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:
Aug. 17, 2021

Filed:

Mar. 06, 2020
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Yukio Oikawa, Kyoto, JP;

Shigeyoshi Horiike, Kyoto, JP;

Hirotaka Koyama, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/287 (2006.01); C07F 7/08 (2006.01); B01J 20/22 (2006.01); B01J 20/28 (2006.01); B01J 20/291 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); B01D 15/20 (2006.01); B01D 15/32 (2006.01);
U.S. Cl.
CPC ...
B01J 20/287 (2013.01); B01D 15/206 (2013.01); B01D 15/327 (2013.01); B01J 20/22 (2013.01); B01J 20/28028 (2013.01); B01J 20/28047 (2013.01); B01J 20/291 (2013.01); B01J 20/3092 (2013.01); B01J 20/3204 (2013.01); B01J 20/3217 (2013.01); B01J 20/3259 (2013.01); B01J 20/3293 (2013.01); C07F 7/0805 (2013.01); B01J 2220/52 (2013.01);
Abstract

The present invention provides a method for hydrophobization of a hydrophilic material, the method including introducing a hydrophobic group into a hydroxyl group (—OH group) on a surface of the hydrophilic material. A method for hydrophobization of a hydrophilic material, the method comprising reacting a hydrophilic material to be hydrophobized with a hydrophobic group-containing silylating agent in presence of an amino acid as a reaction accelerator, to introduce a hydrophobic group-containing silyl group to a surface of the hydrophilic material. A hydrophobized silica gel column filler is produced by using the method. Further, a hydrophobized silica gel column is produced by filling a column with the hydrophobized silica gel column filler.


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