Used primarily in the production of photographic film and motion picture film due to its excellent clarity, dimensional stability, and UV-blocking properties. Also employed in the manufacture of cigarette filters, where it helps reduce tar delivery by trapping particulate matter. Commonly used in eyeglass frames and tool handles because of its good mechanical strength, ease of coloring, and biocompatibility. Applied in the textile industry as a fiber for clothing and home furnishings, offering a soft feel, good draping properties, and breathability. Additionally, utilized in the pharmaceutical industry, such as for capsule shells or as a binder in tablets, and in medical devices like dialyzers that contact body fluids, owing to its biocompatibility and non-inflammatory nature. Employed in reverse osmosis membranes for water purification, leveraging its ability to form thin, selective films that allow water to pass while rejecting salts and contaminants.