Method to estimate pent values
    10.
    发明授权
    Method to estimate pent values 失效
    估计pent值的方法

    公开(公告)号:US07816488B2

    公开(公告)日:2010-10-19

    申请号:US12150569

    申请日:2008-04-29

    CPC分类号: G01N25/4866 G01N33/442

    摘要: The PENT value for a resin may be estimated within ±10% by determining the % of heat flow to melt a fraction of a polymer above or below a set point and comparing it to a graph or algorithm of PENT values related to the % of heat flow to melt entire sample for a number of resins made using the same catalyst system. In a similar manner one may estimate the process conditions to prepare a polymer having a target PENT value based on the conditions used to prepare the samples for the graph or algorithms. The invention provides a simple procedure that may be used at a manufacturing site to estimate PENT values.

    摘要翻译: 树脂的PENT值可以通过确定高于或低于设定点熔化聚合物的一部分的热流的百分比来估计±10%,并将其与与热的%相关的PENT值的图或算法进行比较 流动以使整个样品熔化一些使用相同催化剂体系制备的树脂。 以类似的方式,可以基于用于制备用于图或算法的样品的条件来估计制备具有目标PENT值的聚合物的工艺条件。 本发明提供了可以在制造现场用于估计PENT值的简单过程。