Title:
PRECERMIC POLYMER
Document Type and Number:
Japanese Patent JPH03221531
Kind Code:
A
Abstract:
PURPOSE: To provide a preceramic polymer specified in the mol ratio of an organosilicon polymer repeating unit and borane and useful for forming an organosilicon-boron polymer generating borosilicate nitride ceramic.
CONSTITUTION: The objective polymer with a mol ratio of component A repeating unit/component B of 15 or less is obtained by reacting an organosilicon oligomer or polymer (A) containing a plurality of Si-H or Si-N functional groups and borane (B) for a time sufficient to form the preceramic polymer. The component A is org. polysilazane and the reaction is pref. performed in an org. solvent.
Inventors:
DEIITOMAA SEIFUAASU
HERUBERUTO PIRENIO
HERUBERUTO PIRENIO
Application Number:
JP27760290A
Publication Date:
September 30, 1991
Filing Date:
October 16, 1990
Export Citation:
Assignee:
MASSACHUSETTS INST TECHNOLOGY
International Classes:
C04B35/571; C04B35/589; C08G77/48; C08G77/60; C08G77/62; C08G79/00; C08G79/08; C08L83/16; (IPC1-7): C04B35/56; C04B35/58; C08G77/62; C08G79/08
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)