styrene

Simon's "styrol" was eventually identified as the compound we now know as styrene, and his "styrol oxide" was actually polystyrene.

In 1925 he wrote the first patent on high impact polystyrene, HIPS, specifying that "1-10 wt% of rubber, balata or other elastic and plastic gum should be dissolved directly in substantially pure styrol, the solution then polymerized to tough metal styrol" [styrol and metal styrol mean, respectively, styrene and polystyrene].

Monteny, "Resistance of concrete containing styrol acrylic acid ester latex to acids occurring on floors for livestock housing," Cement and Concrete Research, vol.