| 摘要 |
<p>Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component being prepared by the reaction of the following components [I] and [II) :> [I] a reaction product obtained by reacting the following components (1), (2) and (3) with one another: (1) a silicon oxide and/or an aluminum oxide; (2) a reaction product obtained by the reaction of a magnesium halide and compound represented by the general formula Me(OR)nXz - n wherein Me represents an element of Groups I to IV in the periodic Table, z represents the valence of the element Me, n is 0 < n </= z, X is a halogen atom, and R is a hydrocarbon radical having 1 to 20 carbon atoms; and (3) a titanium compound represented by the general formula Ti(OR)nX4 - n wherein R is a hydrocarbon radical having 1 to 20 carbon atoms, X is a halogen atom, and n is 0</= n </= 4, in the presence of a compound represented by the general formula ROH wherein R is a hydrocarbon radical having 6 to 20 carbon atoms or an organic residue containing such an element as oxygen, nitrogen, sulfur, or chlorine; and [II] an organoaluminum compound represented by the general formula AlRnX3-n wherein R is a hydrocarbon radical having 1 to 24 carbon atoms, X is a halogen atom, and n is 0 < n < 3. b</p> |
| 申请人 |
NIPPON OIL CO., LTD. |
发明人 |
SANO, AKIRA;OKAMOTO, MITSUO;SHIRAISHI, TAKEICHI;USUI, KATUMI;SUZUKI, KUNIHIRO;SHIMIZU, HIROYUKI;MATSUURA, KAZUO |
