IP Library Granted Patent US 8,449,899
Granted Patent B2
US 8,449,899 · App. 12/933,295 · Granted May 28, 2013

Non-aqueous generation of chlorine dioxide

Inventor: Michael F. Coughlin (Cincinnati, OH)
Assignee: Diversey, Inc.
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Quick Facts
Patent No.
US 8,449,899
App. No.
12/933,295
Granted
May 28, 2013
Kind
B2
Abstract

Disclosed is a method of making a non-aqueous chlorine dioxide solution by combining a chlorite salt and a non-aqueous carboxylic acid and the non-aqueous chlorine dioxide solution made by this method. Also disclosed are methods of disinfecting an object by applying the non-aqueous chlorine dioxide solution to the object and methods of disinfecting a liquid by adding the non-aqueous chlorine dioxide solution to the liquid.

Claims (9)

1. A method of making a non-aqueous chlorine dioxide solution comprising: combining a solid chlorite salt and a liquid non-aqueous carboxylic acid to produce a non-aqueous chlorine dioxide solution.

2. The method of claim 1 , wherein the chlorite salt is sodium chlorite.

3. The method of claim 1 , wherein the non-aqueous carboxylic acid is a fatty acid of the formula RCOOH, wherein R is an aliphatic group.

4. The method of claim 3 , wherein the non-aqueous carboxylic acid is octanoic acid.

5. The method of claim 1 , wherein the concentration of chlorite salt is at least about 0.1 g per liter non-aqueous carboxylic acid.

6. The method of claim 1 , wherein the concentration of chlorite salt is at least about 1 g per liter non-aqueous carboxylic acid.

7. The method of claim 1 , further comprising adding a hydrotrope to at least one of the non-aqueous carboxylic acid and the non-aqueous chlorine dioxide solution to produce a water-compatible non-aqueous chlorine dioxide solution.

8. The method of claim 1 , further comprising adding an antimicrobial to at least one of the non-aqueous carboxylic acid and the non-aqueous chlorine dioxide solution.

9. The method of claim 1 , further comprising adding a wetting agent to at least one of the non-aqueous carboxylic acid and the non-aqueous chlorine dioxide solution.

Assignments (5)
RELEASE OF SECURITY AGREEMENT REEL/FRAME 045300/0141 Recorded Jul 10, 2023
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DIVERSEY, INC.; THE BUTCHER COMPANY
Reel/Frame 064236/0722 →
SECURITY AGREEMENT Recorded Feb 9, 2018
From: DIVERSEY, INC.; THE BUTCHER COMPANY
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 045300/0141 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2013
From: COUGHLIN, MICHAEL F.
To: DIVERSEY, INC.
Reel/Frame 030259/0821 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2012
From: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
To: DIVERSEY, INC. (FORMERLY KNOWN AS JOHNSONDIVERSEY, INC.)
Reel/Frame 027618/0044 →
PATENT SECURITY AGREEMENT Recorded Oct 28, 2010
From: DIVERSEY, INC.
To: CITIBANK, N.A.
Reel/Frame 025204/0689 →
Continuity (2)
Provisional Application 61038269 · Mar 20, 2008
Related Publication 20110020472A1 · Jan 27, 2011