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:
Feb. 09, 2021
Filed:
Dec. 16, 2016
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Kaoru Ohba, Tokyo, JP;
Kenji Takano, Niigata, JP;
Masonori Iida, Tokyo, JP;
Shinnosuke Abe, Tokyo, JP;
Takashi Masudo, Natori, JP;
Osamu Kishizaki, Tokyo, JP;
Ryo Ishibashi, Tokyo, JP;
Yusuke Yamashita, Tokyo, JP;
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/56 (2006.01); B01J 47/04 (2006.01); B01J 41/07 (2017.01); B01D 15/00 (2006.01); B01J 39/05 (2017.01); B01J 39/07 (2017.01); B01D 15/36 (2006.01); B01J 39/18 (2017.01); B01J 41/12 (2017.01);
U.S. Cl.
CPC ...
B01J 47/04 (2013.01); B01D 15/00 (2013.01); B01D 15/362 (2013.01); B01D 15/363 (2013.01); B01J 39/05 (2017.01); B01J 39/07 (2017.01); B01J 39/18 (2013.01); B01J 41/07 (2017.01); B01J 41/12 (2013.01); C07C 67/56 (2013.01);
Abstract
Methods for the removal of ionic contaminants from hydrolysable organic solvent by ion exchange resins are described. A mixed bed of ion exchange resin with cationic ion exchange resin and weak-base anionic ion exchange resin is used in such methods.