2.
    发明专利
    未知

    公开(公告)号:DE4203753A1

    公开(公告)日:1993-08-12

    申请号:DE4203753

    申请日:1992-02-10

    Applicant: BASF AG

    Abstract: Catalyst systems for polymerising C2 to C10 alkenes, containing as active components metallocene complexes of metals of sub-groups IV and V of the periodic system, an oligomeric aluminium oxide compound and a cyclic boron compound of general formula (IV) in which R to R are C1 to C10 alkyl groups which may be substituted singly to triply by halogen atoms, C6 to C15 aryl groups or C1 to C10 alkoxy groups; C4 to C7 cycloalkyl groups which may be substituted singly to triply by halogen atoms, C1 to C10 alkyl groups or C1 to C10 alkoxy groups; C1 to C10 alkoxy groups which may be substituted singly to triply by halogen atoms, C1 to C10 alkyl groups or C6 to C15 aryl groups; or C6 to C15 aryl groups which may be substituted singly to fivefold by halogen atoms, C1 to C10 alkyl groups or C1 to C10 alkoxy groups.

    Polymer mixture, especially for production of film

    公开(公告)号:DE19745047A1

    公开(公告)日:1999-04-15

    申请号:DE19745047

    申请日:1997-10-11

    Applicant: BASF AG

    Abstract: A polymer mixture with good processing properties, e.g. for blown or cast film, contains an ethylene copolymer and another ethylene copolymer with a higher density and a broader molecular weight distribution. A polymer mixture is claimed containing at least 40-85 wt% ethylene copolymer (A) with a density of 0.91-0.93 g/cm , a high-load melt flow rate (HLMFR; 190/21.6) of 5-60 g/10 mins. and a mol. wt. distribution (Mw/Mn) of not more than 3, and more than 15 but not more than 60 wt% ethylene copolymer (B) with a density of 0.93-0.945 g/cm , an HLMFR of 8-20 g/10 mins. and an Mw/Mn ratio of at least 7. Independent claims are also included for (a) a process for the production of film from this polymer mixture; (b) film produced from the polymer mixture.

    4.
    发明专利
    未知

    公开(公告)号:ES2098081T3

    公开(公告)日:1997-04-16

    申请号:ES94111341

    申请日:1994-07-21

    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:DE59401850D1

    公开(公告)日:1997-04-03

    申请号:DE59401850

    申请日:1994-07-21

    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

    6.
    发明专利
    未知

    公开(公告)号:AT149183T

    公开(公告)日:1997-03-15

    申请号:AT94111341

    申请日:1994-07-21

    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

    Prepn. of polymers of vinyl:aromatic cpds. using catalyst system

    公开(公告)号:DE19500811A1

    公开(公告)日:1996-07-18

    申请号:DE19500811

    申请日:1995-01-13

    Applicant: BASF AG

    Abstract: Polymers of vinylaromatic cpds. are prepd. at 0-150 deg C, in presence of a catalyst system comprising (A) at least 2 different metallocene complexes and (B) a cpd. forming metallocenium ions. Pref. the aromatic cpds. have formula (I) (where R = H (pref.) or 1-4C alkyl; R -R = H (pref.), 1-12C (1-4C) alkyl (pref.), or halogen (pref. Cl), or 2 adjacent gps. together form a 4-15C (4-12C) cyclic gp., or Ph, biphenyl, naphthalene or anthracene). The components are metallocene complexes formula (II) (where R -R = H, 1-10C alkyl, 5-7C cycloalkyl (opt. carrying 1-6C alkyl gps. as substits.), 6-15C aryl or arylalkyl, or 2 adjacent gps. form together 4-15C cyclic gps., or Si(R )3; R = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl; M = metal or 3rd-6th sub-gps. or of the lanthanide series (pref. metal of 4th sub-gp.); Z -Z = H, halogen (Pref.), 1-10C alkyl (pref.), 1-10C alkoxy (pref.), 6-15C aryl or 1-15C aryloxy; z1-z5 = 0-5; z1+z2+z3+z4+z4+z5 = valency of (M - 1)). (B) The components are open-chain or cyclic alumoxan cpds. of formulae (R )(R )Al-(O-Al(R ))mR (III) or (IV) (where R = 1-4C alkyl; m = 5-30). The polymers are used to produce mouldings (claimed). Use is esp. in electrical and high temp. resistant applications. A simple process gives syndiotactic polymers with wide distribution of mol.wt. The polymers have mol.wt. 10000-10000000 (50000-1000000) and Mw/Mn of 5-100.

    Transition metal-amidinato complexes

    公开(公告)号:DE4420783A1

    公开(公告)日:1995-12-21

    申请号:DE4420783

    申请日:1994-06-15

    Applicant: BASF AG

    Abstract: A catalyst system (I) for the polymerisation of olefinic hydrocarbons contains (A) a metal-amidinato complex of formula (A) and opt. (B) an acceptor cpd. for substit. X in (A) as activator; M = Sub-Gp. III, IV, V or VI metal or lanthanide metal; X = negative leaving atom or gp. (these can be identical or different if (n = m) is greater than 1); R -R = C-organic or Si-organic gps.; n = valency of M in complex (A); m = 1-5; n - m = O or more. Also claimed is a process for the prodn. of homo- or copolymers of ethylene and other olefins by insertion polymerisation using catalyst (I). Also claimed are polymers of ethylene and alkyl- and aryl-substd. olefins obtd. by this process.

    10.
    发明专利
    未知

    公开(公告)号:DE4231749A1

    公开(公告)日:1994-03-24

    申请号:DE4231749

    申请日:1992-09-23

    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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