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    24.
    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

    Inventor： LUX MARTIN DR ,  FUNK GUIDO DR ,  SAIVE ROLAND DR ,  GOERTZ HANS-HELMUT DR ,  KONRAD RAINER DR

    IPC: C09K3/16 ,  C08F2/34 ,  C08F2/44 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08K5/17 ,  C08K5/20 ,  C08L23/02

    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

    25.
    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

    Inventor： LUX MARTIN DR ,  FUNK GUIDO DR ,  SAIVE ROLAND DR ,  GOERTZ HANS-HELMUT DR ,  KONRAD RAINER DR

    IPC: C09K3/16 ,  C08F2/34 ,  C08F2/44 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08K5/17 ,  C08K5/20 ,  C08L23/02

    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

    27.
    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

    Inventor： LUX MARTIN DR ,  FUNK GUIDO DR ,  SAIVE ROLAND DR ,  GOERTZ HANS-HELMUT DR ,  KONRAD RAINER DR

    IPC: C09K3/16 ,  C08F2/34 ,  C08F2/44 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08K5/17 ,  C08K5/20 ,  C08L23/02

    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

    30.
    发明专利
    未知

    公开(公告)号：DE59001946D1

    公开(公告)日：1993-08-19

    申请号：DE59001946

    申请日：1990-04-30

    Applicant: BASF AG

    Inventor： BAUER PETER ,  KONRAD RAINER DR ,  MORGENSTERN HERBERT ,  SCHUCH HORST DR

    IPC: B29C47/00 ,  B29C47/60 ,  B29C47/62 ,  B29C47/82 ,  B29C47/86 ,  B29C48/395 ,  B29K23/00 ,  B29C47/38

    Abstract: For producing extrudates from ultra-high molecular weight polyethylene, the cooled feed zone of a single-screw extruder is charged with particulate to powdered polyethylene, which is compressed, melted in a conveying zone of the extruder and discharged with the extrudate being moulded into shape and cooled. In this method, the polyethylene is worked in the conveying zone with a shear rate in the radial clearance between screw shaft and extruder barrel of 50 to 1000 sec , is heated to a temperature of 180 to 280 DEG C and is subsequently transferred into a zone without any screw shaft, in which the final moulding of the extrudate takes place.

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