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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 10676624 B1

PDFFull Text
Date of Patent:
Jun. 09, 2020

Filed:

May. 27, 2016

Use of surface-reacted calcium carbonate as anti-blocking agent

Applicant:

Omya International Ag, Oftringen, CH;

Inventors:

Patrick A. C. Gane, Rothrist, CH;

Steffen Ohr, Sursee, CH;

Catherine Jean Ridgway, Mühlethal, CH;

Philipp Hunziker, Loveland, OH (US);

Assignee:

Omya International AG, Oftringen, CH;

Attorneys:

ALGM LLP

Harry J. Guttman

Primary Examiner:

Hannah J Pak

Int. Cl.
CPC ...
C09D 7/00 (2018.01); C09D 7/62 (2018.01); C09C 1/02 (2006.01); C09D 4/00 (2006.01); C08K 3/26 (2006.01); C08F 220/18 (2006.01); C09D 7/40 (2018.01); C01F 11/18 (2006.01); C09D 133/12 (2006.01); C09D 133/08 (2006.01); C08K 9/02 (2006.01);
U.S. Cl.
CPC ...
C09D 7/62 (2018.01); C01F 11/185 (2013.01); C08F 220/18 (2013.01); C08K 3/26 (2013.01); C09C 1/021 (2013.01); C09C 1/022 (2013.01); C09D 4/00 (2013.01); C09D 7/69 (2018.01); C09D 133/12 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C08K 9/02 (2013.01); C08K 2003/265 (2013.01); C08K 2201/003 (2013.01); C08K 2201/005 (2013.01); C08K 2201/006 (2013.01); C09D 133/08 (2013.01);
Abstract

The present invention relates to the use of a surface-reacted calcium carbonate as an anti-blocking agent in polymer(s) containing compositions, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and one or more HOion donors in an aqueous medium, wherein the carbon dioxide is formed in situ by the HOion donors treatment and/or is supplied from an external source, an anti-blocking agent comprising surface-reacted calcium carbonate or a combination of surface reacted calcium carbonate and mineral material, a method for controlling the blocking of polymer(s) containing compositions, a polymer(s) containing composition comprising surface reacted calcium carbonate or a combination of surface reacted calcium carbonate and mineral material, a coating composition comprising such polymer(s) containing composition, as well as a substrate coated with such coating composition.

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