One of the mysteries of the English language finally explained.
A form of polyester resin used to make heat-resistant plastic films and sheets. It is made by copolymerizing ethylene glycol and terephthalic acid.
- ‘If they are sleeved in plastic, be sure it is not PVC plastic (look for Mylar or polypropylene).’
- ‘A balloon constructed of a tough polyester film called Mylar will deliver her to the edge of space.’
- ‘It has an optical quality far better than other materials, such as Mylar or polypropylene, that are typically used in laboratories.’
- ‘Another wall was adorned with brightly colored curvilinear shapes made of cutout vinyl, placed on rectilinear pieces of transparent Mylar that were carefully distributed in an uneven pattern.’
- ‘Because sheets of different materials - whether paper, Mylar, or metal - display similar ridges, the basic crumpling process must be similar in these materials.’
1950s: an arbitrary formation.
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