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BoPET film was developed in the mid-1950s, [6] [7] originally by DuPont, [6] Imperial Chemical Industries (ICI), and Hoechst. In 1953 Buckminster Fuller used Mylar as a skin for a geodesic dome, which he built with students at the University of Oregon. [8] In 1955 Eastman Kodak used Mylar as a support for photographic film and called it "ESTAR ...
The film was remarkably durable and indeed trying to effectively destroy the image was a serious problem when sensitive material needed to be destroyed. Simply heating the film damaged the image, eventually, but usually left it largely intact. Eventually a patented process was developed that accomplished this in a reasonable amount of time.
Biaxially oriented PET (BOPET) film (including brands like "Mylar") can be aluminized by evaporating a thin film of metal onto it to reduce its permeability, and to make it reflective and opaque . These properties are useful in many applications, including flexible food packaging and thermal insulation (such as space blankets).
Kapton is a polyimide film used in flexible printed circuits (flexible electronics) and space blankets, which are used on spacecraft, satellites, and various space instruments. Invented by the DuPont Corporation in the 1960s, Kapton remains stable across a wide range of temperatures, from 4 to 673 K (−269 to +400 °C).
Cellulose acetate is also known as "safety" film and started to replace nitrate film in still photography in the 1920s. [1] There are several types of acetate that were produced after 1925, which include diacetate (c. 1923 – c. 1955), acetate propionate (1927 – c. 1949), acetate butyrate (1936–present), and triacetate (c. 1950 – present). [1]
Diplomat – A single-ply drumhead made from 7.5 mil of Mylar film. Diplomats are commonly used as resonant heads for toms. Diplomat Hazy — A single-ply drumhead made from 2 mil Mylar film, for snare bottom heads [4] Controlled Sound / Controlled Sound X – Drumheads made with 10 mil of Mylar film with a 5 mil center dot to add durability ...
Mylar film, 0.0005" (12.5 μm) thick, is suspended in front of the magnet structure about 1/16" (1.6 mm) away from the magnets. Aluminum wires or film are then glued to the mylar. Only aluminum was used: copper has two-thirds the resistance of aluminum, which would make the speakers either much larger or much more difficult to drive.
Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet". Thicker plastic material is often called a "sheet". These thin plastic membranes are used to separate areas or volumes, to hold items, to act as barriers, or as printable surfaces.
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