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:
Jan. 01, 2013
Filed:
May. 24, 2006
Norbert Mahr, Limburgerhof, DE;
Dieter Meck, Freinsheim, DE;
Rainer Blum, Mannheim, DE;
Ralf Hemel, Ludwigshafen, DE;
Norbert Gispert, Worms-Horchheim, DE;
Juergen Schmidt-thuemmes, Neuhofen, DE;
Christoph Hamers, Ludwigshafen, DE;
Norbert Mahr, Limburgerhof, DE;
Dieter Meck, Freinsheim, DE;
Rainer Blum, Mannheim, DE;
Ralf Hemel, Ludwigshafen, DE;
Norbert Gispert, Worms-Horchheim, DE;
Juergen Schmidt-Thuemmes, Neuhofen, DE;
Christoph Hamers, Ludwigshafen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.