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.:
Date of Patent:
Dec. 05, 2017
Filed:
Dec. 08, 2015
Applicant:
Nof Corporation, Tokyo, JP;
Inventors:
Masaki Ota, Kawasaki, JP;
Ken Hamura, Kawasaki, JP;
Assignee:
NOF CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 227/00 (2006.01); C07C 213/08 (2006.01);
U.S. Cl.
CPC ...
C07C 213/08 (2013.01);
Abstract
A method for producing a cationic lipid, wherein a cationic lipid represented by formula (1) is mixed with a tetraalkylammonium salt having Xin an organic solvent, and a filtrate obtained by separating a tetraalkylammonium iodide deposited by filtration is concentrated to deposit a tetraalkylammonium iodide, thereby obtaining a cationic lipid represented by formula (2): wherein Rto Rand Xare as defined herein.