Within the types dimension, PC/PMMA Co-extruded Film is classified into single‑layer, multi‑layer, barrier, anti‑scratch, and optical variants. Single‑layer films, comprising roughly 20 % of production, serve low‑cost packaging where modest mechanical strength suffices. Multi‑layer constructions, the dominant 35 % segment, integrate additional polymer skins to achieve superior puncture resistance and tailored permeability. Barrier films, representing 25 % of the market, embed high‑performance PMMA layers that dramatically reduce oxygen and CO₂ transmission, critical for extended‑shelf‑life applications. Anti‑scratch films, at 12 %, incorporate hard‑coat additives to protect high‑visibility surfaces in automotive and consumer electronics. Optical films, the remaining 8 %, exploit the refractive index contrast between PC and PMMA to enhance light diffusion in display technologies. Each type’s functional attributes directly influence its share of the overall PC/PMMA Co-extruded Film market, reinforcing the taxonomy’s relevance to strategic investment decisions.