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Please see external links for images of buttons (front & back) made from the material(s) in question. ("NBS name" refers to labelling used by the National Button Society, USA.) ("NBS name" refers to labelling used by the National Button Society, USA.)
Celluloids are a class of materials produced by mixing nitrocellulose and camphor, often with added dyes and other agents.Once much more common for its use as photographic film before the advent of safer methods, celluloid's common present-day uses are for manufacturing table tennis balls, musical instruments, combs, office equipment, fountain pen bodies, and guitar picks.
Acrylic elastomer is a general term for a type of synthetic rubber whose primary component is acrylic acid alkyl ester (ethyl or butyl ester). [3] Acrylic elastomer possesses characteristics of heat and oil resistance, with the ability to withstand temperatures of 170–180 °C. It is used primarily for producing oil seals and packaging related ...
The first plastic made from synthetic components, it was developed by Leo Baekeland in Yonkers, New York, in 1907, and patented on December 7, 1909. [ 3 ] Bakelite was one of the first plastic-like materials to be introduced into the modern world and was popular because it could be moulded and then hardened into any shape.
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This composition was pre-plastic, and ideal for everything from doorknobs to roller skate wheels to products such as buttons, cash register keys and jewelry. [1] The composition of Hemacite was touted as susceptible to a high polish, impervious to heat, moisture, atmospheric changes, it acted very similarity to the material Pykrete. [2]
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