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    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN POLYESTER-SCHAUMSTOFFPARTIKELN
    5.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN POLYESTER-SCHAUMSTOFFPARTIKELN 有权

    公开(公告)号：EP3055352A1

    公开(公告)日：2016-08-17

    申请号：EP14780809.1

    申请日：2014-09-29

    申请人： BASF SE

    发明人： KEPPELER, Uwe

    IPC分类号： C08J9/18 ,  C08J9/12 ,  C08J9/14 ,  C08J9/232 ,  C08J9/236 ,  B29C44/34

    CPC分类号： 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

    摘要： The invention relates to a process for the production of expanded foam beads made of pellets comprising a polyester mixture composed of: • a) from 50 to 99% by weight, based on components a and b, of a biodegradable polyester based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic diols, and • b) from 1 to 50% by weight, based on components a and b, of polylactic acid, comprising the following steps: • (i) production of a suspension comprising pellets of the polyester mixture in a suspension medium, • (ii) impregnation of the pellets comprised in the suspension from step (i) with at least one physical or chemical blowing agent, in order to obtain blowing-agent-loaded pellets in suspension, by heating the mixture to the depressurization temperature IMT, with stirring, and • (iii) after expiry of a retention time, depressurization of the suspension obtained in step (ii), in order to obtain expanded foam beads, which comprises proceeding in an aqueous suspension medium, adding the blowing agent in step (i) or in step (ii) during the heating phase or immediately after the heating phase and, in step (ii), after heating, keeping the suspension for from 3 to 100 minutes at a temperature in the range from IMT minus 5°C to IMT plus 2°C. The invention further relates to expanded foam beads obtainable by said process, and also to the production of moldings from said foam beads.

    摘要翻译： 本发明涉及生产由粒料制成的膨胀泡沫珠粒的方法，所述粒料包含由以下组分组成的聚酯混合物：·a）基于组分a和b计50至99重量％的基于脂肪族或脂肪族的生物可降解聚酯 和芳族二羧酸和脂族二醇，和·b）基于组分a和b，1-50重量％的聚乳酸，其包括以下步骤：·（i）生产包含聚酯混合物粒料 在悬浮介质中，（ii）用至少一种物理或化学发泡剂浸渍来自步骤（i）的悬浮液中包含的粒料，以获得悬浮液中装载有发泡剂的粒料，通过将混合物加热至 （iii）在保留时间结束后，对步骤（ii）中获得的悬浮液进行减压，以获得膨胀的泡沫珠，其包括在含水悬浮液 （i）或步骤（ii）中，在加热阶段或紧接着加热阶段之后添加发泡剂，并且在步骤（ii）中，在加热之后，将悬浮液保持在3分钟至100分钟 温度范围从IMT减5°C到IMT加2°C。 本发明还涉及通过所述方法可获得的膨胀泡沫珠粒，并且还涉及由所述泡沫珠粒生产模制品。

    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN POLYESTER-SCHAUMSTOFFPARTIKELN
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON EXPANDIERTEN POLYESTER-SCHAUMSTOFFPARTIKELN 有权

    公开(公告)号：EP3055351A1

    公开(公告)日：2016-08-17

    申请号：EP14777081.2

    申请日：2014-09-29

    申请人： BASF SE

    发明人： KEPPELER, Uwe

    IPC分类号： C08J9/18 ,  C08J9/12 ,  C08J9/14 ,  C08J9/232 ,  C08J9/236 ,  B29C44/34

    CPC分类号： 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

    摘要： The invention relates to a method for producing expanded foam particles from a granular material, which contains at least one biodegradable polyester, which can be obtained from the following by polycondensation: A1) 40 to 60 mol%, with respect to components A1) to A2), of a succinic acid, adipic acid, azelaic acid, sebacic acid, brassylic acid, or the respective ester-forming derivatives of said acids or mixtures thereof, A2) 40 to 60 mol%, with respect to components A1 to A2), of a terephthalic acid or the ester-forming derivative thereof, B) 98.5 to 100 mol%, with respect to components A1) to A2), of 1,4-butanediol or 1,3-propanediol or mixtures thereof; and C) 0.05 to 1.5 wt%, with respect to components A1) to A2) and B), of a compound or of a plurality of compounds selected from the group comprising: C1) a compound having at least three groups capable of ester formation, C2) a di- or polyfunctional isocyanate, C3) a di- or polyfunctional epoxide; comprising the following steps: (i) producing a suspension containing a granular material in a suspending medium, (ii) impregnating the granular material contained in the suspension from step (i) with at least one physical blowing agent in order to obtain a blowing-agent-laden granular material in suspension, by heating up the mixture to the relaxation temperature IMT while the mixture is stirred, and (iii) relaxing the suspension obtained in step (ii) after the expiration of a holding time and cooling the relaxed suspension by means of a liquid aqueous coolant in order to obtain expanded foam particles, characterized in that the method is performed in a suspending medium containing water, the blowing agent is added in step (i) or in step (ii) during the heat-up phase or immediately after the heat-up phase, and in step (ii) the suspension is held at a temperature in the range of IMT minus 5°C to IMT plus 2°C for 3 to 100 minutes after the heat-up, and the quantity ratio of coolant to suspending medium is at least 0.3. The invention further relates to expanded foam particles that can be obtained in accordance with said method and to the production of molded parts made of said foam particles.

    摘要翻译： 一种用于生产膨胀泡沫珠粒的方法，其由包含聚酯混合物的丸粒制备，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 ，二羧酸和脂肪族二醇，和b）基于聚乳酸的组分a和b的1至50重量％，所述方法包括以下步骤：（i）提供聚酯颗粒的水性悬浮液， ii）将步骤（i）的悬浮液中的颗粒与至少一种物理或化学发泡剂一起浸渍以提供悬浮液中的负载泡沫剂的颗粒，其中所述至少一种发泡剂的浸渍包括将混合物加热至减压 并且（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，并且在加热步骤（ii）之后，将悬浮液保持在 在IMT减5摄氏度至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，以及从膨胀的泡沫珠生产模制品。

    METHOD OF IMPREGNATING AND PURIFYING POLYLACTIC ACID RESIN
    9.
    发明公开
    METHOD OF IMPREGNATING AND PURIFYING POLYLACTIC ACID RESIN 有权
    VERFAHREN ZURIMPRÄGNIERUNGREINIGUNG EINESPOLYMILCHSÄUREHARZES

    公开(公告)号：EP2712366A4

    公开(公告)日：2015-08-05

    申请号：EP12768239

    申请日：2012-03-27

    申请人： SIOX MACHINES AB

    发明人： MARCUSSON ANDERS ,  KARTHÄUSER JOACHIM ,  HAMREFORS JAN

    IPC分类号： C08G63/90 ,  B01D11/02 ,  C08G63/08 ,  C08G63/88 ,  C08G101/00 ,  C08J9/12 ,  C08J9/18 ,  C08J9/40

    CPC分类号： B01D11/0296 ,  A61L9/042 ,  B01D11/0203 ,  C08G63/90 ,  C08J9/122 ,  C08J9/18 ,  C08J9/224 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2300/16 ,  C08J2367/04

    摘要： A method of impregnating and purifying polylactic acid (PLA), wherein PLA resin beads are subjected to a liquid C02treatment, which involves impregnation and extraction comprising at least one impregnation and extraction step, in which the PLA resin beads are brought into contact with 0,01 -1000 kg pure liquid C02 /kg PLA in a reactor for a predetermined time period, at a temperature and pressure that prevents the beads from sticking together and foaming, and - a portion of the liquid C02 is drained from the PLA beads after completion of the impregnation and extraction step, at a temperature that prevents the beads from sticking together and foaming, and at which the C02 is in liquid form, while leaving at least 0,01 kg liquid C02/kg PLA, preferably 0,01-1 kg liquid C02/kg PLA in the reactor containing the PLA resin beads, followed by evacuation of C02 gas from the reactor so as to decrease the pressure to ambient pressure, whereby the remaining liquid C02 is evaporated, thereby decreasing the temperature so as to prevent foaming at ambient pressure.

    摘要翻译： 一种浸渍和净化聚乳酸（PLA）的方法，其中对PLA树脂珠进行液体CO 2处理，其包括浸渍和提取，其包括至少一个浸渍和提取步骤，其中PLA树脂珠与0接触， 01-1000kg纯液体CO 2 / kg PLA在反应器中预定的时间段，在防止珠子粘在一起并起泡的温度和压力下，和 - 一部分液体CO 2在完成后从PLA珠排出 的浸渍和萃取步骤，在防止珠子粘在一起并发泡的温度下，并且在其中CO 2为液体形式的温度下，同时留下至少0.01kg液体CO 2 / kg PLA，优选为0.01-1 kg PLA溶液中，然后从反应器中排出CO 2气体，以将压力降至环境压力，由此蒸发剩余的液体CO 2，从而减少 记录温度以防止在环境压力下发泡。