A process for producing an olefin polymer article.

摘要

A process for producing an olefin polymer article which comprises charging a fluid olefin manomer and a coordination catalyst to a mould polymerizing the mixture in the mould in liquid or supercritical phase, continuing the polymerization until a cohesive mass of polymer is formed and accomidating for polymer shrinkage by reducing the volume of the mould during polymerization or by supplying an additional amount of monomer to the mould.