Tire and automobile parts such as fuel hose, rubber packing and timing belts etc. are made of rubber vulcanizate, the improvement of their ozone resistance by addition of antidegradant is very important theme.
This paper reviews the ozone protection activity of antidegradants evaluated by their reactivity for ozone, the influence of volatility by heating or the extraction by water (rainfall) on the ozone protection activity of antidegradant, and the protection of NR, CR and NBR vulcanizates against ozone degradation by addition of antidegradant with ozone protection activity and ozone protect wax.