发明授权
- 专利标题： Method for manufacturing a hafnium-containing silazane polymer and a method for manufacturing a ceramic from said polymer
- 专利标题（中）： 制备含铪硅烷聚合物的方法和从固体聚合物制造陶瓷的方法
-
申请号： US630063申请日： 1990-12-19
-
公开(公告)号： US5183875A公开(公告)日： 1993-02-02
- 发明人: Yoshihumi Takeda , Akira Hayashida
- 申请人： Yoshihumi Takeda , Akira Hayashida
- 申请人地址： JPX Tokyo
- 专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-330108 19891220
- 主分类号： C04B35/571
- IPC分类号： C04B35/571 ; C04B35/589 ; C08G77/48 ; C08G77/60 ; D01F9/10
摘要：
A hafnium-containing silazane polymer is obtained through a polymerization reaction of which the reactants are(A) a halide of an organic silicon compound;(B) a hafnium compound having a the formula:HfX.sub.4 [I] wherein X is chlorine or bromine, and(C) a disilazane having the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and are hydrogen, methyl ethyl, phenyl or vinyl.