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    Process for producing expandable polylactic acid-containing pellets
    1.
    发明授权
    Process for producing expandable polylactic acid-containing pellets 有权

    公开(公告)号：US10787554B2

    公开(公告)日：2020-09-29

    申请号：US16306755

    申请日：2017-06-01

    Applicant: BASF SE

    Inventor： Bangaru Dharmapuri Sriramulu Sampath ,  Jerome Lohmann ,  Peter Gutmann

    IPC: C08J9/16 ,  C08J9/00 ,  C08J9/12 ,  C08L67/04 ,  C08J9/14 ,  C08J3/22 ,  C08K3/04 ,  C08K3/22 ,  C08K5/00

    Abstract: The invention relates to a process for the preparation of expandable polylactic-acid-containing pellets, comprising the steps of a) Melting and incorporation by mixing of the following components: i) from 65 to 95% by weight, based on the total weight of components i to iii, of polylactic acid, where the polylactic acid consists of: ia) from 65 to 95% by weight of polylactic acid with content of from 0.3 to 5% of D-lactic acid and ib) from 5 to 35% by weight of polylactic acid with content of from 10 to 18% of D-lactic acid; ii) from 5 to 35% by weight, based on the total weight of components i to iii, of an aliphatic polyester selected from the group consisting of polybutylene succinate, polybutylene succinate-co-adipate and polybutylene succinate-co-sebacate; iii) from 0 to 2% by weight, based on the total weight of components i to iii, of a compatibilizer; iv) from 0.1 to 5% by weight, based on the total weight of components i to iii, of an additive, b) incorporation by mixing of v) from 1 to 7% by weight, based on the total weight of components i to v, of an organic blowing agent and vi) from 0.01 to 5% by weight of a co-blowing agent—selected from the group of nitrogen, carbon dioxide, argon, helium and mixtures thereof—  into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharge through a die plate with perforations, the diameter of which at the die outlet is at most 1.5 mm, and d) underwater pelletization of the blowing-agent-containing melt directly downstream of the die plate at a pressure in the range from 1 to 21 bar.

    PROCESS FOR PRODUCING EXPANDABLE PELLETIZED MATERIAL WHICH COMPRISES POLYLACTIC ACID
    2.
    发明申请
    PROCESS FOR PRODUCING EXPANDABLE PELLETIZED MATERIAL WHICH COMPRISES POLYLACTIC ACID 审中-公开
    生产包含聚酸的可膨胀助剂的方法

    公开(公告)号：US20130345327A1

    公开(公告)日：2013-12-26

    申请号：US13926252

    申请日：2013-06-25

    Applicant: BASF SE

    Inventor： Jerome Lohmann ,  Bangaru Dharmapuri Sriramulu Sampath ,  Peter Gutmann ,  Andreas Künkel ,  Klaus Hahn ,  Andreas FüßI

    IPC: C08J9/16

    CPC classification number: C08J9/16 ,  C08J2367/04 ,  C08J2467/00

    Abstract: The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 61.9 to 98.9% by weight, based on the total weight of components i to iv, of polylactic acid, ii) from 1 to 38% by weight, based on the total weight of components i to iv, of at least one polyhydroxyalkanoate, iii) from 0 to 30% by weight, based on the total weight of components i to iv, of at least one polyester based on aliphatic and/or aromatic dicarboxylic acids and on aliphatic dihydroxy compounds; iv) from 0.1 to 2% by weight, based on the total weight of components i to iv, of a copolymer which comprises epoxy groups and which is based on styrene, acrylate, and/or methacrylate, and v) from 0 to 10% by weight, based on the total weight of components i to v, of one or more additives, b) incorporation by mixing of vi) from 3 to 7% by weight, based on the components i to v) of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 30 bar.

    Abstract translation: 本发明涉及一种生产可膨胀颗粒材料的方法，该方法包括聚乳酸，其包括以下步骤：a）通过混合以下组分熔融和掺入：i）基于组分的总重量计，61.9至98.9重量％ i至iv，聚乳酸，ii）基于组分i至iv的至少一种聚羟基链烷酸酯的总重量为1至38重量％，iii）0至30重量％，基于总重量 的组分i至iv，至少一种基于脂族和/或芳族二羧酸的聚酯和脂族二羟基化合物; iv）基于组分i至iv的包含环氧基并且基于苯乙烯，丙烯酸酯和/或甲基丙烯酸酯的共聚物的总重量的0.1至2重量％，和v）0至10重量％ 基于组分i至v的一种或多种添加剂的总重量，b）通过将vi）3至7重量％的混合，基于有机发泡剂的组分i至v）掺入到 聚合物通过静态或动态混合器在至少140℃的温度下熔融，c）通过具有孔的模板排出，其中在模具出口处的直径为至多1.5mm，d ）将包含发泡剂的熔体直接在模板的下游和在水下，在1至30巴的压力下造粒。

    Biodegradable polyester mixture
    3.
    发明授权
    Biodegradable polyester mixture 有权

    公开(公告)号：US10526461B2

    公开(公告)日：2020-01-07

    申请号：US14441233

    申请日：2013-11-08

    Applicant: BASF SE

    Inventor： Xin Yang ,  Jörg Auffermann ,  Carsten Sinkel ,  Jerome Lohmann ,  Robert Loos ,  Gabriel Skupin ,  Andreas Künkel ,  Lars Börger

    IPC: C08J5/18 ,  C08L67/02 ,  C08K3/26 ,  C08K3/34 ,  C08L67/04 ,  C08K3/013

    Abstract: The invention relates to a biodegradable polyester mixture comprising: i) 71 to 91 wt %, based on the total weight of components i and ii, of a polyester I constructed from: a-1) 40 to 70 wt %, based on the total weight of components a and b, of an aliphatic C9-C16 dicarboxylic acid or of a C9-C16 dicarboxylic acid derivative; b-1) 30 to 60 wt %, based on the total weight of components a and b, of terephthalic acid or of a terephthalic acid derivative; c-1) 98 to 100 wt %, based on the total weight of components a and b, of a C3-C6 diol; d-1) 0 to 2 wt %, based on the total weight of components a and b, of an at least trihydric alcohol; e-1) 0 to 2 wt %, based on the total weight of components a to e, of a chain extender, and ii) 9 to 29 wt %, based on the total weight of components i and ii, of a polyester II constructed from: a-2) 40 to 70 wt %, based on the total weight of components a and b, of an aliphatic C4-C6 dicarboxylic acid or of a C4-C6 dicarboxylic acid derivative; b-2) 30 to 60 wt %, based on the total weight of components a and b, of terephthalic acid or of a terephthalic acid derivative; c-2) 98 to 100 wt %, based on the total weight of components a and b, of a C3-C6 diol; d-2) 0 to 2 wt %, based on the total weight of components a and b, of an at least trihydric alcohol; e-2) 0 to 2 wt %, based on the total weight of components a to e, of a chain extender.

    BIODEGRADABLE POLYESTER MIXTURE
    6.
    发明申请
    BIODEGRADABLE POLYESTER MIXTURE 有权
    可生物降解聚酯混合物

    公开(公告)号：US20140134363A1

    公开(公告)日：2014-05-15

    申请号：US14074772

    申请日：2013-11-08

    Applicant: BASF SE

    Inventor： Xin Yang ,  Jörg Auffermann ,  Carsten Sinkel ,  Jerome Lohmann ,  Robert Loos ,  Gabriel Skupin ,  Andreas Künkel ,  Lars Börger

    IPC: C08L67/03

    CPC classification number: C08L67/02 ,  B29C65/00 ,  B29D22/00 ,  B29D23/00 ,  B32B1/08 ,  C08G63/00 ,  C08J5/18 ,  C08K3/00 ,  C08K3/26 ,  C08K3/34 ,  C08L67/00 ,  C08L67/03 ,  Y10T428/1345 ,  Y10T428/1397 ,  Y10T428/24314 ,  Y10T428/249921 ,  Y10T442/10 ,  Y10T442/3171 ,  Y10T442/642

    Abstract: Disclosed is a biodegradable polyester mixture comprising 45 to 95 wt %, based on the total weight of polyester I and II, of a polyester I constructed from an aliphatic C9-C18 dicarboxylic acid or a C9-C18 dicarboxylic acid derivative; terephthalic acid or a terephthalic acid derivative; a C3-C6 diol; an at least trihydric alcohol; and a chain extender. The biodegradable polyester mixture further comprises 5 to 55 wt %, based on the total weight of polyester I and II, of a polyester II constructed from an aliphatic C4-C6 dicarboxylic acid or a C4-C6 dicarboxylic acid derivative; terephthalic acid or a terephthalic acid derivative; a C3-C6 diol; an at least trihydric alcohol; and a chain extender. The biodegradable polyester mixture further comprises 10 to 25 wt %, based on the total weight, of calcium carbonate; and 3 to 15 wt %, based on the total weight, of talc.

    Abstract translation: 公开了一种可生物降解的聚酯混合物，其包含基于聚酯I和II的总重量的45至95重量％的由脂族C 9 -C 18二羧酸或C 9 -C 18二羧酸衍生物构成的聚酯I; 对苯二甲酸或对苯二甲酸衍生物; C3-C6二醇; 至少三元醇; 和扩链剂。 基于聚酯I和II的总重量，可生物降解的聚酯混合物还包含5至55重量％的由脂族C 4 -C 6二羧酸或C 4 -C 6二羧酸衍生物构成的聚酯II; 对苯二甲酸或对苯二甲酸衍生物; C3-C6二醇; 至少三元醇; 和扩链剂。 可生物降解的聚酯混合物还包含基于总重量的10至25重量％的碳酸钙; 和基于总重量的3至15重量％的滑石。

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