发明授权
US5196549A Polyethers based on 9,9-bis-perfluoroalkyl-3,6-dihydroxy-xanthene or
9-aryl-9-perfluoroalkyl-3,6-dihydroxy-xanthane
失效
基于9,9-双 - 全氟代烷基-3,6-二羟基 - 呫吨或9-芳基-9-全氟代甲基-3,6-二羟基 - 呫吨的聚醚
- 专利标题: Polyethers based on 9,9-bis-perfluoroalkyl-3,6-dihydroxy-xanthene or 9-aryl-9-perfluoroalkyl-3,6-dihydroxy-xanthane
- 专利标题(中): 基于9,9-双 - 全氟代烷基-3,6-二羟基 - 呫吨或9-芳基-9-全氟代甲基-3,6-二羟基 - 呫吨的聚醚
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申请号: US714222申请日: 1991-06-11
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公开(公告)号: US5196549A公开(公告)日: 1993-03-23
- 发明人: Brian C. Auman
- 申请人: Brian C. Auman
- 申请人地址: DE Wilmington
- 专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: C08L71/10
- IPC分类号: C08L71/10 ; C07D311/82 ; C08G65/40 ; C08G75/23 ; C08L71/08 ; H01L21/48 ; H01L23/14
摘要:
Polyethers based on 9,9-bis-perfluoroalkyl-3,6-dihydroxy-xanthene or 9-aryl-9-perfluoroalkyl-3,6-dihydroxy-xanthene and another constituent selected from aryl, sulfone, aryl ketone, benzonitrile, and imide. These polyethers are useful as dielectric films in electronic devices.
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