl substd. 5-7 membered cycloalkyl or 6-15C aryl(alkyl),with which two neighbouring gps. may opt. form 4-15C cyclic gps., or Si(R )3; R = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl; R = : Q = N,P, As, Sb or Bi; R , R = 1-10C alkyl, 3-15C cycloalkyl, 6-15C aryl, 1-10C alkyl- 6-20C aryl, 6-20C aryl -1-10C alkyl, 1-10C fluoroalkyl or 5-20C fluoroaryl, or R and R may form a 2-15C heterocyclic gp. contg. 1-8 heteroatoms from main gps. III-VI of the periodic table; R = H, 1-10C alkyl, opt.1-10C alkyl substd. 5-7 membered cycloalkyl, 6-15C aryl(alkyl) in which two neighbouring gps. may opt. form 4-15C cyclic gps. Si(R )3 or a gp. of formula R = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl; Q = N, P, As, Sb, or Bi; R , R = 1-10C alkyl, 3-15C cycloalkyl, 6-15C aryl, 1-10C alkyl 6-20C aryl, 6-20C aryl -1-10C alkyl, 1-10C fluoroalkyl, 6-20C fluoroaryl or R14 and R15 may form a 2-15C heterocyclic gp.contg. 1-8 heteroatoms from main gps. III-VI of the periodic table; Y = a gp. of formula Z = Si,Ge, Sn or C; R -R = H, 1-10C alkyl, 3-10C cycloalkyl or 6-15C aryl, with two neighbouring gps. opt. forming a 4-15C cyclic gp.; A = 1-10C alkyl, 3-15C cycloalkyl, 6-15C aryl, 1-10C alkyl-6-20C aryl, 6-20C aryl-1-10C alkyl, 1-10C fluoroalkyl or 6-20C fluoroaryl; X = F, Cl, Br, I, SO3 , SO4 or NO3 ; a = 1-2; R = 1-4C alky; and m = 5-30. Also claimed are (i) the prepn. of the supported catalyst systems, and (ii) use of the catalyst systems for the prepn. of 2-10C alk-1-enes at -50 to 300 degrees C. 0.5-3000 bar.

    120.
    发明专利
    未知

    公开(公告)号：DE59105679D1

    公开(公告)日：1995-07-20

    申请号：DE59105679

    申请日：1991-01-08

    Applicant: BASF AG

    Inventor： SCHWAGER HARALD DR ,  KERTH JUERGEN DR ,  ZOLK RALF DR ,  KOELLE PETER DR ,  WERNER RAINER ALEXANDER DR

    IPC: C08F4/655 ,  C08F4/60 ,  C08F297/02 ,  C08F297/08

    Abstract: Propylene-ethylene copolymers obtainable by two-step polymerisation from the gas phase in an agitated fixed bed by means of a Ziegler-Natta catalyst system containing an aluminium compound as cocatalyst in addition to a titanium-containing solid component, in which, in a first polymerisation step, propylene is polymerised at a pressure of from 20 to 40 bar, a temperature of from 60 to 90 DEG C and a mean residence time of the reaction mixture of from 1 to 5 hours, giving from 0.05 to 2 kg of polypropylene per mmol of the aluminium compound, and subsequently, in a second polymerisation step, a mixture of propylene and ethylene is polymerised onto the polymer discharged from the first polymerisation step, at a pressure of from 5 to 30 bar, this pressure being at least 7 bar below the pressure in the first polymerisation step, a temperature of from 30 to 100 DEG C and a mean residence time of the reaction mixture of from 1 to 5 hours, the ratio between the partial pressures of propylene and ethylene being set in the range from 0.5 : 1 to 5 : 1, and a) the weight ratio between the monomers reacted in the first and second polymerisation steps is set so that it is in the range from 2.5 : 1 to 20 : 1, or b) the polymerisation in the second polymerisation step is carried out in the presence of a C1-C8 alkanol, the weight ratio between the monomers reacted in the first and the second polymerisation steps being from 1 : 1 to 20 : 1. s

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