US 4728375
PYROTECHNIC COMPOSITION FOR PRODUCING RADIATION-BLOCKING SCREEN
Assignee
HALEY & WELLER LIMITED
Filed
Apr 4, 1984
Granted
Mar 1, 1988
Location
NOTTINGHAM GB
Abstract
A pyrotechnic composition for producing a screen for blocking the passage of infra-red radiation and of light, comprises phosphorus, preferably red amorphous phosphorus, dispersed in a binding agent, for example rubber. The composition is produced by forming the binding agent into a gel with solvent, dispersing the phosphorus into the gel, evaporating off solvent, and comminuting the resulting solid material.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Dec 5, 1984
Rescinded
Apr 15, 1987
Duration
2 years, 4 months
Inventor
- 1GEOFFREY M. SIMPSON
Record Details
- Patent number
- US 4728375
- Application
- 06639685
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records