Idemitsu Petrochemical Co., Ltd.

Tsutomu Akimaru

Hideo Funabashi

Tsuyoshi Ota

Masatoshi Toda

Akira Tanaka

Masayuki Tsuruoka

Youichi Matsuo

Akinobu Sugahara

Kenji Nakacho

Isamu Yamamoto

Sigeo Iwasaki

Tsuyoshi Ohta

Norio Shimakura

A solid product as a catalyst component for an olefin polymerization catalyst is obtained by the reaction of metallic magnesium, an alcohol, and a halogen in an amount ranging from 0.019 to 0.06 gram-atom per one mole of metallic magnesium. Alternatively, the halogen component is a halogen-containing compound which contains not less than 0.0001 gram-atom of a halogen atom per one gram-atom of metallic magnesium.

Catalyst component for olefin polymerization and process for producing

A process for the preparation of an ethylenic polymer composition having excellent physical properties such as high impact properties, environmental stress cracking resistance, pinch-off fusing characteristics and having an intrinsic viscosity ranging from 3.2 to 4.5 dl/g and a density ranging from 0.943 g/cm.sup.3 to 0.958 g/cm.sup.3.

Process for preparing ethylenic polymer composition

Growing community of inventors

Ichihara, Japan

Tsutomu Akimaru