会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Method for forming exfoliated clay-polyolefin nanocomposites
    • 形成剥离粘土 - 聚烯烃纳米复合材料的方法
    • US07776943B2
    • 2010-08-17
    • US11451199
    • 2006-06-12
    • Susannah ScottBrian PeoplesRene' RojasAkio TannaFumihiko Shimizu
    • Susannah ScottBrian PeoplesRene' RojasAkio TannaFumihiko Shimizu
    • C08K3/36C08J3/22
    • C08F10/00B82Y30/00C08F4/659C08F4/65912C08F10/02C08F110/02C08F210/00C08F210/16C08J3/226C08J5/005C08J2323/06C08J2323/12C08J2323/18C08J2423/12C08F4/80C08F2/44C08F4/65916C08F4/025C08F2500/03C08F2500/07C08F210/14
    • A method for forming a nanocomposite by olefin polymerization in which at least one cation-exchanging layered load material, selected from the group consisting of cation-exchanging, layered inorganic silicates and cation-exchanging, layered compounds other than silicates, is treated with acid to disrupt its layered structure and is combined with a catalyst that becomes activated for olefin polymerization when in contact with the acid-treated filler. An olefin is contacted by the activated catalyst—filler combination either (a) in the absence of an alkylaluminum co-catalyst or (b) with an alkylaluminum co-catalyst when the activatable catalyst is a polyalkylmetal compound, to form a nanocomposite containing polyolefin and the acid-treated filler. In a particular embodiment, sufficient filler is used to constitute at least 30 weight % of the nanocomposite to prepare a highly loaded nanocomposite masterbatch. A predetermined amount of one or more olefinic polymers can then be blended with the masterbatch to obtain a nanocomposite having a desired amount of loading. The filler is preferably clay, exemplified by montmorillonite. The catalyst is preferably a non-metallocene catalyst, most preferably a nickel complex bearing an α-iminocarboxamidato ligand.
    • 一种通过烯烃聚合形成纳米复合材料的方法,其中将至少一种选自阳离子交换,层状无机硅酸盐和阳离子交换的阳离子交换层状负载材料,除硅酸盐以外的层状化合物,用酸处理 破坏其层状结构,并与与酸处理填料接触时用于烯烃聚合活化的催化剂组合。 活化的催化剂 - 填料组合物(a)在不存在烷基铝助催化剂的情况下或(b)与烷基铝助催化剂(当可活化催化剂为多烷基金属化合物)时,使活化的催化剂 - 填料组合物接触,形成含聚烯烃的纳米复合材料, 酸处理填料。 在一个具体实施方案中,使用足够的填料来构成至少30重量%的纳米复合材料,以制备高度负载的纳米复合母料。 然后可以将预定量的一种或多种烯烃聚合物与母料混合以获得具有所需量的负载量的纳米复合材料。 填料优选为粘土,例如蒙脱石。 催化剂优选为非金属茂催化剂,最优选为带有α-亚氨基羧酰胺基配体的镍络合物。