公开(公告)号：EP2627687A1

公开(公告)日：2013-08-21

申请号：EP11831268.5

申请日：2011-09-27

申请人： Arkema, Inc.

发明人： BERTELO, Christopher A. ,  GARCIA-LEINER, Manuel A. ,  DECARMINE, Anthony ,  DEFELICE, Scott F.

IPC分类号： C08G14/00

CPC分类号： C08L61/16 ,  B29B15/00 ,  B29C39/08 ,  B29C64/153 ,  B29K2071/00 ,  B29K2995/004 ,  B33Y10/00 ,  B33Y70/00 ,  C08G8/02 ,  C08G2650/40 ,  C08L71/00 ,  C08L2205/025

摘要： The invention relates to heat treatment of polymorphic semicrystalline or crystallizable polymers to increase the content of the highest melting crystalline form. Such heat treatment results in a polymer powder that has a consistent, uniform melting range, improved flow and improved durability of the powder particle size for applications that require powder flow at elevated temperatures. In addition to improved powder properties, the articles produced from the powders also exhibit better physical properties in both appearance and in mechanical properties. Thus the invention also includes polymer powders and articles produced by the described processes.

摘要翻译： 本发明涉及多晶型半结晶或可结晶聚合物的热处理，以增加最高熔点晶体形式的含量。 这种热处理导致聚合物粉末具有一致的，均匀的熔融范围，改善的流动性和改善的粉末粒度的耐久性，用于在高温下需要粉末流动的应用。 除了改善的粉末性能之外，由粉末制造的制品在外观和机械性能方面也表现出更好的物理性能。 因此，本发明还包括通过所述方法制备的聚合物粉末和制品。