Research/Patents/US 5354506
US 5354506

PRECERAMIC COMPOSITIONS AND CERAMIC PRODUCTS

Assignee

ETHYL CORPORATION

Filed

Sep 28, 1989

Granted

Oct 11, 1994

Location

BIRMINGHAM MI US

Abstract

Preceramic polymers which have particular utility in providing protective ceramic coatings on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared by reacting about 0.2-5.0 part by weight of a bis- or tris(dialkylamino)borane with one part by weight of a polysilazane in an organic solvent.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 22, 1990

Rescinded

Dec 1, 1992

Duration

2 years, 8 months

Inventor

  • 1LEONARD M. NIEBYLSKI
Back to patent indexSource: USPTO 35 USC §181 secrecy order records