US 5576375
POLY (PHENYLENE-VINYLENE) RESINS FROM VINYLETHYNYLBENZENE AND DIETHYNYLBENZENE
Assignee
AEROJET-GENERAL CORPORATION,
Filed
Jun 15, 1988
Granted
Nov 19, 1996
Location
PLACERVILLE CA US
Abstract
A novel resin is formed by the copolymerization of vinylethynylbenzene and diethynylbenzene. Polymerization is carried out under conditions which result in the retention of both unreacted vinyl groups from the vinylethynylbenzene component and unreacted ethynyl groups from the diethynyl component, both of 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 17, 1989
Rescinded
Nov 17, 1993
Duration
4 years, 8 months
Inventor
- 1ROBERT E. OLSEN
Record Details
- Patent number
- US 5576375
- Application
- 07207321
- 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