POLYESTER SULFONE OLIGOMERS AND BLENDS
Assignee
Boeing
Filed as: BOEING COMPANY, THE, A CORP OF DE
Filed
Dec 23, 1987
Granted
Jan 6, 1998
Location
ROLLING HILLS E CA US
Abstract
High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcobols (i.e. diols). Multidimensional oligomers have an aromatic hub from which the polyester chains radiate. Blends of the linear and multidimensional oligomers can be made using compatible, non-crosslinking polymers. Prepregs and composites are formed from the oligomers or blends.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Oct 11, 1988
Rescinded
Dec 8, 1995
Duration
7 years, 1 month
Inventor
- 1HYMAN R. LUBOWITZ
Record Details
- Patent number
- US 5705598
- Application
- 07137493
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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