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. 02, 2011
Filed:
Jun. 13, 2007
Applicants:
Seung-hoon Lee, Anyang, KR;
Jonni Ahlgren, Vaasa, FI;
Jukka Jäkärä, Siivikkala, FI;
Aarto Parén, Vaasa, FI;
Jukka Rautiainen, Espoo, FI;
Ilkka Renvall, Espoo, FI;
Inventors:
Seung-Hoon Lee, Anyang, KR;
Jonni Ahlgren, Vaasa, FI;
Jukka Jäkärä, Siivikkala, FI;
Aarto Parén, Vaasa, FI;
Jukka Rautiainen, Espoo, FI;
Ilkka Renvall, Espoo, FI;
Assignee:
Kemira Oyj, , FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21C 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for the treatment of a fibre material comprising the step of contacting the fibre material in an aqueous medium with a chelating agent and a polymer having following general formula wherein The invention also relates to a composition comprising a chelating agent and the above polymer.