text: * Polyethylene
  * Polypropylene
  * Copolymers of ethylene and 1-alkenes
  * Polybutene-1
  * Polymethylpentene
  * Polycycloolefins
  * Polybutadiene
  * Polyisoprene
  * Amorphous poly-alpha-olefins (APAO)
  * Polyacetylene