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.

Date of Patent:
Jan. 17, 2012

Filed:

Sep. 13, 2007
Applicants:

Sakari Saastamoinen, Hämeenlinna, FI;

Tero Seppala, Kuusankoski, FI;

David Robert Cordier, Chesapeake, VA (US);

Christian Bruce Edmonds, Rincon, GA (US);

Inventors:

Sakari Saastamoinen, Hämeenlinna, FI;

Tero Seppala, Kuusankoski, FI;

David Robert Cordier, Chesapeake, VA (US);

Christian Bruce Edmonds, Rincon, GA (US);

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 17/68 (2006.01); D21H 17/69 (2006.01); C01B 33/14 (2006.01); C01B 33/18 (2006.01); C01B 33/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

An aqueous polysilicate composition comprising a polysilicate microgel based component in association with particles derived from colloidal polysilicate. The invention also concerns a process for preparing an aqueous polysilicate composition comprising mixing an aqueous colloidal polysilicate with an aqueous phase of a polysilicate microgel. The aqueous polysilicate composition is more effective than colloidal silica and is more stable than a conventional polysilicate microgel.


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