US 5288444
CONTROLLED RESISTIVITY CERAMIC FIBERS AND PROCESS FOR MAKING THEM
Assignee
HOECST CELANESE CORPORATION, A CORP. OF DE
Filed
Apr 17, 1987
Granted
Feb 22, 1994
Location
COLONIA NJ US
Abstract
Ceramic fibers formed by the pyrolysis of organosilicon preceramic polymers are provided with increased resistivity by treating the fibers in air at temperatures of less than 1,000° C. to oxidize the free carbon content of the fibers.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 23, 1987
Rescinded
Jul 13, 1993
Duration
5 years, 7 months
Inventor
- 1HARRIS A. GOLDBERG
Record Details
- Patent number
- US 5288444
- Application
- 07039256
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
HOECST CELANESE CORPORATION, A CORP. OF DEBack to patent indexSource: USPTO 35 USC §181 secrecy order records