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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 11161088 B1

PDFFull Text
Date of Patent:
Nov. 02, 2021

Filed:

Jan. 12, 2017

O2 scavenging caco3 treatment

Applicant:

Omya International Ag, Oftringen, CH;

Inventors:

Samuel Rentsch, Spiegel bei Bern, CH;

Matthias Welker, HĂ©singue, FR;

Patrick A. C. Gane, Rothrist, CH;

Assignee:

Omya International AG, Oftringen, CH;

Attorneys:

ALGM LLP

Harry J. Guttman

Primary Examiner:

Trevor Love

Int. Cl.
CPC ...
B01J 20/04 (2006.01); C09K 15/00 (2006.01); B01D 53/86 (2006.01); B01J 20/30 (2006.01); B01J 20/28 (2006.01); B01J 20/22 (2006.01); B01J 20/26 (2006.01); C08K 3/26 (2006.01); D21H 19/42 (2006.01); D21H 21/38 (2006.01); B01D 53/02 (2006.01); A23L 3/3436 (2006.01); B65D 81/26 (2006.01); C09C 1/02 (2006.01); C08K 9/04 (2006.01); C08K 9/02 (2006.01);
U.S. Cl.
CPC ...
B01J 20/043 (2013.01); A23L 3/3436 (2013.01); B01D 53/02 (2013.01); B01D 53/8615 (2013.01); B01J 20/22 (2013.01); B01J 20/223 (2013.01); B01J 20/261 (2013.01); B01J 20/28007 (2013.01); B01J 20/28016 (2013.01); B01J 20/28057 (2013.01); B01J 20/28059 (2013.01); B01J 20/28061 (2013.01); B01J 20/3085 (2013.01); B65D 81/266 (2013.01); C08K 3/26 (2013.01); C09C 1/021 (2013.01); C09K 15/00 (2013.01); D21H 19/42 (2013.01); D21H 21/38 (2013.01); A23V 2002/00 (2013.01); B01D 2251/606 (2013.01); B01D 2253/112 (2013.01); B01D 2253/1124 (2013.01); B01D 2253/20 (2013.01); B01D 2253/304 (2013.01); B01D 2253/306 (2013.01); B01D 2255/20738 (2013.01); B01D 2257/104 (2013.01); B01D 2258/06 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C08K 9/02 (2013.01); C08K 9/04 (2013.01); C08K 2003/265 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01);
Abstract

The present invention refers to the use of a surface-treated calcium carbonate-comprising material and/or magnesium carbonate-comprising material as oxygen scavenger; wherein the surface treatment agent is selected from the group consisting of ascorbic acid and/or salts thereof, gallic acid and/or salts thereof, unsaturated fatty acids and/or salts thereof, elemental iron, iron (II)-salts and iron (ID-comprising oxides, iron (II, III)-comprising oxides and mixtures thereof; and wherein the total weight of the surface treatment agent on the total surface area of the at least one calcium carbonate-comprising material and/or magnesium carbonate-comprising material is from 0.01 to 40 mg/m, based on the at least one calcium carbonate-comprising material and/or magnesium carbonate-comprising material.

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