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    21.
    发明专利
    未知

    公开(公告)号：DE19500756A1

    公开(公告)日：1996-07-18

    申请号：DE19500756

    申请日：1995-01-13

    Applicant: BASF AG

    Inventor： WARZELHAN VOLKER DR ,  KRONER MATTHIAS DR ,  HOFMANN JUERGEN ,  SEELIGER URSULA DR ,  YAMAMOTO MOTONORI ,  BAUER PETER

    IPC: A01G9/10 ,  B65D65/46 ,  C08G69/40 ,  C08G69/44 ,  C08G69/48 ,  C08G73/04 ,  C08J9/00 ,  C08L3/02 ,  C08L77/12 ,  C08L101/16 ,  C09J177/12 ,  C08G81/00 ,  C08G69/42 ,  C08G63/685 ,  C08K5/09 ,  C08L67/04 ,  G09F3/00

    Abstract: The invention concerns biologically degradable polyester amides Q1 obtainable through reaction of a mixture consisting essentially of the following: (a1) 95-99.9 wt % polyester amide P1 obtainable through reaction of a mixture consisting essentially of: (b1) a mixture consisting essentially of: 35-95 mol % adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-65 mol % terephthalic acid or ester-forming derivatives thereof or mixtures thereof; and 0-5 mol % a compound containing sulphonate groups (the sum of the molar percentages is 100); (b2) a mixture of dihydroxy compounds consisting essentially of: (b21) 99.5-0.5 mol % a dihydroxy compound chosen from the group comprising C2-C6 alkane diols and C5-C10 cycloalkane diols, (b22) 0.5-99.5 mol % an amino C2-C12 alkanol or an amino C5-C10 cycloalkanol, (b23) 0-50 mol a diamino C1-C8 alkane, and (b24) 0-50 mol % a 2,2'-bisoxazoline; (a2) 0.1-5 wt % a divinyl ether C1; and (a3) 0-5 mol % (in relation to components b1 from the production of P1) compound D. The invention also concerns other biologically degradable polymers and thermoplastic moulding materials, a process for manufacturing the same and the use thereof for producing biologically degradable moulded articles and adhesives, and biologically degradable moulded articles obtainable from the polymers or moulding materials according to the invention.

    26.
    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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