Product obtained by gas-phase copolymerization of ethylene and butene-1 in presence of complex metalorganic catalysts.

Product obtained by polymerization of propylene in presence of complexmetalorganic catalysts. It incorporates long-term thermal stability, thermal-oxidative degradation resistance when PP is produced, processed and PP- made articles are used.

Chemical name: Polymer of prop-2-ene nitrile with buta-1,3-diene and ethenyl benzene

Application: in tyre and mechanical rubber industries, for medical products manufacture.

Heavy pyrolysis resin is produced in ethylene plants as a byproduct from pyrolysis of gasoline or mixed gasoline and gas feedstock.