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    61.
    发明专利
    未知

    公开(公告)号：DE4442166A1

    公开(公告)日：1996-05-30

    申请号：DE4442166

    申请日：1994-11-26

    Applicant: BASF AG

    Inventor： ROHDE WOLFGANG DR ,  FUNK GUIDO DR ,  GOERTZ HANS-HELMUT DR ,  OSTERLOH ROLF DR

    IPC: C08F6/02 ,  C08F10/00 ,  C08F6/08

    Abstract: In the prepn. of stabilised polyolefins (I), which have a small fraction extractable with cold heptane, by polymerisation of olefins with Ziegler or Phillips catalysts, (I) is brought into contact with an involatile phenol deriv. (II) immediately after leaving the polymerisation reactor. Also claimed are (I) per se and fibres, films and mouldings contg. (KI). Pref. (II) has a mol.wt. of at least 250 and a b.pt. of over 270 degrees C at 100 kPa. (I) esp. is a 2,6-di-tert.-butylphenol deriv..

    66.
    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.

    67.
    发明专利
    未知

    公开(公告)号：DE3834088A1

    公开(公告)日：1990-04-12

    申请号：DE3834088

    申请日：1988-10-07

    Applicant: BASF AG

    Inventor： SAIVE ROLAND DR ,  FUNK GUIDO DR ,  HEMMERICH RAINER DR

    IPC: C08F4/607 ,  C08F4/629 ,  C08F4/642 ,  C08F4/647 ,  C08F4/65 ,  C08F4/685 ,  C08F10/02

    Abstract: The invention relates to the homopolymerisation or copolymerisation of ethene by means of a Ziegler catalyst system comprising (1) a transition-metal catalyst component, (2) an organoaluminium catalyst component and (3) an organohalogen catalyst component, characterised in that (1) is the solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxide (1) as a support with (1.1.2) a solution (II) of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide or titanium trihalide/alcohol complex and (IIC) a silicon or boron compound, to form a suspension (III), evaporating the latter to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the intermediate (IV) obtained from (1.1) with (1.2.2) a dissolved organoaluminium compound (V), to form a suspension, the solid-phase product (VI) resulting therefrom as the suspended material being the transition-metal catalyst component (1).

    68.
    发明专利
    未知

    公开(公告)号：DE3833445A1

    公开(公告)日：1990-04-05

    申请号：DE3833445

    申请日：1988-10-01

    Applicant: BASF AG

    Inventor： FUNK GUIDO DR ,  WEBER SIEGFRIED DR ,  HEMMERICH RAINER DR

    IPC: C08F4/64 ,  C08F2/34 ,  C08F2/44 ,  C08F4/60 ,  C08F10/02

    Abstract: The invention relates to a process for the preparation of ultrahigh-molecular-weight ethylene polymers in the gas phase in a fluidised bed of particulate polymer by the continuous introduction of the appropriate monomers into a polymerisation system at from 60 to 120 DEG C and at from 5 to 60 bar in the presence of a reaction product of a titanium-containing catalyst and an antistatic and in the presence of a monohydric or polyhydric alcohol, and to an ultrahigh-molecular- weight ethylene polymer prepared by said process.

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