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    METHOD FOR PRODUCING EXPANDED GRANULATE
    13.
    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。

    FOAMS BASED ON THERMOPLASTIC ELASTOMERS
    15.
    发明申请
    FOAMS BASED ON THERMOPLASTIC ELASTOMERS 有权

    公开(公告)号：US20210189088A1

    公开(公告)日：2021-06-24

    申请号：US17048778

    申请日：2019-04-18

    Applicant: BASF SE

    Inventor： Elmar POESELT ,  Peter GUTMANN ,  Florian Tobias RAPP ,  Frank PRISSOK

    IPC: C08J9/18 ,  C08J9/00 ,  C08G18/10 ,  C08G18/76 ,  C08G18/75

    Abstract: The present invention relates to bead foams made of thermoplastic polyurethane and styrene polymer with a modulus of elasticity below 2700 MPa, to moldings produced therefrom, to processes for the production of the bead foams and moldings, and also to the use of the moldings for shoe intermediate soles, shoe insoles, shoe combisoles, cushioning elements for shoes, bicycle saddles, bicycle tires, damping elements, cushioning, mattresses, underlays, grips, protective films, in components in the automobile-interior sector or automobile-exterior sector, balls and sports equipment, or as floorcovering.

    PROCESS FOR PRODUCING EXPANDABLE POLYLACTIC ACID-CONTAINING PELLETS
    18.
    发明申请
    PROCESS FOR PRODUCING EXPANDABLE POLYLACTIC ACID-CONTAINING PELLETS 审中-公开

    公开(公告)号：US20190127545A1

    公开(公告)日：2019-05-02

    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 ,  C08J9/12 ,  C08J9/14 ,  C08J9/00 ,  C08J3/22 ,  C08L67/04

    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.

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