（翻訳例）
The preferred material is a polymer comprising vinyl chloride. A modified polymer, as defined below, can be used with modified or unmodified cellulose. Unmodified polymer can be used only with a modified adhesive fiber.
Polyvinyl chloride is a common commodity thermoplastic polymer. Vinyl chloride monomer is made from a variety of different processes such as the direct chlorination of ethylene. Polyvinyl chloride is typically manufactured by the free radical polymerization of vinyl chloride resulting in a useful thermoplastic polymer.
