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.:
Date of Patent:
Oct. 07, 2025
Filed:
Sep. 16, 2021
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Anneli Lepo, Espoo, FI;
Paula Hirsilä, Espoo, FI;
Assignee:
KEMIRA OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 17/23 (2006.01); D21H 17/28 (2006.01); D21H 17/66 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 17/23 (2013.01); D21H 17/28 (2013.01); D21H 17/66 (2013.01);
Abstract
The invention relates to a surface size composition for surface sizing of paper, board, or the like. The composition comprises at least an aluminium compound and an anionic lignin-carbohydrate complex.