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:
Sep. 16, 2014
Filed:
Apr. 04, 2011
Applicants:
Michael Persson, Västra Frölunda, SE;
Marek Tokarz, Göteborg, SE;
Maj-lis Dahlgren, Nödinge, SE;
Hans Erik Johansson-vestin, Kungälv, SE;
Inventors:
Michael Persson, Västra Frölunda, SE;
Marek Tokarz, Göteborg, SE;
Maj-Lis Dahlgren, Nödinge, SE;
Hans Erik Johansson-Vestin, Kungälv, SE;
Assignee:
Akzo Nobel, N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/113 (2006.01); C01B 33/14 (2006.01); C01B 33/146 (2006.01); D21H 17/68 (2006.01); D21H 21/10 (2006.01); C01B 33/143 (2006.01); C01B 33/141 (2006.01); B01F 3/12 (2006.01); D21H 17/37 (2006.01); D21H 17/45 (2006.01); D21H 17/29 (2006.01);
U.S. Cl.
CPC ...
C01B 33/146 (2013.01); D21H 17/68 (2013.01); D21H 21/10 (2013.01); D21H 17/375 (2013.01); C01B 33/1435 (2013.01); D21H 17/455 (2013.01); D21H 17/29 (2013.01); C01B 33/143 (2013.01); C01B 33/141 (2013.01);
Abstract
An aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m/g aqueous sol and a pH of at least 10.5, and an S-value within the range of from 10 to 45% and/or contains silica-based particles having a specific surface area of at least 550 and less than about 1200 m/g SiO, and wherein the sol is substantially free from aluminium.