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    • 8. 发明申请
    • MULTI-MODAL POLYISOOLEFIN COMPOSITIONS AND PROCESSES THEREFOR
    • 多模聚烯烃醚组合物及其加工方法
    • WO2018058245A1
    • 2018-04-05
    • PCT/CA2017/051149
    • 2017-09-28
    • ARLANXEO CANADA INC.
    • GUO, SharonDAVIDSON, Gregory J. E.BINDER, Brianna
    • C08L23/22C08F2/00
    • A polyisoolefin-based polymer composition having a multimodal molecular weight distribution is described, which can be prepared by the late addition of a chain transfer agent to the polymerization process. The polymer composition has a low molecular weight fraction having a peak molecular weight (M p ) of less than about 100,000 g/mol and a high molecular weight fraction having a peak molecular weight (M p ) of greater than about 250,000 g/mol, the low molecular weight fraction present in the composition in an amount less than the high molecular weight fraction. Cured articles produced from the polyisoolefin-based polymer composition exhibit improved processability while maintaining physical properties.
    • 描述了具有多峰分子量分布的基于聚异烯烃的聚合物组合物,其可以通过向聚合过程延迟加入链转移剂来制备。 该聚合物组合物具有峰分子量(M p /)小于约100,000g / mol的低分子量部分和峰分子量(M p )大于约250,000g / mol,存在于组合物中的低分子量组分的量低于高分子量组分。 由聚异烯烃基聚合物组合物生产的固化制品表现出改进的加工性能,同时保持物理性能。