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:
Aug. 27, 2019
Filed:
Jul. 10, 2015
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Clayton Campbell, Easton, MD (US);
James Atkinson, Bradford, GB;
Arkadiusz Zaniewski, Brzoza, PL;
Marko Kolari, Vantaa, FI;
Jaakko Ekman, Helsinki, FI;
Assignee:
Kemira Oyj, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/02 (2006.01); D21H 17/65 (2006.01); D21C 3/22 (2006.01); D21H 17/67 (2006.01);
U.S. Cl.
CPC ...
D21C 3/226 (2013.01); D21H 17/65 (2013.01); D21H 17/675 (2013.01); D21H 21/02 (2013.01);
Abstract
The present invention provides a method for preventing or decreasing scale formation on process surfaces in manufacturing process of paper, board or the like, in which method performic acid is used as an antiscaling agent.