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1. 发明授权

US06423764B1 Method of producing colored polyester thermoplastic materials through specific solid-state procedures 失效
标题翻译：通过特定固态程序生产有色聚酯热塑性材料的方法
公开(公告)号：US06423764B1
公开(公告)日：2002-07-23
申请号：US09645717
申请日：2000-08-24
申请人： Edward X. Zhao , Todd D. Danielson , Daniel M. Connor , Jason D. Sprinkle
发明人： Edward X. Zhao , Todd D. Danielson , Daniel M. Connor , Jason D. Sprinkle
IPC分类号： C08J322
CPC分类号： C08G63/80 , C08J3/203 , C08J2367/00
摘要： Colored polyester plastics produced through the introduction of coloring agents prior to extrusion but after pellet production of the base polymer are provided. As a result, the plastic is melt-extruded and mixed with the coloring agent and subsequently subjected to solid stating wherein the base polymer is accorded an increase in molecular weight and the coloring agent becomes integrated therein. Such a method permits avoidance of introduction of a coloring agent to the polymerization reaction chamber that results in extensive staining (particularly upon a change of desired colors for the next batch of plastic). Such a method also permits avoidance of the introduction of a coloring agent to an injection molding process that results in uneven color dispersion and sub-optimal physical properties within the ultimate article. The inventive procedure produces colored thermoplastics of substantially the same shades and uniformity as with the aforementioned precoloring or masterbatch process.
摘要翻译：提供通过在挤出之前但是在制备基础聚合物的颗粒之后引入着色剂而生产的着色的聚酯塑料。结果，将塑料熔融挤出并与着色剂混合，随后进行固相，其中基础聚合物的分子量增加，着色剂变得一体化。这种方法允许避免在聚合反应室中引入着色剂，导致广泛的染色（特别是对于下一批塑料的期望颜色的变化）。这种方法还允许避免将引入着色剂引入注射成型工艺中，导致最终制品中颜色分散不均匀和不合适的物理性能。本发明的方法产生与上述预色或母料工艺基本上相同的阴影和均匀性的着色热塑性塑料。

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