Polyoxymethylene compositions with branched polymers
    4.
    发明授权
    Polyoxymethylene compositions with branched polymers 有权
    具有支链聚合物的聚甲醛组合物

    公开(公告)号:US09109112B2

    公开(公告)日:2015-08-18

    申请号:US13703059

    申请日:2011-06-27

    IPC分类号: C08K9/00 C08L71/02 C08L59/00

    摘要: Polyoxymethylene compositions with polyoxymethylene polymers polymer/polyol additives having a core-link-arm structure. Upon molding, these compositions exhibit stable melt viscosity and simultaneous improvement in notched Izod impact strength and/or decreased relative apparent capillary melt viscosity, and/or increased elongation at break, relative to polyoxymethylene compositions lacking such core-link-arm structure additives.

    摘要翻译: 具有聚甲醛聚合物的聚甲醛组合物具有核心 - 连接臂结构的聚合物/多元醇添加剂。 在成型时,相对于缺乏这种核 - 链 - 臂结构添加剂的聚甲醛组合物,这些组合物显示出稳定的熔体粘度和同时改进的缺口伊佐德冲击强度和/或降低的相对表观毛细管熔融粘度和/或增加的断裂伸长率。

    Polyoxymethylene Polymer Compositions Having Improved Creep
    5.
    发明申请
    Polyoxymethylene Polymer Compositions Having Improved Creep 审中-公开
    具有改善蠕变的聚甲醛聚合物组合物

    公开(公告)号:US20120129976A1

    公开(公告)日:2012-05-24

    申请号:US12954304

    申请日:2010-11-24

    IPC分类号: C08L61/00 C08G16/02

    摘要: Processes of making articles of a melt mixed polyoxymethylene composition comprising polyoxymethylene polymer and polyoxymethylene terpolymer in which the melt mixed composition is maintained above the crystallization temperature of the polyoxymethylene polymer. Such processes impart improved creep resistance compared to that of articles made of the same melt mixed composition but which has been cooled below crystallization temperature of the polyoxymethylene polymer during manufacture. These articles are useful for making plastic gears having high heat resistance.

    摘要翻译: 制备包含聚甲醛聚合物和聚甲醛三元共聚物的熔融混合聚甲醛组合物的制品的方法,其中熔融混合组合物保持在聚甲醛聚合物的结晶温度以上。 与制造相同的熔融混合组合物制成的制品相比,这种方法具有改善的抗蠕变性,但在制造过程中已被冷却到聚甲醛聚合物的结晶温度以下。 这些制品对于制造具有高耐热性的塑料齿轮是有用的。

    Polyoxymethylene blends
    7.
    发明申请
    Polyoxymethylene blends 审中-公开
    聚甲醛共混物

    公开(公告)号:US20080161488A1

    公开(公告)日:2008-07-03

    申请号:US12004182

    申请日:2007-12-19

    IPC分类号: C08L61/00 C08L61/02

    摘要: Disclosed herein are polyoxymethylene blends having excellent fatigue resistance comprising at least one polyoxymethylene homopolymer having a number average molecular weight of at least about 100,000 and at least one polyoxymethylene homopolymer having a number average molecular weight between about 15,000 and about 30,000.

    摘要翻译: 本文公开了具有优异的耐疲劳性的聚甲醛混合物,其包含至少一种数均分子量为至少约100,000的聚甲醛均聚物和至少一种数均分子量在约15,000至约30,000之间的聚甲醛均聚物。

    Polyoxymethylene Compositions with Branched Polymers
    8.
    发明申请
    Polyoxymethylene Compositions with Branched Polymers 有权
    具有支化聚合物的聚甲醛组合物

    公开(公告)号:US20130142978A1

    公开(公告)日:2013-06-06

    申请号:US13703059

    申请日:2011-06-27

    IPC分类号: C08L71/02

    摘要: Polyoxymethylene compositions with polyoxymethylene polymers polymer/polyol additives having a core-link-arm structure. Upon molding, these compositions exhibit stable melt viscosity and simultaneous improvement in notched Izod impact strength and/or decreased relative apparent capillary melt viscosity, and/or increased elongation at break, relative to polyoxymethylene compositions lacking such core-link-arm structure additives.

    摘要翻译: 具有聚甲醛聚合物的聚甲醛组合物具有核心 - 连接臂结构的聚合物/多元醇添加剂。 在成型时,相对于缺乏这种核 - 链 - 臂结构添加剂的聚甲醛组合物,这些组合物显示出稳定的熔体粘度和同时改进的缺口伊佐德冲击强度和/或降低的相对表观毛细管熔融粘度和/或增加的断裂伸长率。

    Obtaining melt viscosity stability of polyoxymethylene compositions
    9.
    发明授权
    Obtaining melt viscosity stability of polyoxymethylene compositions 有权
    获得聚甲醛组合物的熔体粘度稳定性

    公开(公告)号:US08741202B2

    公开(公告)日:2014-06-03

    申请号:US13703066

    申请日:2011-06-27

    IPC分类号: B29C47/00

    摘要: Processes for improving melt flow properties of molten compositions with polyoxymethylene polymers and polymer/polyol additives having a certain core-link-arm structure, which include: obtaining melt viscosity stability while improving notched Izod, decreasing relative apparent capillary melt viscosity, and increasing elongation at break relative to molten compositions of polyoxymethylene polymers without the polymer/polyol additives.

    摘要翻译: 具有一定的核心 - 连接臂结构的聚氧化亚甲基聚合物和聚合物/多元醇添加剂改进熔融组合物的熔体流动性能的方法,其包括:获得熔体粘度稳定性,同时改善缺口伊佐德,降低相对表观毛细管熔融粘度和增加伸长率 相对于没有聚合物/多元醇添加剂的聚甲醛聚合物的熔融组合物断裂。

    Obtaining Melt Viscosity Stability of Polyoxymethylene Compositions
    10.
    发明申请
    Obtaining Melt Viscosity Stability of Polyoxymethylene Compositions 有权
    获得聚甲醛组合物的熔体粘度稳定性

    公开(公告)号:US20130175724A1

    公开(公告)日:2013-07-11

    申请号:US13703066

    申请日:2011-06-27

    IPC分类号: B29C47/00

    摘要: Processes for improving melt flow properties of molten compositions with polyoxymethylene polymers and polymer/polyol additives having a certain core-link-arm structure, which include: obtaining melt viscosity stability while improving notched Izod, decreasing relative apparent capillary melt viscosity, and increasing elongation at break relative to molten compositions of polyoxymethylene polymers without the polymer/polyol additives.

    摘要翻译: 具有一定的核心 - 连接臂结构的聚氧化亚甲基聚合物和聚合物/多元醇添加剂改进熔融组合物的熔体流动性能的方法,其包括:获得熔体粘度稳定性,同时改善缺口伊佐德,降低相对表观毛细管熔融粘度和增加伸长率 相对于没有聚合物/多元醇添加剂的聚甲醛聚合物的熔融组合物断裂。