isobutylene-isoprene copolymer

例句：

1. 1.The new polymer has excellent mechanical properties and is widely used in various industries.
   这种新型聚合物具有优异的机械性能，广泛应用于各行各业。
2. 2. This copolymer is a key material for the production of high-performance plastics.
   这种共聚物是高性能塑料生产的关键材料。
3. 3. The isobutylene-isoprene copolymer has been found to have excellent flame retardant properties.
   研究发现，异丁烯-异戊二烯共聚物具有优异的阻燃性能。