2.
    发明专利
    未知

    公开(公告)号:NO302180B1

    公开(公告)日:1998-02-02

    申请号:NO942828

    申请日:1994-07-29

    Applicant: BASF AG

    Abstract: A process for the preparation of homopolymers of ethylene or copolymers of ethylene with secondary amounts of other C3- to C12-alk-1-enes by catalytic polymerisation in a suspension or in the gas phase in the presence of an antistatic at a temperature of from 50 to 120 DEG C and at a pressure of from 5 to 50 bar, characterised in that the antistatic employed is a mixture of the following substances: a) a metal salt of medialanic acid of formula (I) , b) a metal salt of an anthranilic acid of formula (II) , where the organic radical R is either alpha ) -CO-(CH2)x-CH3 (III alpha ) or ss) -CO-(CH2)y-CH=CH-(CH2)z-CH3 (IIIss), where x, y and z are each an integer, and x is in the range from 6 to 18, y is in the range from 1 to 16, z is in the range from 1 to 16 and y + z is in the range from 4 to 17, and c) a polyamine obtainable by reacting epichlorohydrin with an aliphatic primary monoamine or an N-alkylalkylenediamine of the formula (IV> R NH-R -NH2 (IV), where R is a C8-C24-alkyl radical and R is a C2-C6-alkylene radical. d

    3.
    发明专利
    未知

    公开(公告)号:ES2062265T3

    公开(公告)日:1994-12-16

    申请号:ES90121605

    申请日:1990-11-12

    Applicant: BASF AG

    Abstract: The novel catalyst for the preparation of high-molecular-weight homopolymers or copolymers of ethene is obtainable by (1) treating a silicon dioxide-based support with (2) chromium trioxide or a chromium compound which can be converted into chromium dioxide under the conditions of step (3), and then (3) heating the resultant intermediate in an oxygen-containing stream of gas, where the support (1) is a specific silicic acid xerogel obtainable by extracting a maximum of 30% of water from a silicic acid hydrogel by means of alkanols, alkanones or mixtures thereof, and subsequently drying, comminuting and fractionating the product.

    4.
    发明专利
    未知

    公开(公告)号:FI943522A0

    公开(公告)日:1994-07-27

    申请号:FI943522

    申请日:1994-07-27

    Applicant: BASF AG

    Abstract: A process for the preparation of homopolymers of ethylene or copolymers of ethylene with secondary amounts of other C3- to C12-alk-1-enes by catalytic polymerisation in a suspension or in the gas phase in the presence of an antistatic at a temperature of from 50 to 120 DEG C and at a pressure of from 5 to 50 bar, characterised in that the antistatic employed is a mixture of the following substances: a) a metal salt of medialanic acid of formula (I) , b) a metal salt of an anthranilic acid of formula (II) , where the organic radical R is either alpha ) -CO-(CH2)x-CH3 (III alpha ) or ss) -CO-(CH2)y-CH=CH-(CH2)z-CH3 (IIIss), where x, y and z are each an integer, and x is in the range from 6 to 18, y is in the range from 1 to 16, z is in the range from 1 to 16 and y + z is in the range from 4 to 17, and c) a polyamine obtainable by reacting epichlorohydrin with an aliphatic primary monoamine or an N-alkylalkylenediamine of the formula (IV> R NH-R -NH2 (IV), where R is a C8-C24-alkyl radical and R is a C2-C6-alkylene radical. d

    5.
    发明专利
    未知

    公开(公告)号:FI924388A

    公开(公告)日:1993-04-05

    申请号:FI924388

    申请日:1992-09-30

    Applicant: BASF AG

    Abstract: In a new process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, first a support gel (1) is prepared by introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid optionally containing aluminium ions longitudinally and tangentially to the stream, spraying the resultant silicic acid hydrosol in drop form into a gaseous medium, and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel, without prior ageing, from salts by washing and optionally from some of the water by extraction with alcohols and/or ketones, and then drying the hydrogel. This gives the support gel (1), which is ground and fractionated according to particle size. In a second process step, the support gel (1) is charged with chromium trioxide or with a chromium compound which can be converted into chromium trioxide, after which the resultant chromium-containing support gel (2) is heated at from 400 to 1100 DEG C for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration greater than 10% by volume. It is essential for the process according to the invention that the drying of the hydrogel to form the support gel (1) takes place in a high-speed drier within a maximum time of 300 seconds at an inlet temperature of from 200 to 600 DEG C. The supported catalyst prepared in this way gives homopolymers and copolymers of ethylene having excellent low-temperature toughness.

    6.
    发明专利
    未知

    公开(公告)号:DE3775164D1

    公开(公告)日:1992-01-23

    申请号:DE3775164

    申请日:1987-10-10

    Applicant: BASF AG

    Abstract: Ethylene is homopolymerised, or copolymerised with minor amts. of 3-8C alpha-monoolefins, at 30-200 deg.C and 0.1-200 bar, with a Ziegler catalyst comprising (1) a new transition metal catalyst component, (2) an organo-Al component and (3) an organo-halogen component. (1) The component is prepd. by (1.1) first (1.1.1) contracting (I) finely divided porous SiO2.Al2O3 with particle dia. 1-1000 microns, pore vol. 0.3-3 cc/g and surface 100-1000 square m/g and (1.1.2) a soln. (II) obtd. by mixing (IIa) 100 pts. of 4-18C satd. aliphatic or satd. aliphatic/ aromatic oxahydrocarbon with 1-2 oxa O atoms, and (IIb) 0.01-50 pts. of a mixt. of (IIb1) 100 mols. of VY3.nZ-OH, (IIb2) 0.2-300 mols. of TiCl3 and/or tiBr3 or a complex of formula TiY3.nZ-OH and opt. (IIb3) 1-400 mols. of ZrCl4 and/or ZrBr4, to form a suspension (III), and evaporating the suspension at below 200 deg.C and above the m.pt. of (IIa), to give a solid intermediate (IV), (1.2) contacting (IV) with a soln. in an organic solvent of AlRmX3-m (V), to form a suspension of a solid prod. (VI) and (1.3) contacting the solid (VI), opt. suspended in an inert hydrocarbon with O2 at -25 to 100 deg. C for 5-500 mins., and recovering component (1). a = 0-2; Y = Cl or Br; n = 1-6; Z = monovalent, not more than 10C, satd. aliphatic or satd. aliphatic/aromatic hydrocarbon gp.; X = OR, Cl, Br or H; R = 1-18C hydrocarbon gp.; m = 1-3. (2) The component is AlRmX'3-m.. X' = OR, Cl or H. Ratios by wt. are (I):(IIb) = 1:0.01-2; (IV):(V) = 1:0.05-2. Atomic ratios are transition metal in (1):Al in (2) = 1:0.1-500; transition metal in (VI):O2 = 1:0.01-10. Molar ratio of (2):(3) = 1:0.001-50.

    PREPARATION OF HOMOPOLYMERS AND COPOLYMERS OF .alpha.- MONOOLEFINS USING A ZIEGLER CATALYST SYSTEM

    公开(公告)号:CA1244197A

    公开(公告)日:1988-11-01

    申请号:CA473588

    申请日:1985-02-05

    Applicant: BASF AG

    Abstract: .alpha.-Monoolefins are polymerized using a Ziegler cataLyst system comprising (1) a transition metal catalyst component and (2) an organoaluminum catalyst component, in which (1) is a solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxidic substance (I), as the carrier, with (1.1.2) a solution (II) consisting of (IIa) an organic solvent and (IIb) a transition metal composition to form a suspension (III), evaporating down this suspension to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the solid-phase intermediate (IV), obtained from (1.1), with (1.2.2) a solution of an organoaluminum compound (V) to form a suspension, the resulting suspended solid-phase product (VI) being the transition metal catalyst component (1). The characteristic feature is that (1) is a solidphase product (VI) obtained using a solution (II) consisting of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide and (IIb3) a zirconium tetrahalide.

    8.
    发明专利
    未知

    公开(公告)号:DE59506839D1

    公开(公告)日:1999-10-21

    申请号:DE59506839

    申请日:1995-11-17

    Applicant: BASF AG

    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..

    PROCESS FOR PRODUCING OF CATALYST FOR ALPHA-OLEFIN POLYMERIZATION AND FOR POLYMERIZATION OF ALPHA-OLEFIN

    公开(公告)号:HUT65998A

    公开(公告)日:1994-08-29

    申请号:HU9302677

    申请日:1993-09-22

    Applicant: BASF AG

    Abstract: Process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, in which (1) a support gel containing silicon dioxide is prepared by (1.1) introducing a sodium or potassium waterglass solution into a rotating stream of an aqueous mineral acid both longitudinally and tangentially to the stream, spraying the silicic acid hydrosol thus formed in droplet form into a gaseous medium, allowing it to solidify into a hydrogel and freeing the hydrogel thus obtained of salt by washing without prior aging, (1.2) drying the hydrogel resulting from (1.1) to form the support gel, and (2) the support gel (1) is loaded with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of the process step (3), which results in a chromium-containing support gel, and (3) the chromium-containing support gel (2) is heated in an anhydrous gas stream containing oxygen in a concentration of over 10% by volume for from 10 to 1000 minutes at from 400 to 1100 DEG C, the hydrogel resulting from the process step (1.1) being dried in the process step (1.2) over a time of not more than 60 seconds in a shaping flash dryer at an inlet temperature of from 80 to 400 DEG C .

    PROCESS FOR PRODUCING CARRYING CATALIST USED IN POLYMERIZATION OF ALPHA-OLEFINES

    公开(公告)号:HU9302677D0

    公开(公告)日:1993-12-28

    申请号:HU9302677

    申请日:1993-09-22

    Applicant: BASF AG

    Abstract: Process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, in which (1) a support gel containing silicon dioxide is prepared by (1.1) introducing a sodium or potassium waterglass solution into a rotating stream of an aqueous mineral acid both longitudinally and tangentially to the stream, spraying the silicic acid hydrosol thus formed in droplet form into a gaseous medium, allowing it to solidify into a hydrogel and freeing the hydrogel thus obtained of salt by washing without prior aging, (1.2) drying the hydrogel resulting from (1.1) to form the support gel, and (2) the support gel (1) is loaded with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of the process step (3), which results in a chromium-containing support gel, and (3) the chromium-containing support gel (2) is heated in an anhydrous gas stream containing oxygen in a concentration of over 10% by volume for from 10 to 1000 minutes at from 400 to 1100 DEG C, the hydrogel resulting from the process step (1.1) being dried in the process step (1.2) over a time of not more than 60 seconds in a shaping flash dryer at an inlet temperature of from 80 to 400 DEG C .

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