| 简介 |
PROBLEM TO BE SOLVED : To provide a polymerization catalyst composition capable of producing a polymer in which a fiber is highly dispersed without special treatment on the fiber.SOLUTION : A method for producing a polymerization catalyst composition includes mixing and aging a second element and a third element, and then adding and reacting a first element, where the first element is a rare earth element-containing compound containing a rare earth element or a reactant of the rare earth element and a Lewis base, the second element contains a compound represented by the general formula (X), and the third element contains a hydrophilic fiber. YRRR(X), where Y is a metal selected from group 1 metals, group 2 metals, group 12 metals and group 13 metals in a periodic table, Rand Rare same or different and a hydrocarbon group having 1 to 10 carbon atoms or a hydrogen atom, Ris a hydrocarbon group having 1 to 10 carbon atoms, however Rmay be same as the Ror the Ror different, a is 1 and b and c are 0 when Y is a metal selected from group 1 metals in a periodic table, a and b are 1 and c is 0 when Y is a metal selected from group 12 metals in a periodic table, and a, b and c are 1 when Y is a metal selected from group 13 metals in a periodic table. |
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