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    34.
    发明专利
    未知

    公开(公告)号：DE3881371D1

    公开(公告)日：1993-07-01

    申请号：DE3881371

    申请日：1988-12-31

    Applicant: BASF AG

    Inventor： HASENBEIN NORBERT DR ,  SCHWEIER GUENTHER DR ,  GROPPER HANS DR ,  WERNER RAINER ALEXANDER DR

    IPC: C08F255/02 ,  C08F287/00 ,  C09J123/04 ,  C09J151/06

    Abstract: In the prodn. of graft copolymers (I) by grafting ethylenically unsatd. carboxylic acids and/or carboxylic anhydrides on polyolefin mixts (II), the novelty is that (II) consists of 51-95 (wt.)% (co)polyethylene (III) and 5-49% ethylene-propylene block copolymer (IV) other than (III). Pref. (IV) contains over 35% elastomer (determined as xylene extract at 80 deg. C). (II) contains 5-20, pref. 8-12 pts. (IV). (III) has a density of min. 0.930 g/cc.

    35.
    发明专利
    未知

    公开(公告)号：DE4121355A1

    公开(公告)日：1993-01-07

    申请号：DE4121355

    申请日：1991-06-28

    Applicant: BASF AG

    Inventor： MUELLER HANS-JOACHIM DR ,  KONRAD RAINER DR ,  SCHWEIER GUENTHER DR ,  WEBER SIEGFRIED DR ,  SAIVE ROLAND DR ,  KOELLE PETER DR

    IPC: C08F4/02 ,  C08F4/24 ,  C08F4/60 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02

    Abstract: A novel Phillips catalyst for the homopolymerisation of ethylene and the copolymerisation of ethylene with alpha -olefins contains, as catalytically active components, a specific aluminium phosphate-supported chromium catalyst and cocatalysts of the general formulae I to IV MR M R2 M R 3-nXn MM RR@ (I) (II) (III) (IV> in which the index and variables have the following meanings: M is lithium, sodium or potassium, M is magnesium or zinc, M is boron or aluminium, R is C1- to C10-alkyl or C6- to C20-aryl, R is R or C1- to C10-alkoxy or C6- to C20-aryloxy, X is chlorine, bromine or iodine, N is 0, 1 or 2. The aluminium phosphate-supported chromium catalyst is obtainable by applying chromium compounds to a finely divided aluminium phosphate having a P:Al molar ratio of close or equal to 1 and a pore volume of > 1 cm /g, and activating the resulting intermediate at elevated temperatures in an oxidising atmosphere. The novel Phillips catalyst has an extremely long mean service life, and its productivity can be further increased by adding hydrogen.

    36.
    发明专利
    未知

    公开(公告)号：DE3779582D1

    公开(公告)日：1992-07-09

    申请号：DE3779582

    申请日：1987-11-25

    Applicant: BASF AG

    Inventor： HEMMERICH RAINER DR ,  KONRAD RAINER DR ,  MUELLER-MALL RUDOLF DR ,  SCHWEIER GUENTHER DR ,  GROPPER HANS DR

    IPC: C08F4/02 ,  C08F4/24 ,  C08F4/48 ,  C08F4/62 ,  C08F10/00

    Abstract: Gritty ethylene homopolymers or copolymers with minor amts. of 3-12C alpha-olefins are prepd. by polymerising at 30-150 deg.C and 2-150 bar, using a CrO3 catalyst system comprising (a) a CrO3 catalyst obtd. by (1) loading a porous carrier, consisting of or contg. SiO2, with particle size 50-150 microns, pore vol. 1-3 cc/g, and surface 200-600 square m/g, with CrO3 or a cpd. converting to CrO3, in ratio by wt. of carrier:Cr of 100:0.1-10, and (2) heating the prod. at 400-1100 deg.C in a gas stream free from H2O and contg. more than 10 vols.% of O2, for 10-1000 mins., and (b) a co-catalyst, a Li-alkyl or formula LiR, (R = 2-6C alkyl) in atomic ratio of Cr:Li of 1:0.05-100.

    37.
    发明专利
    未知

    公开(公告)号：DE3778284D1

    公开(公告)日：1992-05-21

    申请号：DE3778284

    申请日：1987-10-20

    Applicant: BASF AG

    Inventor： KONRAD RAINER DR ,  FUNK GUIDO DR ,  SCHMIDT-THUEMMES JUERGEN DR ,  MUELLER-MALL RUDOLF DR ,  SCHWEIER GUENTHER DR

    IPC: C08F4/02 ,  C08F4/24 ,  C08F4/48 ,  C08F4/62 ,  C08F10/00 ,  C08F10/02

    Abstract: Ethylene is polymerised, or copolymerised with minor amts. of 3-12C alpha-monoolefins, at 30-150 deg.C and 2-150 bar, in presence of a Phillips catalyst comprising (1) a supported catalyst comprising a carrier loaded with oxidic Cr, oxidic P and oxidic Al, and (2) a cocatalyst. (1) The supported catalyst is prepd. by (1.1) forming a catalyst pre-prod. by (1.1.1) in a 1st sub-stage, forming a suspension by mixing (1.1.1.1) 100 pts. of a silicate carrier with particle size 1-400 microns, pore vol. 0.5-3 cc/g and surface 100-1000 square m/g, with (1.1.1.2) 150-5000 pts. of an inert organic solvent, (1.1.2) in a 2nd sub-stage, combining 5-500 pts. of a solvent with (1.1.2.2) 1 pt. of Cr as Cr3+, and (1.1.2.3) 0.5-10 pts. of Al as AlR23, and (I) holding the mixt. at 0-100 deg.C for 5-300 mins., (1.1.3) in a 3rd sub-stage, combining 100 pts. of the carrier (1.1.1.1) as the suspension from (1.1.1) with (1.1.3.2) a cpd. of formula P(O)(OR3)3 or P(O)H(OR3)2, and (1.1.3.3) the prod. from sub-stage (1.1.2), to give 0.1-5 pts. of Cr and 0.5-10 pts. of P, and holding the mixt. at 0-60 deg.C for 5-300 mins., (1.1.4) in a 4th sub-stage evaporating to dryness at not above 150 deg.C, and opt. under reduced pressure, the suspension obtd. in sub-stage (1.1.3) and then (1.2) in a 2nd stage, converting the catalyst pre-prod. from (1.1) to the supported catalyst by (1.2.1) in a 1st sub-stage holding the pre-prod. in a dry N2 stream at 150-300 deg.C for 60-500 mins., (1.2.2) in a 2nd sub-stage, holding the intermediate from (1.2.1) in a dry gas stream contg. more than 10 vols. % of O2 at 300-900 deg.C for 10-1000 mins., and finally (1.2.3) in a 3rd sub-stage, holding the intermediate from (1.2.2) in a dry N2 stream at 50-400 deg.C for 10-300 mins.

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