US 11,840,595 B2
Solid catalyst component for olefin polymerization
Masaki Ito, Chiba (JP)
Assigned to SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo (JP)
Filed by SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo (JP)
Filed on Aug. 3, 2021, as Appl. No. 17/392,684.
Claims priority of application No. 2020-134339 (JP), filed on Aug. 7, 2020; and application No. 2021-075193 (JP), filed on Apr. 27, 2021.
Prior Publication US 2022/0041763 A1, Feb. 10, 2022
Int. Cl. C08F 4/16 (2006.01); C08F 4/12 (2006.01)
CPC C08F 4/16 (2013.01) [C08F 4/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A solid catalyst component for olefin polymerization containing a titanium atom, a magnesium atom, a halogen atom, and an internal electron donor, and having an envelope E1 calculated by the following Formula (1) in a range of 0.810 to 0.920:
E1=LE1/LS1  (1)
wherein LE1 is a convex hull perimeter of the solid catalyst component for olefin polymerization obtained from an image of the solid catalyst component for olefin polymerization captured with a scanning electron microscope, and
LS1 is an actual perimeter of the solid catalyst component for olefin polymerization obtained from the image of the solid catalyst component for olefin polymerization captured with the scanning electron microscope.