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    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEM GRANULAT
    3.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEM GRANULAT 审中-公开
    用于生产膨胀颗粒

    公开(公告)号：EP2836543A1

    公开(公告)日：2015-02-18

    申请号：EP13720822.9

    申请日：2013-04-12

    申请人： BASF SE

    发明人： RUDOLPH, Hans ,  KLOSTERMANN, Rainer ,  KAMINSKY, Torben ,  LOHAUS, Bernd ,  AHLERS, Jürgen ,  SCHMIED, Bernhard ,  GUTMANN, Peter ,  HAHN, Klaus ,  PRISSOK, Frank ,  MARTEN, Elke ,  DÄSCHLEIN, Christian

    IPC分类号： C08J9/12 ,  C08J9/16 ,  C08G18/66 ,  C08G18/76 ,  C08G18/08

    摘要： The invention relates to a method for producing expanded granules from a propellant-containing polymer melt, comprising the steps: a) pressing the propellant-containing polymer melt through a perforated plate controlled to a temperature between 150°C and 280°C into a granulation chamber; b) comminuting the polymer melt pressed through the temperature-controlled perforated plate into individual expanding granules with a cutting device; c) discharging the granules from the granulation chamber with a fluid stream, wherein the propellant contains CO
    2 or N2 or a combination of CO2 and N2, and a fluid controlled to a temperature between 10°C and 60°C and having a pressure between 0.7 bar and 20 bar above the ambient pressure is caused to flow through the granulation chamber, and wherein the pressure and temperature of the fluid in the granulation chamber as well as the temperature of the perforated plate are selected such that the granules in the fluid under pressure are expanded by the propellant they contain in such a manner that expanded granules with a closed skin are created.

    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN THERMOPLASTISCHEN ELASTOMERPARTIKELN
    10.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN THERMOPLASTISCHEN ELASTOMERPARTIKELN 有权
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN热塑性弹性体弹性体

    公开(公告)号：EP3055353A1

    公开(公告)日：2016-08-17

    申请号：EP14783597.9

    申请日：2014-10-09

    申请人： BASF SE

    发明人： DÄSCHLEIN, Christian ,  GUTMANN, Peter ,  AHLERS, Jürgen

    IPC分类号： C08J9/18 ,  C08J9/12 ,  C08J9/232 ,  C08J9/236 ,  B29C44/34

    CPC分类号： C08J9/18 ,  B29C44/08 ,  B29C44/3415 ,  B29C44/3453 ,  B29C44/3461 ,  B29K2009/06 ,  B29K2019/00 ,  B29K2067/00 ,  B29K2075/00 ,  B29K2077/00 ,  B29K2096/04 ,  B29K2105/0005 ,  B29K2105/048 ,  B29K2105/251 ,  B29K2995/0037 ,  B29K2995/0039 ,  B29K2995/004 ,  B29K2995/0063 ,  B29K2995/007 ,  C08J9/122 ,  C08J9/232 ,  C08J9/236 ,  C08J2201/026 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/182 ,  C08J2205/044 ,  C08J2205/046 ,  C08J2205/052 ,  C08J2300/22 ,  C08J2300/26 ,  C08J2325/10 ,  C08J2353/02 ,  C08J2367/02 ,  C08J2375/06 ,  C08J2375/08 ,  C08J2377/02 ,  C08J2377/04 ,  C08J2377/06

    摘要： Method for producing expanded thermoplastic elastomer particles, wherein thermoplastic elastomer particles are surrounded by a gaseous medium, said method comprising: a) an impregnation step, wherein the gaseous medium is at an impregnation temperature (T
    a ), the absolute pressure of the gaseous medium is greater than ambient pressure, and wherein a blowing agent is dissolved in the thermoplastic elastomer particles, b) an expansion step, wherein the thermoplastic elastomer particles are exposed to a pressure reduction at a first expansion temperature (T
    b ) and expand, and c) optionally, a welding step, wherein the expanded thermoplastic elastomer particles are welded to one another at a welding temperature (T
    c ) to form at least one shaped part, and wherein the thermoplastic elastomer particles are composed of amorphous thermoplastic elastomer or partially crystalline thermoplastic elastomer or mixtures thereof, the impregnation temperature (T
    a ), the first expansion temperature (T
    b ) and the welding temperature (T
    c ) depend on the type of thermoplastic elastomer, and i) if the thermoplastic elastomer is amorphous, are higher than a first limit temperature (T
    G-40 ), wherein the first limit temperature (T
    G-40 ) is 40 °C below the glass transition temperature (T
    G ) according to DIN EN ISO 11357-2:2013-09 of the non-impregnated thermoplastic elastomer particles, ii) if the thermoplastic elastomer is partially crystalline, are higher than the glass transition temperature (T
    G ) according to DIN EN ISO 11357-2:2013-09 of the non-impregnated thermoplastic elastomer particles and are lower than a second limit temperature (T
    S-5 ) which is 5 °C below the melting temperature (T
    S ) according to DIN EN ISO 11357-3:2013-04 of the non-impregnated thermoplastic elastomer particles.

    摘要翻译： 一种生产膨胀热塑性弹性体颗粒的方法，其中热塑性弹性体颗粒被气体介质包围，所述方法包括：a）浸渍步骤，其中气体介质处于浸渍温度（Ta），气体介质的绝对压力为 大于环境压力，并且其中发泡剂溶解在热塑性弹性体颗粒中，b）膨胀步骤，其中热塑性弹性体颗粒在第一膨胀温度（Tb）下暴露于减压并膨胀，以及c）任选地 ，焊接步骤，其中所述发泡热塑性弹性体颗粒在焊接温度（Tc）彼此焊接以形成至少一个成形部件，并且其中所述热塑性弹性体颗粒由无定形热塑性弹性体或部分结晶的热塑性弹性体或混合物 浸渍温度（Ta），第一膨胀温度（Tb）和 焊接温度（Tc）取决于热塑性弹性体的种类，i）如果热塑性弹性体是无定形的，高于第一极限温度（TG-40），其中第一极限温度（TG-40）为40° C低于非浸渍热塑性弹性体颗粒的DIN EN ISO 11357-2：2013-09的玻璃化转变温度（TG），ii）如果热塑性弹性体是部分结晶的，则高于玻璃化转变温度（TG） 根据DIN EN ISO 11357-2：2013-09的非浸渍热塑性弹性体颗粒，并且低于根据DIN EN ISO的熔点温度（TS）低5℃的第二极限温度（TS-5） 11357-3：2013-04的非浸渍热塑性弹性体颗粒。