COREACTIVE IMIDO OLIGOMER BLEND
Assignee
Boeing
Filed as: BOEING COMPANY, THE, A CORP. OF DE
Filed
Mar 29, 1988
Granted
May 19, 1992
Location
BELLEVUE WA US
Abstract
The physical properties of high performance composites can be tailored by using coreactive oligomer blends to make the composites. The blends include a first oligomer having an unsaturated hydrocarbon end cap and a second oligomer having an amine, hydroxyl, sulfhydryl, or ##STR1## functionality. Upon curing, the oligomers homopolymerize (i.e. addition polymerize) and mutually interlink (i.e. copolymerize) to form composites possessing intermediate properties to those exhibited by the pure oligomers. The coreactive oligomer blends may also include noncrosslinking polymers and other coreactants, as desired. Stiffness or toughness can be increased in thermally stable composites without significant loss of other properties through these coreactive oligomer blends that cure to block copolymers.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 24, 1989
Rescinded
Oct 7, 1991
Duration
1 year, 10 months
Inventor
- 1CLYDE H. SHEPPARD
Record Details
- Patent number
- US 5115087
- Application
- 07174747
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records