In 1952, on behalf of the Aeronautica Militare, BPD patented a solid fuel based on nitro-glycerine and cellulose nitrate, the first step in developing experimental missiles on an industrial scale.
42.
Agateen No . 27 ( cellulose nitrate ) and Paraloid B-72 are the most commonly used lacquers however there is a debate which lacquer, cellulose nitrate or acrylic, is best.
43.
One of only four film conservation centers in the United States ( as of March 2006 ), the facility houses the museum's rare 35 mm prints made on cellulose nitrate.
44.
The motion picture industry continued to use cellulose nitrate supports until the introduction of cellulose triacetate in 1948, which met the rigorous safety and performance standards set by the cinematographic industry.
45.
In Britain, the Cinematograph Act 1909 was the first primary legislation to specifically regulate the film industry . cellulose nitrate for film, combined with limelight illumination, created a significant fire hazard.
46.
So to preserve a record of their work, movie makers printed their films on strips or rolls of paper, which is more stable than the cellulose nitrate used afterward, until 1951.
47.
Because of this, care must be taken in inspecting a film so that it should not break in the gate and be damaged, particularly if it is flammable cellulose nitrate film stock.
48.
Many of the missing films were produced between 1945 and 1957, the earlier ones most probably on nitrocellulose ( cellulose nitrate ) film stock which is unstable and liable to spontaneously combust.
49.
It consisted of an aluminum core disc coated with black cellulose nitrate lacquer, although for reasons which are unclear it soon came to be called an " acetate " disc by radio professionals.
50.
The output of the process ( commonly known as cellulose nitrate or pyroxilin ) could be dissolved in alcohol and hardened into a transparent and elastic material that could be molded when heated.
