Back to results
US 4,225,368 AGranted
Coating of granulated organic dyes with an epoxy
AssigneeCanadian Department of National Defence
InventorsJoseph E. G. Couture, Joseph N. A. Roy
Life of this patent
Estimating the term…
Abstract
This invention relates to organic dye compositions of improved mechanical properties and to a method of coating the dye with an inert coating material which enables the production of pour-castable colored smoke-producing compositions of high solids loading, particularly when a red dye e.g. Disperse Red 9, is employed.
Claims4
A coloured pour-castable smoke-generating composition, consisting of
- (a) 38-40%/w of an organic dye composition comprising about 90 parts of an organic dye having a particle size in the range of 100 to 1000 microns and 10 parts of an inert coating material comprising an epoxy resin, uniformly coating said organic dye,
- (b) 30-32%/w of potassium chlorate as oxidizing agent,
- (c) 8%/w of lactose as fuel,
- (d) 2%/w of sodium bicarbonate as cooling agent, and
- (e) 20%/w of a polybutadiene based binder.
2 more elements
A coloured smoke-generating composition consisting of
- (a) 39.9%/w of an organic dye composition about 90 parts of Disperse Red 9 and 10 parts of an inert coating material comprising an epoxy resin,
- (b) 33.6%/w of potassium chlorate,
- (c) 8.4%/w of lactose,
- (d) 2.1%/w of sodium bicarbonate, and
- (e) 16%/w of a polybutadiene based binder.
2 more elements
Dependencies are inferred from the claim text.