Olefin-polymerization solid catalytic component, production method for olefin-polymerization catalyst, and production method for olefin polymer
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United States of America Patent
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Nov 12, 2019
Grant Date -
Sep 20, 2018
app pub date -
Jan 18, 2016
filing date -
Jan 30, 2015
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Abstract
A solid catalyst component for olefin polymerization exhibits excellent catalytic activity during polymerization, and can produce a polymer that exhibits excellent stereoregularity, bulk density, and the like even when a polymerization catalyst is produced in an inert atmosphere using an electron donor compound other than a phthalic ester and an organosilicon compound. The solid catalyst component for olefin polymerization is produced by bringing a vinylsilane compound (d) into contact with a catalyst component, the catalyst component being a powdery solid component obtained by bringing a magnesium compound (a), a titanium halide compound (b), and an electron donor compound (c) into contact with each other, the electron donor compound (c) being one or more compounds that do not include a phthalic ester structure, and include one or more groups selected from an ester group, a carbonate group, and an ether group, the vinylsilane compound (d) being brought into contact with the catalyst component in a 0.1 to 15-fold molar quantity with respect to the molar quantity (on a titanium atom basis) of the titanium halide compound (b) included in the catalyst component.
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