Polyborosilazane and process for producing same
US5030744A · kind A · utility
23Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Jan 18, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G79/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.