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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11643485 B1

PDFFull Text
Date of Patent:
May. 09, 2023

Filed:

Oct. 07, 2019

Ethylene-based polymer, polyethylene-based resin composition and use thereof, catalyst component for olefin polymerization, olefin polymerization catalyst containing the component, and method for producing ethylene-based polymer by using the catalyst

Applicant:

Japan Polyethylene Corporation, Kawasaki, JP;

Inventors:

Yoshiyuki Ishihama, Kanagawa, JP;

Ryousuke Asakawa, Kanagawa, JP;

Tsutomu Sakuragi, Mie, JP;

Tetsurou Fukuda, Kanagawa, JP;

Kazuya Sakata, Mie, JP;

Masaru Aoki, Mie, JP;

Kenji Kawagishi, Kanagawa, JP;

Keiichi Yoshimoto, Kanagawa, JP;

Assignee:

JAPAN POLYETHYLENE CORPORATION, Kawasaki, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

James E McDonough

Int. Cl.
CPC ...
B01J 31/00 (2006.01); C08F 210/16 (2006.01); C08F 10/02 (2006.01); C08F 4/6592 (2006.01); C08J 5/18 (2006.01); C08L 23/08 (2006.01); B01J 21/00 (2006.01); B01J 23/00 (2006.01); B01J 25/00 (2006.01); B01J 29/00 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 210/16 (2013.01); C08F 4/65927 (2013.01); C08F 10/02 (2013.01); C08J 5/18 (2013.01); C08L 23/0815 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08L 2205/025 (2013.01); C08L 2314/06 (2013.01);
Abstract

An object of the present invention is to provide a polyethylene-based resin composition excellent in the moldability and at the same time, excellent in the balance between impact strength and stiffness as well as in the transparency, and a molded product and a film, which are obtained by the molding of the polyethylene-based resin composition. The polyethylene-based resin composition of the present invention comprises from 41 to 99 wt % of (A) an ethylene-based polymer satisfying specific conditions and from 1 to 59 wt % of (B) an ethylene-based polymer satisfying specific conditions, wherein MFR of the composition as a whole is from 0.05 to 50 g/10 min and the density is from 0.910 to 0.960 g/cm.

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