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    PROPYLENE-BASED COMPOSITIONS OF ENHANCED APPEARANCE AND EXCELLENT MOLD FLOWABILITY
    1.
    发明申请
    PROPYLENE-BASED COMPOSITIONS OF ENHANCED APPEARANCE AND EXCELLENT MOLD FLOWABILITY 审中-公开
    基于丙烯的组合物，增强外观和优异的模具流动性

    公开(公告)号：US20120157599A1

    公开(公告)日：2012-06-21

    申请号：US13328515

    申请日：2011-12-16

    申请人： Antonios K. Doufas ,  Edward Catalina ,  William C. Thurston ,  Rita Majewski

    发明人： Antonios K. Doufas ,  Edward Catalina ,  William C. Thurston ,  Rita Majewski

    IPC分类号： C08L23/16 ,  C08L23/12

    CPC分类号： C08L23/16 ,  C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2314/02

    摘要： The present invention relates to a class of impact copolymer polypropylene (ICP) compositions exhibiting the advantageous combination of excellent tiger (flow) marking performance in large/long molded parts, very low gels count and exceptional mold flowability (high MFR) despite the high viscosity ratio (e.g., >4) between rubber and propylene based matrix phases. The inventive compositions exhibit significantly reduced the levels of volatiles, and excellent stiffness-impact balance used as standalone materials or in filled compounds. The significantly reduced number of large gels leads to excellent surface appearance and paintability of the molded parts. The composition of the present invention is made with a bulk/gas reactor process (i.e., non-slurry/non-solvent process) that has the advantage of process simplicity, process efficiency and simplicity of compositional structure relative to the complexity in structure and process of making of compositions in the prior art.

    摘要翻译： 本发明涉及一类抗冲共聚聚丙烯（ICP）组合物，其表现出在大/长成型部件中优异的老虎（流动）标记性能的有利组合，非常低的凝胶计数和优异的模具流动性（高MFR），尽管高粘度 橡胶和丙烯基体相之间的比例（例如> 4）。 本发明的组合物显示出挥发物的水平显着降低，以及用作独立材料或填充的化合物中的优异的刚度 - 冲击平衡。 大量凝胶的显着减少导致模制件的优异的表面外观和可着色性。 本发明的组合物采用本体/气体反应器方法（即，非浆液/非溶剂方法）制成，其具有工艺简单性，工艺效率和组成结构简单性相对于结构和工艺复杂性的优点 制备现有技术中的组合物。