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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 12768109 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Dec. 01, 2022

Method for improving grease and oil resistance of a fiber based article

Applicant:

Kemira Oyj, Helsinki, FI;

Inventors:

Markus Kvist, Helsinki, FI;

Sami Puttonen, Helsinki, FI;

Kimmo Strengell, Helsinki, FI;

Leif Robertsén, Helsinki, FI;

Matti Hietaniemi, Helsinki, FI;

Assignee:

Kemira Oyj, Helsinki, FI;

Attorney:

Espatent Oy

Primary Examiner:

Rita P Adlakha

Assistant Examiner:

Elisa H Vera

Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 17/17 (2006.01); D21H 17/42 (2006.01); D21H 17/55 (2006.01); D21H 21/28 (2006.01); D21H 23/08 (2006.01); D21J 3/00 (2006.01); D21J 5/00 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 17/17 (2013.01); D21H 17/42 (2013.01); D21H 17/55 (2013.01); D21H 21/28 (2013.01); D21H 23/08 (2013.01); D21J 3/00 (2013.01); D21J 5/00 (2013.01);
Abstract

There is provided a method for improving grease and oil resistance of a moulded fiber based article comprising introducing to a fiber stock a composition comprising a synthetic polymer component and a cationic polymer component and thermoforming the fiber stock. There is also provided a moulded fiber based article and a use of the composition improving grease and oil resistance of a moulded fiber based article. There is also provided a method for preparation of a moulded fiber based article.

Find Patent Forward Citations

Kvist, Markus. (2026). Method for improving grease and oil resistance of a fiber based article (U.S. Patent No. 12768109). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12768109

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

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