公开(公告)号：US07244291B2

公开(公告)日：2007-07-17

申请号：US11119877

申请日：2005-05-02

申请人： Gerald R. Spartz ,  Seth M. Kirk ,  Marvin E. Jones ,  Hyacinth L. Cabibil ,  Alan D. Rousseau ,  Steven J. Pachuta

发明人： Gerald R. Spartz ,  Seth M. Kirk ,  Marvin E. Jones ,  Hyacinth L. Cabibil ,  Alan D. Rousseau ,  Steven J. Pachuta

IPC分类号： B03C3/28

CPC分类号： B01D39/1623 ,  H01G7/023 ,  Y10S55/33 ,  Y10S55/35 ,  Y10S55/39 ,  Y10T442/2189 ,  Y10T442/2238

摘要： An electret article that includes a polymeric material that has electric charge imparted thereto, that has a CF3:CF2 ratio of at least 0.15 and that has a fluorosaturation ratio greater than about 200. The electret article may be in the form of a porous web of polymeric fibers suitable for use as a filter. The inventive electret article is resistant to charge degradation upon exposure to high temperatures for prolonged time periods.

摘要翻译： 一种驻极体制品，其包含具有赋予电荷的聚合物材料，其具有至少0.15的CF 3/3 CF 2 - 比率，并且其含氟比例大于 约200个。驻极体制品可以是适合用作过滤器的聚合物纤维的多孔网的形式。 本发明的驻极体制品在长时间暴露于高温下可抵抗电荷降解。