Clear Polypropylene Composition for Thermoforming

    公开(公告)号:US20210403694A1

    公开(公告)日:2021-12-30

    申请号:US17363127

    申请日:2021-06-30

    摘要: Disclosed is a polymeric composition containing at least 95 wt. % of a polypropylene copolymer; and 50 ppm to 2000 ppm of an aryl amide containing clarifying agent or a phosphate ester salt containing clarifying agent or a combination thereof, wherein the polymeric composition has a haze value of A after being extruded once and a haze value of B after being extruded 5 times, wherein the ratio of A to B is 1 to 1.35 and A is less than 25%, and wherein A and B are determined in accordance with ASTM D1003, at a thickness of about 40 mil, methods of making the polymeric composition and articles containing the polymeric composition.

    Articles having improved clarity, prepared from propylene-ethylene copolymers

    公开(公告)号:US10428166B2

    公开(公告)日:2019-10-01

    申请号:US14986089

    申请日:2015-12-31

    摘要: Molded articles are prepared from propylene-ethylene copolymers and exhibiting improved clarity and strength properties. Articles prepared include bottles and other thin-walled articles. The articles are prepared using an isotactic propylene-ethylene random copolymer resin having an ethylene content of from about 0.5 to about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 1.5 percent. The injection molded article may exhibit less than about 20 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm). Articles may also be prepared from similar copolymers having an ethylene content greater than about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 4 percent by total weight of copolymer. These articles may exhibit less than about 13 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm).

    PELLETS OF LIGHTLY VIS-BROKEN POLYPROPYLENE
    4.
    发明申请
    PELLETS OF LIGHTLY VIS-BROKEN POLYPROPYLENE 审中-公开
    轻质VIS-BROKEN聚丙烯薄膜

    公开(公告)号:US20170051118A1

    公开(公告)日:2017-02-23

    申请号:US14832350

    申请日:2015-08-21

    IPC分类号: C08J5/00 C08F110/06 C08J3/24

    摘要: A process including vis-breaking of polypropylene in the presence of 3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxonane to obtain vis-broken polypropylene is provided. The vis-broken polypropylene may be pelletized to obtain pellets. A ratio of a melt flow rate (MI2) of the pellets to a melt flow rate (MI2) of the polypropylene prior to the vis-breaking may be greater than 1:1 and at most 4:1. The pellets may be used to form articles.

    摘要翻译: 提供了一种包括在3,6,9-三乙基-3,6,9-三甲基-1,4,7-三过氧苯甲酸存在下的聚丙烯的断裂以获得可折断的聚丙烯的方法。 可以将可见光聚丙烯造粒以获得颗粒。 颗粒之间的熔体流动速率(MI2)与破坏前的聚丙烯的熔体流动速率(MI2)之比可以大于1:1,最多为4:1。 颗粒可用于形成制品。

    Articles having improved clarity, prepared from propylene-ethylene copolymers

    公开(公告)号:US11155657B2

    公开(公告)日:2021-10-26

    申请号:US16547347

    申请日:2019-08-21

    摘要: Molded articles are prepared from propylene-ethylene copolymers and exhibiting improved clarity and strength properties. Articles prepared include bottles and other thin-walled articles. The articles are prepared using an isotactic propylene-ethylene random copolymer resin having an ethylene content of from about 0.5 to about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 1.5 percent. The injection molded article may exhibit less than about 20 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm). Articles may also be prepared from similar copolymers having an ethylene content greater than about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 4 percent by total weight of copolymer. These articles may exhibit less than about 13 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm).

    Polymer foams
    7.
    发明授权
    Polymer foams 有权
    聚合物泡沫

    公开(公告)号:US09505906B1

    公开(公告)日:2016-11-29

    申请号:US14601399

    申请日:2015-01-21

    摘要: A polymer composition may include polyolefin having a molecular weight distribution of greater than or equal to 8 as measured by GPC and a metallic acrylate salt. The polymer composition may be characterized by one or more of: a melt flow rate of from 0.1 g/10 min to 10 g/10 min; a melt flow viscosity between 2,000 Pa·s and 6,000 Pa·s; a die swell of between 2 and 8; and a die swell characteristic time of between 0.3 seconds and 1.2 seconds. The polymer composition may be in the form of foam. A process of forming foam may include supplying polymer composition including metallic acrylate salt and polyolefin resin, and mixing the polymer composition with foaming agent. A foam may include a polymer composition that includes polyolefin and polar polymer and does not include an ionomer. The foam may have a foam density of less than 0.25 g/cc.

    摘要翻译: 聚合物组合物可以包括通过GPC测量的分子量分布大于或等于8的聚烯烃和金属丙烯酸盐。 聚合物组合物的特征可以包括以下的一种或多种:熔体流动速率为0.1g / 10min至10g / 10min; 熔体流动粘度在2,000Pa·s至6,000Pa·s之间; 2到8之间的肿胀; 并且模具膨胀特征时间在0.3秒和1.2秒之间。 聚合物组合物可以是泡沫的形式。 形成泡沫的方法可以包括提供包括金属丙烯酸盐和聚烯烃树脂的聚合物组合物,并将聚合物组合物与发泡剂混合。 泡沫可以包括聚合物组合物,其包括聚烯烃和极性聚合物,并且不包括离聚物。 泡沫的泡沫密度可以小于0.25g / cc。

    Articles Having Improved Clarity, Prepared from Propylene-Ethylene Copolymers
    8.
    发明申请
    Articles Having Improved Clarity, Prepared from Propylene-Ethylene Copolymers 审中-公开
    具有改进的澄清度的文章,由丙烯 - 乙烯共聚物制备

    公开(公告)号:US20160115282A1

    公开(公告)日:2016-04-28

    申请号:US14986089

    申请日:2015-12-31

    IPC分类号: C08J5/00 C08F210/16

    摘要: Molded articles are prepared from propylene-ethylene copolymers and exhibiting improved clarity and strength properties. Articles prepared include bottles and other thin-walled articles. The articles are prepared using an isotactic propylene-ethylene random copolymer resin having an ethylene content of from about 0.5 to about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 1.5 percent. The injection molded article may exhibit less than about 20 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm). Articles may also be prepared from similar copolymers having an ethylene content greater than about 3 percent by total weight of copolymer, with a xylene solubles content of less than about 4 percent by total weight of copolymer. These articles may exhibit less than about 13 percent haze, as determined by ASTM D1003, at a thickness of about 0.08 inch (2.03 mm).

    摘要翻译: 模制品由丙烯 - 乙烯共聚物制备,并具有改进的透明度和强度性能。 制作的文章包括瓶子和其他薄壁物品。 制品使用全同立构丙烯 - 乙烯无规共聚物树脂制备,其乙烯含量为共聚物总重量的约0.5至约3%,二甲苯可溶物含量低于约1.5%。 注射成型制品可以表现出小于约20%的雾度,如ASTM D1003所测定,厚度约为0.08英寸(2.03mm)。 制品也可以由共聚物的总重量大于约3%的乙烯含量的类似共聚物制备,二甲苯可溶物含量低于共聚物总重量的约4%。 根据ASTM D1003测定,这些制品的厚度可以低于约13%,厚度约为0.08英寸(2.03mm)。