ELASTOMERIC INSULATING MATERIALS FOR ROCKET MOTORS
Assignee
HERCULES INCORPORATED
Filed
Feb 21, 1986
Granted
Nov 7, 1989
Location
WACO TX US
Abstract
Non-asbestos elastomeric insulating materials for rocket motors are disclosed. The insulating materials are low in density (between about 0.035 and 0.050 lb./cubic inch) and comprise crosslinked elastomeric polymers (100 parts by weight of a crosslinkable elastomeric polymer that is substantially saturated and about 5-50 parts by weight of a crosslinkable, substantially unsaturated, elastomeric polymer) in which are dispersed between about 10 and 100 (preferably 15-75) parts by weight of a char forming organic fiber selected from polyaramide pulps, between 1 and 15 parts by weight of a peroxide crosslinker, and between about 0 and 150 parts by weight organic and/or inorganic particulate. The insulating materials issue little smoke, have notable erosion resistance and can be tailored to have thermal, mechanical and other properties of desired character. Ingredients such as supplemental elastomers, oils and lubricants enhance the processability and green properties such as tack of the insulating materials.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jul 2, 1986
Rescinded
Nov 17, 1988
Duration
2 years, 4 months
Inventor
- 1LILES G. HERRING
Record Details
- Patent number
- US 4878431
- Application
- 00683211
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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