Films

Natural Films

• Leather

• Parchment

• Vellum

• Papyrus

• Paper

Artificial Films

• Celluloid (1889, Goodwin, Eastman)

• Cellulose Acetate (1909, Dreyfus, Celanese)

• Cellophane (1927, Charch, DuPont)

Early Synthetic Films

• Polyethylene (1933, ICI)

• Teflon (1938, Plunkett, DuPont)

• Mylar (1952, DuPont, ICI)