Clean containers
    4.
    发明授权
    Clean containers 失效
    清洁容器

    公开(公告)号:US6051671A

    公开(公告)日:2000-04-18

    申请号:US47810

    申请日:1998-03-24

    CPC分类号: C08L23/04 C08K5/005

    摘要: The present invention provides containers for chemicals which require a high purity, such as chemicals for use in manufacturing computer chips and pharmaceuticals. Such containers should not contaminate the contents due to extraction or other phenomena. The present invention provides a container having a low metals content and a low hydrogen peroxide extractables.

    摘要翻译: 本发明提供了需要高纯度的化学品的容器,例如用于制造计算机芯片和药物的化学品。 这种容器不应该由于提取或其他现象而污染内容物。 本发明提供一种具有低金属含量和低过氧化氢可萃取物的容器。

    Melt fracture reduction
    5.
    发明授权
    Melt fracture reduction 失效
    熔体断裂减少

    公开(公告)号:US5854352A

    公开(公告)日:1998-12-29

    申请号:US803319

    申请日:1997-02-21

    摘要: The extrusion of thermoplastic polyolefin, especially linear low density polyethylene (LLDPE) is improved by the use of a processing additive comprising a blend of a thermoplastic acrylic polymer and a fluorocarbon polymer. In a preferred embodiment, the processing additive is a homogeneous blend of a thermoplastic styrene/methyl methacrylate polymer and a thermoplastic copolymer of vinylidene fluoride and hexafluoropropylene. The polyolefin extrudates produced according to this invention have reduced levels of melt fracture when extruded in conventional polymer extrusion equipment.

    摘要翻译: 热塑性聚烯烃,特别是线性低密度聚乙烯(LLDPE)的挤出通过使用包含热塑性丙烯酸类聚合物和氟碳聚合物的共混物的加工添加剂来改进。 在优选的实施方案中,加工添加剂是热塑性苯乙烯/甲基丙烯酸甲酯聚合物和偏二氟乙烯和六氟丙烯的热塑性共聚物的均匀共混物。 根据本发明生产的聚烯烃挤出物在常规聚合物挤出设备中挤出时具有降低的熔体断裂水平。

    Stabilized rotomolded parts
    7.
    发明申请
    Stabilized rotomolded parts 审中-公开
    稳定的滚塑部件

    公开(公告)号:US20100187726A1

    公开(公告)日:2010-07-29

    申请号:US12657163

    申请日:2010-01-14

    IPC分类号: B29C41/04

    摘要: Easy processing rotomolding resins which have a high melt index, I2, (as measured by ASTM D 1238) of from 2 to 10 (especially 3 to 8) grams/10 minutes and a narrow molecular weight distribution, Mw/Mn, of from 2.0 to 3.0 are difficult to stabilize with correctional additive packages. The present invention resolves this problem by the use of from 500 to 5000 parts per million by weight (ppm) of zinc oxide, in addition to a standard stabilizer additive package.

    摘要翻译: 具有2至10(特别是3至8)克/ 10分钟的具有高熔体指数I 2(通过ASTM D 1238测量)的易加工滚塑树脂和窄分子量分布Mw / Mn为2.0 至3.0难以用校正添加剂包装稳定。 本发明除了标准的稳定剂添加剂包之外,通过使用500至5000份(重量百分比)(ppm)的氧化锌来解决该问题。

    Method for reducing dusting in hdpe
    8.
    发明申请
    Method for reducing dusting in hdpe 审中-公开
    减少hdpe粉尘的方法

    公开(公告)号:US20060246309A1

    公开(公告)日:2006-11-02

    申请号:US11403461

    申请日:2006-04-13

    IPC分类号: C08K3/34 B32B27/32

    摘要: High density polyethylene (hdpe) containing from 500 to 20,000 ppm of talc is used to prepare barrier film which is resistant to water vapor transmission. The addition of talc reduces the formation of “dust” (i.e. abraded polyethylene particles) during the manufacture of packages from the barrier film. Preferred talc has a particle size of less than 10 microns.

    摘要翻译: 使用含有500〜20000ppm滑石粉的高密度聚乙烯(hdpe)来制备耐水蒸汽透过性的阻隔膜。 在阻挡膜制造包装过程中,滑石的添加减少了“灰尘”(即磨损的聚乙烯颗粒)的形成。 优选的滑石具有小于10微米的粒度。