IMPROVED NUCLEATING ADDITIVE FORMULATIONS OF BICYCLO[2.2.1]HEPTANE DICARBOXYLATE SALTS
    1.
    发明申请
    IMPROVED NUCLEATING ADDITIVE FORMULATIONS OF BICYCLO[2.2.1]HEPTANE DICARBOXYLATE SALTS 审中-公开
    改善BICYCLO的添加剂配方[2.2.1]二丙二酸二乙酯盐

    公开(公告)号:WO2005040259A1

    公开(公告)日:2005-05-06

    申请号:PCT/US2004/025071

    申请日:2004-08-04

    IPC分类号: C08K5/098

    CPC分类号: C08K3/36 C08K5/0083 C08K5/098

    摘要: Milled, small particle size, solid bicyclo[2.2.1]heptane dicarboxylate salt-containing thermoplastic nucleating additive formulations further comprising at least one anticaking agent for improved haze reduction, improved nucleation performance, and prevention of potential cementation (via agglomeration) of the salt component present therein are provided. Such small particle size dicarboxylate salts provide desirable properties within thermoplastic articles, particularly as nucleating agents, but apparently suffer from certain clarity issues and agglomeration problems (due to the flat and thin plate structures of such compounds and the propensity they exhibit to cohere to each other during storage), making utilization thereof less desirable for certain applications. Thus, an improvement has been provided to permit full benefit of the excellent crystallization temperatures, stiffness, and calcium stearate compatibility such dicarboxylate salts accord within target low haze thermoplastics. Furthermore, unexpected improvements in dusting reduction have been found upon the utilization of such anticaking additives in combination with the aforementioned nucleating salts. Thermoplastic additive compositions and methods of producing thermoplastics with such nucleator/anticaking additive combinations are also contemplated within this invention.

    摘要翻译: 固体双环[2.2.1]庚烷二羧酸盐的热塑性成核添加剂制剂,其还包含至少一种用于改善雾度降低的抗结块剂,改进的成核性能以及防止盐的潜在胶结(通过附聚) 提供其中存在的组分。 这种小粒度的二羧酸盐在热塑性制品中,特别是作为成核剂提供了期望的性质,但显然存在某些澄清问题和附聚问题(由于这些化合物的平板和薄板结构以及它们彼此凝聚的倾向 在存储期间),使其利用对于某些应用不太理想。 因此,已经提供了一种改进,以使得完全有益于优异的结晶温度,刚度和硬脂酸钙相容性,这样的二羧酸盐符合目标低雾度热塑性塑料。 此外,在将这种防结块添加剂与上述成核盐结合使用时,已经发现除尘减少的意想不到的改进。 在本发明中也考虑了热塑性添加剂组合物和用这种成核剂/抗结块添加剂组合生产热塑性塑料的方法。

    SILICA-CONTAINING NUCLEATING AGENT COMPOSITIONS AND METHODS FOR USING SUCH COMPOSITIONS IN POLYOLEFINS
    2.
    发明申请
    SILICA-CONTAINING NUCLEATING AGENT COMPOSITIONS AND METHODS FOR USING SUCH COMPOSITIONS IN POLYOLEFINS 审中-公开
    含硅的核化剂组合物和在聚烯烃中使用这些组合物的方法

    公开(公告)号:WO2007032797A1

    公开(公告)日:2007-03-22

    申请号:PCT/US2006/022144

    申请日:2006-06-07

    摘要: Diacetals of sorbitols and xylitols are employed in polyolefins as nucleating agents. Diacetals of sorbitols and xylitol nucleating agents may be provided in granular or powder form from hoppers or mixing equipment into polyolefins during the formation of polymeric compositions and polymeric articles. Flow of diacetals of sorbitols and xylitols is improved by the use of certain silicas, in certain defined weight percentages. Submicron size range silica compounds may provide excellent flow enhancement properties when blended and used with such diacetals.

    摘要翻译: 山梨糖醇和木糖醇的二缩醛用作聚烯烃作为成核剂。 山梨糖醇和木糖醇成核剂的二缩醛可以在形成聚合物组合物和聚合物制品期间以颗粒或粉末形式从料斗或混合设备提供到聚烯烃中。 通过使用某些确定的重量百分比的某些二氧化硅,改善了山梨糖醇和木糖醇的二缩醛的流动。 当与这种二缩醛共混并使用时,亚微米尺寸范围的二氧化硅化合物可以提供优异的流动增强性能。