Plexiglass

(1930) 1930) Invented by William Chalmers (19051995) Poly(methyl methacrylate) (PMMA), also known as acrylic or acrylic glass as well as by the trade names Crylux, Plexiglas, Acrylite, Lucite, and Perspex among several others (see below ), is a transparent thermoplastic often used in sheet form as a lightweight or shatterresistant alternative to glass. The same material can be used as a casting resin, in inks and coatings, and has many other uses.