Polyborosilazane and process for producing same

Details Polyborosilazane and process for producing same Polyborosilazane and process for producing same

1990-01-18

1991-07-09

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556403, 528 12, 528 30, C07F 502, C07F 505, C07F 708, C08G 7706

Patent

active

050307444

ABSTRACT:
Disclosed is a polyborosilazane having a B/Si atomic ratio of 0.01 to 3 and a number-average molecular weight of about 200 to about 500,000 which can be pyrolyzed to give ceramics. The polyborosilazane is produced by reacting a polysilazane having a number-average molecular weight of about 100 to about 50,000 with a boron compound.

REFERENCES:
patent: 4581968 (1986-04-01), Paciorek et al.
patent: 4707556 (1987-11-01), Paciorek et al.
patent: 4906763 (1990-03-01), Paciorek et al.

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