The problem with this is that it generally worked the other way.
The military (or government, or some large industries) were willing to pay top dollar for huge quantities of very specialized, hard(er) to manufacture film. As those huge orders paid for making the stuff, it was economical to make just a bit more and sell it to the public.
More normally the military paid for the R&D,... etc.,... prototype coats until they got the performance they wanted... then
One can guess they are now paying for sensor developments too...