1. Chemical substances added to rubber and plastics to prevent degradation caused by ozone exposure.
Usage: technical; chemistry; materials science; plural form

Examples

• Manufacturers add antiozonants to tire rubber to extend its lifespan in outdoor conditions.
• The polymer formulation included several antiozonants to resist atmospheric degradation.
• Antiozonants are essential additives in elastomer production for weather-resistant applications.
• The effectiveness of different antiozonants varies depending on the type of rubber used.
• Modern automotive seals rely on antiozonants to maintain flexibility and prevent cracking.