| http://www.w3.org/ns/prov#value | - Typically, a flexible support is employed, especially a paper support, which may be partially acetylated or coated with baryta and/or an ??-olefin polymer, particularly a polymer of an ??-olefin containing 2 to 10 carbon atoms such as polyethylene, polypropylene, ethylene-butene copolymers and the like.
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