ozone, such as tank linings, conveyor belts, and protective clothing 065 330,000 068 450,000 165 330,000 268 480,000 269 520,000 365 330,000 Lanxess butyl 1013 301 402 Exxon chlorobutyl ... strength)/stress relaxation balance and melt rheology. Th is leads to potential benefi ts in reduced cold fl ow, better extrudate/calendered surface ...