Preparation of alpha-olefinic polymer

Abstract

Abstract PURPOSE: To control the stereoregularity and obtain the titled polymer in high yield, by incorporating a specific Ti compound with an organoaluminum compound, an electron donor, an electron acceptor, etc., and adding a reaction product of an organoaluminum compound with an electron donor to the resultant mixture, preliminarily activating the mixture, and using the resultant catalyst. CONSTITUTION: Titanium tetrachloride is reduced to prepare a composition, containing titanium trichloride, ad expressed by the formula (R is 1W15C hydrocarbon; M is metal of Group IIIa or IIa in the periodic table; X is halogen; ED is electron donor; EA is electron acceptor; m and n are 0≤n<m, m is 2 or 3; 0.5≤a<1;b>0; c≥0; d≥0; a+b+c+d=1). The resultant composition is then combined with an organoaluminum compound, treated with an α-olefin and mixed with an electron donor, electron acceptor or a reaction product thereof, mixed with a reaction product of a trialkylaluminum with an electron donor at a molar ratio in the range of 0.01W5, and preliminailiy activated. An α-olefin is then polymerized in the presence of the rsultant catalyst. COPYRIGHT: (C)1982,JPO&Japio

Inventors

• 👤 Teruhiro Sato
• 👤 Kazutsune Kikuta
• 👤 Kenji Matsuda
• 👤 Toshihiro Uei
• 👤 Toru Hanari

Bibliographic Details