52.
    发明专利
    未知

    公开(公告)号:DE3841436A1

    公开(公告)日:1990-06-13

    申请号:DE3841436

    申请日:1988-12-09

    Applicant: BASF AG

    Abstract: The area is the polymerization of ethylene by Phillips catalysis using (1) a supported catalyst containing chromium, phosphorus and aluminium, and (2) a cocatalyst comprising an alkyllithium, (1) having been obtained by (1.1) preparing a catalyst precursor containing chromium, phosphorus and aluminium from a silicate support, a selected chromium compound, a selected phosphorus compound and a selected aluminium compound, and then (1.2) heating the catalyst precursor in an oxygen-containing gas stream. It is a characteristic of the process that (1) has been obtained by - in each case specifically in the type and manner - first preparing (1.1) by (1.1.1) preparing a suspension first from (1.1.1.1) a finely divided silicate support and (1.1.1.2) an inert organic solvent, (1.1.2) then combining (1.1.2.1) an organochromium compound in an inert organic solvent (1.1.2.2) with (1.1.2.3) a trialkyl aluminium compound (1.1.3) then combining (1.1.3.1) the suspension resulting from (1.1.1) with (1.1.3.2) a phosphoric or phosphorous acid ester and (1.1.3.3) the product obtained from (1.1.2), finally (1.1.4) evaporating the suspension obtained in (1.1.3) to dryness, and then, secondly, (1.2) first (1.2.1) treating the precursor obtained from (1.1) with a stream of nitrogen, then (1.2.2) heating the intermediate obtained from (1.2.1) in an oxygen-containing gas stream, and (1.2.3) treating the intermediate obtained from (1.2.2) with a stream of nitrogen, and finally (1.3) suspending the product obtained from (1.2.3) in (1.3.1) an organic solvent and then (1.3.2) reacting it with an alkylboron compound, and (2) is an alkyllithium compound.

    56.
    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

    57.
    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

    58.
    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

Patent Agency Ranking