利索-全球专利检索

  1. 登录
  2. 注册
发明授权
US5607490A Filter having chemical resistance, antistatic property and water vapor resistance, and process for producing the same 失效
具有耐化学性，抗静电性和耐水蒸汽性的过滤器及其制造方法

Filter having chemical resistance, antistatic property and water vapor resistance, and process for producing the same
摘要：
A water vapor resistant filter comprising a permeable molded material, nonwoven fabric or felt comprising polyimide fiber having a repeating unit represented by formula (I) is described. The permeable molded material, nonwoven fabric or felt is covered with a condensed polycyclic polynucleus aromatic resin, a melting fluorine resin, a solvent-soluble cold setting fluorine resin or a fluorine elastomer: ##STR1## X, R and n are defined in the specification. A water vapor resistant antistatic filter is also described, which comprises a permeable molded material, nonwoven fabric or felt comprising polyimide fiber having a repeating unit represented by the above-described formula (I). The permeable molded material, nonwoven fabric or felt is covered with an electroconductive material and a condensed polycyclic polynucleus aromatic resin, a solvent-soluble cold setting fluorine resin or a fluorine elastomer. Processes for producing these filters are also described.
摘要（中）：

描述了一种包含渗透模制材料的防水蒸气过滤器，包含具有由式（I）表示的重复单元的聚酰亚胺纤维的非织造织物或毛毡。 可渗透的成型材料，非织造织物或毛毡被冷凝的多环多核芳香树脂，熔融氟树脂，溶剂可溶的冷固氟树脂或氟弹性体覆盖。定义X，R和n 在规范中。 还描述了一种防水蒸汽抗静电过滤器，其包括可渗透模制材料，非织造织物或毛毡，其包含具有由上述式（I）表示的重复单元的聚酰亚胺纤维。 可渗透成型材料，无纺布或毛毡被导电材料和缩合多环多核芳香树脂，溶剂可溶性冷固氟树脂或氟弹性体覆盖。 还描述了用于生产这些过滤器的方法。

公开/授权文献
信息查询
Global Dossier Espacenet
0/0