US 5686027
PROCESS FOR FORMING CARBON-CARBON COMPOSITE
Assignee
BANKERS TRUST COMPANY, AS AGENT
Filed
Dec 5, 1989
Granted
Nov 11, 1997
Location
PLACERVILLE CA US
Abstract
A novel polyphenylene resin is formed by the polycyclotrimerization of vinylethynylbenzene, diethynylbenzene and phenylacetylene. Polymerization is carried out under conditions which result in the retention of unreacted vinyl groups from the vinylethynylbenzene component, which are then susceptible to crosslinking. The polymer is useful in the formation of high-performance carbon-carbon composites, producing an unusually high char yield with advantageous handling and processing characteristics.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 15, 1991
Rescinded
Nov 9, 1993
Duration
2 years, 8 months
Inventor
- 1ROBERT E. OLSEN
Record Details
- Patent number
- US 5686027
- Application
- 07451722
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
BANKERS TRUST COMPANY, AS AGENTBack to patent indexSource: USPTO 35 USC §181 secrecy order records