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.

Date of Patent:
Oct. 19, 2021

Filed:

Jun. 03, 2019
Applicants:

Ajou University Industry-academic Cooperation Foundation, Suwon-si, KR;

S-precious Catalysts Inc., Gyeongju-si, KR;

Inventors:

Bun Yeoul Lee, Suwon-si, KR;

Tae Hee Kim, Bucheon-si, KR;

Hee Soo Park, Seoul, KR;

Jun Won Baek, Incheon, KR;

Su Jin Gwon, Seongnam-si, KR;

Sung Dong Kim, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 31/24 (2006.01); B01J 31/14 (2006.01); C07C 2/36 (2006.01); C07F 11/00 (2006.01);
U.S. Cl.
CPC ...
B01J 31/2438 (2013.01); B01J 31/143 (2013.01); C07C 2/36 (2013.01); C07F 11/00 (2013.01); B01J 2231/20 (2013.01); B01J 2531/62 (2013.01); C07C 2531/14 (2013.01); C07C 2531/24 (2013.01);
Abstract

The present invention relates to a bisphosphine ligand compound, a chromium compound prepared using same, an ethylene oligomerization catalyst system containing the chromium compound, and an ethylene oligomer preparing method, wherein the bisphosphine ligand compound is suitable for mass production and commercial processes, allows extremely high activity to be compatible with excellent economical benefit, and increases selectivity for ethylene oligomerization reaction, thereby being able to be used to manufacture 1-hexene and/or 1-octene at high yield.


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