发明授权
US4939222A Boron/nitrogen preceramic polymers and boron nitride ceramic materials
produced therefrom
失效
硼/氮预陶瓷聚合物和由其制备的氮化硼陶瓷材料
- 专利标题: Boron/nitrogen preceramic polymers and boron nitride ceramic materials produced therefrom
- 专利标题(中): 硼/氮预陶瓷聚合物和由其制备的氮化硼陶瓷材料
-
申请号: US242907申请日: 1988-09-12
-
公开(公告)号: US4939222A公开(公告)日: 1990-07-03
- 发明人: Gerard Mignani , Jean-Jacques Lebrun
- 申请人: Gerard Mignani , Jean-Jacques Lebrun
- 申请人地址: FRX Courbevoie
- 专利权人: Rhone-Poulenc Chimie
- 当前专利权人: Rhone-Poulenc Chimie
- 当前专利权人地址: FRX Courbevoie
- 优先权: FRX8712587 19870911
- 主分类号: C04B35/583
- IPC分类号: C04B35/583 ; C04B35/622 ; C08G79/00 ; C08G79/08 ; D01F9/10
摘要:
Crosslinked boron/nitrogen preceramic polymers are prepared by reacting (a) admixture of a trihalogenoborane A and a compound B containing at least one dihalogenated boron atom, with (b) an amino compound C containing at least one --NH.sub.2 group; the resulting polymers are facilely pyrolyzed into boron nitride ceramic materials.
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