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    PROCESS FOR THE PRODUCTION OF EXPANDED POLYESTER FOAM BEADS
    1.
    发明申请
    PROCESS FOR THE PRODUCTION OF EXPANDED POLYESTER FOAM BEADS 审中-公开
    生产膨胀聚酯泡沫珠的方法

    公开(公告)号：US20160244583A1

    公开(公告)日：2016-08-25

    申请号：US15027803

    申请日：2014-09-29

    Applicant: BASF SE

    Inventor： Uwe KEPPELER

    IPC: C08J9/18 ,  C08J9/12 ,  C08J9/00 ,  C08J9/14

    CPC classification number: C08J9/18 ,  B29C44/3453 ,  B29C44/3461 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/141 ,  C08J9/228 ,  C08J9/232 ,  C08J9/236 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/052 ,  C08J2300/16 ,  C08J2367/02 ,  C08J2467/04

    Abstract: A process for the production of expanded foam beads that are prepared from pellets comprising polyester mixture comprising a) from 50 to 99% by weight, based on components a and b, of a biodegradable polyester based on aliphatic, or a mixture of aliphatic and aromatic,dicarboxylic acids and an aliphatic diol, and b) from 1 to 50% by weight, based on components a and b, of polylactic acid, the process comprising the following steps: (i) providing an aqueous suspension of the polyester pellets, (ii) impregnating the pellets in the suspension of step (i) with at least one physical or chemical blowing agent to provide blowing-agent-loaded pellets in suspension, wherein the impregnation of the at least one blowing agent includes heating the mixture to a depressurization temperature IMT with stirring, and (iii) depressurizing the suspension obtained in step (ii) to provide the expanded foam beads. The at least one blowing agent is added to the suspension in step (i), or in step (ii) during the heating phase, or immediately after the heating phase, and following the heating of step (ii), the suspension is maintained at a temperature in the range from IMT minus 5° C. to IMT plus 2° C. for a period of 3 to 100 minutes. The invention further relates to expanded foam beads obtained by the process, and to the production of moldings from the expanded foam beads.

    Abstract translation: 一种用于生产由包含聚酯混合物的颗粒制成的膨胀泡沫珠粒的方法，其包含a）基于脂肪族的可生物降解的聚酯的基于组分a和b的50至99重量％，或脂族和芳族的混合物 ，二羧酸和脂族二醇，和b）基于聚乳酸的组分a和b的1-50重量％，所述方法包括以下步骤：（i）提供聚酯颗粒的水悬浮液， ii）用至少一种物理或化学发泡剂将步骤（i）的悬浮液中的颗粒浸渍到悬浮液中以提供负载泡沫剂的颗粒，其中至少一种发泡剂的浸渍包括将混合物加热至减压 温度IMT，和（iii）将步骤（ii）中获得的悬浮液减压以提供发泡泡珠。 在加热阶段或加热阶段之后，将至少一种发泡剂加入到步骤（i）或步骤（ii）中的悬浮液中，或在加热步骤（ii）之后，将悬浮液保持在 在IMT减5℃至IMT加2℃范围内的温度，持续3至100分钟。 本发明还涉及通过该方法获得的膨胀泡沫珠粒和从膨胀的泡沫珠粒制备模制品。

    MEMORY FOAM BASED ON THERMOPLASTIC POLYURETHANE
    3.
    发明申请
    MEMORY FOAM BASED ON THERMOPLASTIC POLYURETHANE 审中-公开

    公开(公告)号：US20180086871A1

    公开(公告)日：2018-03-29

    申请号：US15561747

    申请日：2016-03-23

    Applicant: BASF SE

    Inventor： Stefan BOKERN ,  Frank PRISSOK ,  Sebastian HARTWIG ,  Elmar POESELT ,  Julia GOESCHEL ,  Uwe KEPPELER

    IPC: C08G18/32 ,  C08G18/48 ,  C08J9/228

    CPC classification number: C08G18/3215 ,  C08G18/4879 ,  C08G2280/00 ,  C08J9/228

    Abstract: The present invention relates to a process for producing a molding (FK), comprising the production of a thermoplastic polyurethane, comprising the reaction of at least one polyisocyanate composition, at least one chain extender, and at least one polyol composition, the production of a molding (FK*) from the thermoplastic polyurethane, the heating of the molding (FK*) to a temperature below the temperature at which the molding (FK*) is permanently deformable, and above the switching temperature of the thermoplastic polyurethane, the compressing of the heated molding (FK*) to give a molding (FK), and the cooling of the molding (FK) to a temperature below the switching temperature of the thermoplastic polyurethane, and also to the moldings obtainable or obtained by such a process.

    METHOD FOR PRODUCING EXPANDED GRANULATE
    5.
    发明申请
    METHOD FOR PRODUCING EXPANDED GRANULATE 审中-公开
    生产膨化颗粒的方法

    公开(公告)号：US20160121524A1

    公开(公告)日：2016-05-05

    申请号：US14897746

    申请日：2014-06-11

    Applicant: BASF SE

    Inventor： Christian DÄSCHLEIN ,  Peter GUTMANN ,  Frank PRISSOK ,  Uwe KEPPELER ,  Jürgen AHLERS

    IPC: B29C44/34 ,  B29B9/14 ,  C08J9/16 ,  B29B9/06

    CPC classification number: B29C44/3461 ,  B29B7/88 ,  B29B7/90 ,  B29B9/06 ,  B29B9/065 ,  B29B9/12 ,  B29B9/14 ,  B29C44/04 ,  B29C47/0011 ,  B29C47/0014 ,  B29C47/86 ,  B29K2021/003 ,  B29K2077/00 ,  B29K2105/0085 ,  B29K2105/16 ,  B29K2995/007 ,  B29K2995/0082 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/16 ,  C08J9/34 ,  C08J2201/03 ,  C08J2203/06 ,  C08J2300/22 ,  C08J2300/26 ,  C08J2377/06

    Abstract: The invention relates to a process for production of expanded pellets from a thermoplastic elastomer having an elongation at break of more than 100% measured to DIN EN 150 527-2, said process comprising the steps of: (a) pressing a polymer melt comprising a blowing agent through a perforated disk (18) controlled to a temperature between 150° C. and 280° C. and into a pelletizing chamber (26), (b) using a cutting device (20) to comminute the polymer melt pressed through the perforated disk (18) into individual expanding pellets, (c) discharging the pellets from the pelletizing chamber (26) using a liquid stream (36), wherein the blowing agent comprises CO2 or N2 or a combination of CO2 and N2 and the amount of blowing agent in the polymer melt comprising a blowing agent lies in the range from 0.5 to 2.5 wt % and wherein the pelletizing chamber (26) is traversed by a stream of liquid which is controlled to a temperature between 5° C. and 90° C. and the pressure of which is from 0.1 bar to 20 bar above ambient pressure, the pressure and temperature for the liquid in the pelletizing chamber (26) and also the temperature for the perforated disk (18) being chosen such that the pellets are expanded in the pressurized liquid by the blowing agent they contain so as to produce expanded pellets having an uninterrupted skin.

    Abstract translation: 本发明涉及从根据DIN EN 150 527-2测量的断裂伸长率大于100％的热塑性弹性体生产发泡颗粒的方法，所述方法包括以下步骤：（a）将包含 发泡剂通过控制在150℃和280℃之间的温度的多孔盘（18）进入造粒室（26），（b）使用切割装置（20）粉碎通过 （18）分成单独的膨胀颗粒，（c）使用液体流（36）从造粒室（26）排出颗粒，其中发泡剂包括CO 2或N 2或CO 2和N 2的组合， 包含发泡剂的聚合物熔体中的发泡剂在0.5至2.5重量％的范围内，并且其中造粒室（26）通过被控制在5℃和90℃之间的温度的液流 ，其压力为0.1b 在高于环境压力的情况下，选择造粒室（26）中的液体的压力和温度以及多孔板（18）的温度，使得颗粒在加压液体中由发泡剂膨胀， 包含以产生具有不间断皮肤的发泡颗粒。

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