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    TEMPERATURE-CONTROLLED RADIATION TRANSMISSIBLE MATERIAL
    1.
    发明专利
    TEMPERATURE-CONTROLLED RADIATION TRANSMISSIBLE MATERIAL 失效

    公开(公告)号：JP2000117862A

    公开(公告)日：2000-04-25

    申请号：JP12487199

    申请日：1999-04-30

    Applicant: BASF AG

    Inventor： KLEINKE ANDREAS ,  KESSLER THOMAS ,  JAHNS EKKEHARD

    IPC: E04B1/74 ,  B32B3/18 ,  C09K9/02 ,  E06B9/24 ,  F24J2/40 ,  G02F1/01 ,  G05D23/00

    Abstract: PROBLEM TO BE SOLVED: To improve the self-adhesive force of a multicomponent film by allowing a temperature-controlled radiation transmissible material for the multicomponent film to be present in a single layer or plural layers entirely encircled by a transparent crystal layer. SOLUTION: The temperature-controlled radiation transmissible material for a multicomponent film is present in a single layer or plural layers entirely encircled by a transparent crustal layer. A core material to be used is selected from thermally oriented polymers and the components of the polymer blend show a lower critical separation temperature which is known to be generated when it is the case with a polymer blend indicating an interference of a middle scale due to a mechanism such as salt formation, hydrogen bonding, complexing, p-electronic interference or amphoteric ionic interference. The thermally oriented polymer blend and a crustal polymer are supplied to a die suited for manufacturing a composite compound film, in a molten state, passing through an extruding machine. The core has a circular section when it is in the simplest form.

    Continuous preparation process of low-molecular polyamides
    6.
    发明专利
    Continuous preparation process of low-molecular polyamides 未知

    公开(公告)号：CZ287624B6

    公开(公告)日：2001-01-17

    申请号：CZ342995

    申请日：1994-06-20

    Applicant: BASF AG

    Inventor： PIPPER GUNTER ,  KLEINKE ANDREAS ,  HILDENBRAND PETER

    IPC: C08G69/14 ,  B01J19/28 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

    Abstract: In the present invention there is disclosed a continuous preparation process of low-molecular polyamides from a mixture of at least one lactam and water and optionally other monomeric units and/or usual admixtures and filling agents employed in conditions of polyamide preparation, whereby the mixture of starting compounds is heated in liquid phase in reaction zone in the presence of 0.5 to 7 percent by weight water at a temperature ranging from 220 to 310 degC and polymerization is carried out until reaction of at least 85 percent is completed and in a second reaction zone polymerization is continued after release of pressure at a temperature ranging from 215 to 300 degC without further supply of heat.

    7.
    发明专利
    未知

    公开(公告)号：DE19855459A1

    公开(公告)日：2000-06-08

    申请号：DE19855459

    申请日：1998-12-01

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  HOFMANN JUERGEN ,  LUDWIG ALEXANDER ,  HEINEN HARTMUT ,  EHRMANN GERD ,  BARGHOORN PETER ,  KLEINKE ANDREAS

    IPC: B29B15/04 ,  B29C47/00 ,  B29C48/67 ,  C08F6/22 ,  C08J3/16

    Abstract: The invention relates to the essentially salt-free coagulation of plastic or rubber dispersions using shearing forces. A device with at least one shearing element (3) is used to this end. Said device has a stator (7) and a rotor (9) which is arranged inside said stator, the surfaces of the stator and the rotor that point towards each other each being flat. Alternatively, at least the rotor has a structure which is configured on its surface and which points in the direction of the stator from said surface. A gap (11) with a predetermined gap width is configured between the stator and the rotor. The method is carried out in such a way that the dispersion to be coagulated is guided through the gap (11) between the stator (7) and the rotor (9) and precipitated through the rotation of the rotor at a predetermined shear speed and with a predetermined shear deformation.

    METHOD OF CONTINUOUSLY OBTAINING LOW-MOLECULE POLYAMIDES
    8.
    发明专利
    METHOD OF CONTINUOUSLY OBTAINING LOW-MOLECULE POLYAMIDES 未知

    公开(公告)号：PL177545B1

    公开(公告)日：1999-12-31

    申请号：PL31229794

    申请日：1994-06-20

    Applicant: BASF AG

    Inventor： PIPPER GUNTER ,  KLEINKE ANDREAS ,  HILDENBRAND PETER

    IPC: C08G69/14 ,  B01J19/28 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

    Abstract: PCT No. PCT/EP94/01998 Sec. 371 Date Dec. 28, 1995 Sec. 102(e) Date Dec. 28, 1995 PCT Filed Jun. 20, 1994 PCT Pub. No. WO95/01389 PCT Pub. Date Jan. 12, 1995A process for the continuous production of polyamides from a mixture of at least one lactam and water and, if required, other monomer units and/or conventional additives and fillers under polyamide-forming conditions, where the mixture of the starting materials is heated in liquid phase in a first reaction zone until a conversion of at least 70% is reached, and undergoes adiabatic decompression and further polymerization in another reaction zone, wherein, in the first reaction zone, 0.5-7% by weight of water are employed, the temperature is increased to the range from 220 DEG to 310 DEG C., and polymerization is carried out until a conversion of at least 85% is reached and, in the second reaction zone, after the decompression further polymerization is carried out in the range from 215 DEG to 300 DEG C. without heat input.

    10.
    发明专利
    未知

    公开(公告)号：DE59407928D1

    公开(公告)日：1999-04-15

    申请号：DE59407928

    申请日：1994-06-20

    Applicant: BASF AG

    Inventor： PIPPER GUNTER ,  KLEINKE ANDREAS ,  HILDENBRAND PETER

    IPC: C08G69/14 ,  B01J19/28 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

    Abstract: PCT No. PCT/EP94/01998 Sec. 371 Date Dec. 28, 1995 Sec. 102(e) Date Dec. 28, 1995 PCT Filed Jun. 20, 1994 PCT Pub. No. WO95/01389 PCT Pub. Date Jan. 12, 1995A process for the continuous production of polyamides from a mixture of at least one lactam and water and, if required, other monomer units and/or conventional additives and fillers under polyamide-forming conditions, where the mixture of the starting materials is heated in liquid phase in a first reaction zone until a conversion of at least 70% is reached, and undergoes adiabatic decompression and further polymerization in another reaction zone, wherein, in the first reaction zone, 0.5-7% by weight of water are employed, the temperature is increased to the range from 220 DEG to 310 DEG C., and polymerization is carried out until a conversion of at least 85% is reached and, in the second reaction zone, after the decompression further polymerization is carried out in the range from 215 DEG to 300 DEG C. without heat input.

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