公开(公告)号：US20060287471A1

公开(公告)日：2006-12-21

申请号：US11154146

申请日：2005-06-16

申请人： Benjamin Schreiber ,  Eric Olsen ,  Steven Stafford ,  Jack Hensley ,  Donald Ellison

发明人： Benjamin Schreiber ,  Eric Olsen ,  Steven Stafford ,  Jack Hensley ,  Donald Ellison

IPC分类号： C08G63/02

CPC分类号： C08G63/88 ,  G01N33/442

摘要： An acetaldehyde screening method is developed by feeding solid polymer sample particles having a free acetaldehyde (“AA”) content of 2 ppm or less, melting at least a portion of the sample particles to obtain a polymer sample having a heat history, and thereafter measuring the amount of acetaldehyde present in the polymer sample having the heat history. There is also provided a screening method in which the quantity of free or residual AA in or on a polymer sample is measured to obtain a first value AAf, the sample is melted, and thereafter the amount of AA generated upon remelting the polymer is measured to obtain a second value AAg.

摘要翻译： 通过将具有2ppm或更低的游离乙醛（“AA”）含量的固体聚合物样品颗粒进料到熔融至少一部分样品颗粒以获得具有热历史的聚合物样品，然后测量 存在于具有热历史的聚合物样品中的乙醛的量。 还提供了一种筛选方法，其中测量聚合物样品中或其上的游离或残留AA的量以获得第一值AAf，样品熔化，然后将聚合物重熔后产生的AA的量测量为 获得第二个值AAg。