发明授权
- 专利标题： Boron nitride preceramic polymers
- 专利标题（中）： 氮化硼预陶瓷聚合物
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申请号： US120335申请日： 1987-11-13
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公开(公告)号： US4906763A公开(公告)日： 1990-03-06
- 发明人: Kazimiera J. L. Paciorek , Reinhold H. Kratzer , David H. Harris , Wilfried Krone-Schmidt
- 申请人： Kazimiera J. L. Paciorek , Reinhold H. Kratzer , David H. Harris , Wilfried Krone-Schmidt
- 专利权人： Paciorek Kazimiera J L,Kratzer Reinhold H,Harris David H,Krone Schmidt Wilfried
- 当前专利权人： Paciorek Kazimiera J L,Kratzer Reinhold H,Harris David H,Krone Schmidt Wilfried
- 主分类号： C07F7/02
- IPC分类号： C07F7/02 ; C01B21/064 ; C04B35/583 ; C04B35/622 ; C07F7/10 ; C08G79/08 ; C23C18/12 ; D01F9/10
摘要：
A preceramic substituted borazine polymer of the formula: ##STR1## wherein R is methyl, ethyl, propyl, or butyl, and x is a positive integer. Also disclosed are methods for making the polymer, methods for converting the polymer into coatings, shaped articles, articles including fibers and filaments formed from the polymer, blends of the foregoing polymer and preceramic triamino-N-tris (trialkylsilyl) borazines, and methods for thermally decomposing the foregoing polymers to form shaped articles of boron nitride.
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