Title:
ACTIVATOR AND CATALYST FOR PRODUCTION OF ETHYLENIC POLYMER COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2023117555
Kind Code:
A
Abstract:
To provide an activator for polymerization catalysts that makes it possible to produce ethylene polymer particles with a narrow molecular weight distribution and a narrow particle size distribution while achieving a high level of activity, and a catalyst for the production of ethylenic polymers comprising the same.SOLUTION: An activator for polymerization catalysts comprises organic modified clay particles, which are organic modified clay having organic aliphatic groups, characterized by a particle size distribution having at least two peaks, satisfying a) a median size of 8 μm or more and 20 μm or less, b) a main modal diameter of 10 μm or more and 25 μm or less, c) a second modal diameter of 3 μm or more and 4.5 μm or less, and d) the proportion of particles of 5 μm or less being 8 wt.% or less.SELECTED DRAWING: None
Inventors:
IKEDA TAKAHARU
WAKABAYASHI YASUTAKE
WAKABAYASHI YASUTAKE
Application Number:
JP2022020178A
Publication Date:
August 24, 2023
Filing Date:
February 14, 2022
Export Citation:
Assignee:
TOSOH CORP
International Classes:
C08F4/6592; C08F4/02