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cellulose acetate


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of several compounds obtained by treating cellulose with acetic anhydride, used in lacquers, photographic film, transparent sheeting, and cigarette filters.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an ester of acetic acid; used in fibers and fabrics; photographic films and varnishes


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  • Celluloid film was so flammable that it would often ignite in factories, projectors, or even in storage. "Safety film" made of cellulose acetate--which had the same photographic properties as celluloid but was less volatile--was first developed in the United States by George Eastman, in 1908. Acetate film became standard by 1948, and in 1950 the Eastman Kodak Company won an Academy Award for its invention.

    October 8, 2007