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:
Nov. 07, 2023
Filed:
Jan. 25, 2021
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 65/06 (2006.01); B01D 61/10 (2006.01); B01D 61/14 (2006.01); B01D 63/02 (2006.01); B01D 69/00 (2006.01); B01D 71/34 (2006.01);
U.S. Cl.
CPC ...
B01D 65/06 (2013.01); B01D 61/10 (2013.01); B01D 61/14 (2013.01); B01D 63/02 (2013.01); B01D 69/00 (2013.01); B01D 71/34 (2013.01);
Abstract
The present invention relates to a method of filtering an oil, the method including the following steps (A) and (B): (A) allowing a hydrophobic gas to permeate through a porous membrane including a hydrophobic polymer as a main component; and (B) allowing an oil to permeate through the porous membrane, in which the step (B) is performed after the hydrophobic gas that has permeated through the porous membrane is confirmed to have a relative humidity of 0 to 60% in the step (A).