logo

For the Inventor, By the Inventor

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.:

US 10821433 B1

PDFFull Text
Date of Patent:
Nov. 03, 2020

Filed:

Oct. 18, 2018

Ion exchange resins, purification methods and methods of making ionic resins

Applicant:

Rohm and Haas Electronic Materials Llc, Marlborough, MA (US);

Inventors:

Andrey Rudenko, Clinton, MA (US);

Gerhard Pohlers, Needham, MA (US);

Assignee:

Rohm and Haas Electronic Materials LLC, Marlborough, MA (US);

Attorney:

Jonathan D. Baskin

Primary Examiner:

Michael Bernshteyn

Int. Cl.
CPC ...
B01J 45/00 (2006.01); B01J 41/14 (2006.01); C07C 67/56 (2006.01); C07C 41/36 (2006.01); B01J 41/05 (2017.01); B01J 47/12 (2017.01); B01J 47/016 (2017.01);
U.S. Cl.
CPC ...
B01J 45/00 (2013.01); B01J 41/05 (2017.01); B01J 41/14 (2013.01); B01J 47/016 (2017.01); B01J 47/12 (2013.01); C07C 41/36 (2013.01); C07C 67/56 (2013.01);
Abstract

An ion exchange resin comprises a crosslinked resin and a salt covalently bonded to a carbon of the resin, wherein the salt comprises a first non-metallic cation and a first counteranion, wherein the first counteranion comprises a second non-metallic cation and a thiosulfate counteranion, and wherein the ion exchange resin is essentially free of metals. The ion exchange resin finds particular use in the removal of impurities from solutions that are useful in the manufacture of semiconductor devices.

Find Patent Forward Citations

Rudenko, Andrey. (2020). Ion exchange resins, purification methods and methods of making ionic resins (U.S. Patent No. 10821433). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10821433

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…