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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 12006454 B1

PDFFull Text
Date of Patent:
Jun. 11, 2024

Filed:

Nov. 25, 2020

Paper article comprising a paper component and a heat-sealable coating

Applicant:

Omya International Ag, Oftringen, CH;

Inventors:

Jan Philipp Weihs, Dudingen, CH;

Fabien Wilhelm Monnard, Aarburg, CH;

Assignee:

OMYA INTERNATIONAL AG, Oftringen, CH;

Attorneys:

ALGM LLP

Harry J. Guttman

Primary Examiner:

Sheeba Ahmed

Int. Cl.
CPC ...
C09J 7/35 (2018.01); B32B 21/06 (2006.01); B32B 27/10 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 29/00 (2006.01); C09J 5/06 (2006.01); C09J 7/21 (2018.01); C09J 11/04 (2006.01); D21H 27/36 (2006.01);
U.S. Cl.
CPC ...
C09J 7/35 (2018.01); B32B 21/06 (2013.01); B32B 27/10 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 29/005 (2013.01); C09J 5/06 (2013.01); C09J 7/21 (2018.01); C09J 11/04 (2013.01); D21H 27/36 (2013.01); B32B 2250/26 (2013.01); B32B 2255/12 (2013.01); B32B 2255/20 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2270/00 (2013.01); C09J 2301/304 (2020.08); C09J 2301/414 (2020.08); C09J 2400/283 (2013.01); C09J 2400/286 (2013.01); C09J 2400/306 (2013.01); C09J 2423/04 (2013.01); C09J 2433/00 (2013.01);
Abstract

The present invention refers to a paper article comprising a paper component having a first side and a second side, wherein the first side and/or the second side of the paper component is at least partially coated with a heat-sealable coating, wherein the heat-sealable coating comprises a first polymer comprising units derived from a (meth)acrylate and/or (meth)acrylic acid and/or a salt thereof, and a second polymer, being different from the first polymer, comprising units derived from a) a (meth)acrylate and/or (meth)acrylic acid and/or a salt thereof, and b) an alkene, wherein the first polymer and the second polymer are present in the heat-sealable coating in a weight ratio of 90:10 to 35:65, and wherein the first polymer and the second polymer are present in the heat-sealable coating in an overall amount of at least 50 wt. %, based on the total weight of the coating. Furthermore, the present invention refers to a laminate comprising a paper component, a substrate and a heat-seal layer being present between the paper component and the substrate, which is obtained by heat-sealing a paper article according to the present invention to the substrate. The invention also refers to a use of a coating for heat-sealing a paper component to a substrate.

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