Dimethylnorbornene, isopropylnorbornene or a mixture thereof is copolymerized by ring opening with (1) at least one acyclic monoolefin or nonconjugated acyclic olefin and (2) optionally, dicyclopentadiene. The copolymers are thermoplastics which can be calendered and thermoformed, for example, to make rigid automotive goods such as glovebox covers, hubcaps and the like.
Dimethylnorbornene、isopropylnorbornene或其混合物通过环合开启与(1)至少一种非环状单烯或非共轭非环状烯烃和(2)可选地,二
环戊二烯共聚。这些共聚物是热塑性材料,可以通过压延和热成型等方式制成刚性汽车零部件,例如手套箱盖、轮辋盖等。