ポリヒドロキシアルカン酸の製造方法およびその利用

    公开(公告)号:WO2021251049A1

    公开(公告)日:2021-12-16

    申请号:PCT/JP2021/018084

    申请日:2021-05-12

    摘要: 本発明の目的は、より低い熱風温度で、粒径が大きいPHA(例えば、PHA粉体)を得ることができる製造方法を提供することである。3HB単位/3HH単位の組成比が92/8~100/0であるポリヒドロキシ酪酸共重合体(A)と、3HB単位/3HH単位の組成比が75/25~91/9であるポリヒドロキシ酪酸共重合体(B)とを含む水性懸濁液を噴霧乾燥する工程、および(b)前記工程(a)で調製した水性懸濁液を噴霧乾燥する工程、を含むPHAの製造方法を提供することにより、上記課題を解決する。

    NON-POROUS MICROPARTICLES
    4.
    发明申请

    公开(公告)号:WO2021144061A1

    公开(公告)日:2021-07-22

    申请号:PCT/EP2020/084273

    申请日:2020-12-02

    摘要: The invention relates to microparticles and compositions thereof as each of them is described in the specification. The invention further relates to microparticles obtained by a process as described in the specification, compositions thereof. The invention further relates to cured compositions as well as to objects or kits-of-parts comprising the microparticles of the invention and/or the compositions thereof and/or the cured compositions thereof. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for lowering the gloss of coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making matte coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making soft-touch coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making matte coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making soft-touch matte coatings. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making 3D-printed objects. The invention further relates to the use of the microparticles of the invention and/or the compositions thereof, for making absorbent and superabsorbent objects.

    VERFAHREN UND ANLAGE ZUR HERSTELLUNG VON PET-GRANULAT
    7.
    发明申请
    VERFAHREN UND ANLAGE ZUR HERSTELLUNG VON PET-GRANULAT 审中-公开
    方法和系统PET GRANULAT生产

    公开(公告)号:WO2016012244A1

    公开(公告)日:2016-01-28

    申请号:PCT/EP2015/065631

    申请日:2015-07-08

    IPC分类号: C08G63/88 B29B9/16

    摘要: Verfahren und Anlage zur Herstellung von Polyethylenterephthalat (PET)-Granulat durch Umesterung von Dimethylterephthalat mit Ethylenglycol oder durch Veresterung von (faser-)reiner Terephthalsäure mit Ethylenglycol, geeignet zur Weiterverarbeitung zu Verpackungsfolie und Flaschen, umfassend die Schritte Polykondensation, Granulierung und Latentwärmekristallisation, Nachbehandlung des Rohgranulats zur Einstellung der für die Weiterverarbeitung erforderlichen Polymerqualitätswerte, insbesondere der intrinsischen Viskosität, des Acetaldehyd- und des Feuchtegehaltes, wobei die Nachbehandlung in mehreren, parallel betriebenen Wanderbettrohrreaktoren erfolgt.

    摘要翻译: 用于生产聚对苯二甲酸乙酯(PET)方法和装置,颗粒剂通过与乙二醇或由纯对苯二酸与乙二醇,适合于进一步加工,以包装膜和瓶子,包括缩聚,成粒剂和潜热结晶,后处理的步骤的(纤维)酯化对苯二甲酸二甲酯的酯交换反应 建立所需的用于进一步处理的聚合物的质量值,特别是特性粘度,乙醛和水分含量,其中所述后处理中的多个平行的操作移动床管式反应器中进行原料颗粒。

    CRYSTALLIZED PELLET/LIQUID SEPARATOR
    8.
    发明申请
    CRYSTALLIZED PELLET/LIQUID SEPARATOR 审中-公开
    结晶泡沫/液体分离器

    公开(公告)号:WO2007037968A3

    公开(公告)日:2010-09-02

    申请号:PCT/US2006035364

    申请日:2006-09-13

    申请人: EASTMAN CHEM CO

    摘要: A process and apparatus which reduces the fines in a liquid discharge stream and/or increases the dryness of a solids discharge stream while under a pressure equal to or greater than the vapor pressure of the liquid. There is provided a process for separating particles such as polyethylene terephthalate or polyethylene naphthalate from a liquid in a slurry comprising: a. feeding a slurry comprising solid particles and a liquid into a within a separation zone maintained at a pressure equal to or greater than the vapor pressure of the liquid; b. contacting the slurry in the separation zone with a porous filter, optionally a microfilter, nanofilter, reverse osmosis filter, or ultrafilter, and separating liquid from the particles, wherein the liquid flows through the filter into an outer annulus defined as a space between the wall of the separation device and the filter, and said porous filter optionally having a terminal point beyond which the separated liquid does not pass from the outer annulus back through the filter; c. accumulating no liquid in the outer annulus or accumulating liquid in the outer annulus at a level below or in front of the terminal point, and continuously discharging the separated liquid from the outer annulus through a liquid outlet; d. decoupling the particles from the separation zone through the solids outlet to a low pressure below the vapor pressure of the liquid at the liquid temperature within the separation zone while maintaining a pressure on the particles prior to decoupling at or above the vapor pressure of the liquid within the separation zone.

    摘要翻译: 一种在液体排出流中减少细粉和/或在等于或大于液体的蒸气压的压力下增加固体排出流的干度的方法和装置。 提供了一种用于从浆液中的液体分离颗粒如聚对苯二甲酸乙二醇酯或聚萘二甲酸乙二醇酯的方法,包括:a。 将包含固体颗粒和液体的浆料进料到保持在等于或大于液体的蒸气压的压力的分离区内; 湾 使分离区中的浆料与多孔过滤器,任选的微过滤器,纳米过滤器,反渗透过滤器或超滤器接触,并将液体从颗粒中分离,其中液体流过过滤器,形成外壁,其被定义为壁之间的空间 分离装置和过滤器,并且所述多孔过滤器任选地具有终点,超过该终点,分离的液体不从外环通过过滤器; C。 在外环形空间中没有液体或在外环空中积聚液体在终点下方或前方的水平,并且通过液体出口连续排出来自外环的分离的液体; 天。 在分离区内的液体温度下将来自分离区的颗粒通过固体出口分离成低于液体蒸气压的低压,同时在等于或高于液体的蒸汽压力的去耦之前保持颗粒上的压力, 分离区。