PRECERAMIC COMPOSITIONS AND CERAMIC PRODUCTS
Assignee
ETHYL CORPORATION
Filed
Sep 29, 1989
Granted
Apr 13, 1993
Location
BIRMINGHAM MI US
Abstract
Preceramic compositions which have particular utility in providing protective ceramic coatings on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared by dispersing about 0.4-1 part by weight of a metal boride in an organic solvent solution containing one part by weight of an organoborosilazane polymer prepared by mixing about 0.25-20 parts by weight of a trialkoxy-, triaryloxy-, or tri(arylalkoxy)boroxine with a solution of one part by weight of a polysilazane in an organic solvent.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Dec 7, 1990
Rescinded
May 27, 1992
Duration
1 year, 5 months
Inventor
- 1LEONARD M. NIEBYLSKI
Record Details
- Patent number
- US 5201947
- Application
- 07414464
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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