polybutene

例句：

1. 1.This polybutene plastic is strong and durable.
   这种聚丁烯塑料既坚固又耐用。
2. 2.Polybutene is commonly used in packaging materials.
   聚丁烯常用于包装材料。
3. 3.The polybutene film is waterproof and resistant to UV rays.
   这种聚丁烯薄膜防水且抗紫外线。