Overview: November 2018: Acrylic patented 90 years ago (Part 3)

Acrylic patented 90 years ago

23.11.2018

Chemically speaking, it is merely one step from plastics made out of polymethacrylate (PMA) to Perspex, i.e. polymethyl methacrylate (PMMA), production of which began at Röhm & Haas AG in 1928 (Hölscher 1972, 121). In contrast to acrylic acid, methacrylic acid has a methyl group (CH3) and/or is derived ...

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