US 5594058
POLYPHENYLENE RESINS FROM VINYLETHYNYLBENZENE, DIETHYNYLBENZENE AND PHENYLACETYLENE
Assignee
AEROJET-GENERAL CORPORATION,
Filed
Jun 15, 1988
Granted
Jan 14, 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
May 8, 1989
Rescinded
Nov 17, 1993
Duration
4 years, 6 months
Inventor
- 1ROBERT E. OLSEN
Record Details
- Patent number
- US 5594058
- Application
- 07207324
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
AEROJET-GENERAL CORPORATION,Back to patent indexSource: USPTO 35 USC §181 secrecy order records