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:
May. 05, 2015
Filed:
Feb. 01, 2011
Philipp Zacharias, Mannheim, DE;
Hermann Seyffer, Heidelberg, DE;
Ilshat Gubaydullin, Ludwigshafen, DE;
Harutyun Hanciogullari, Limburgerhof, DE;
Marc Bothe, Monsheim, DE;
Philipp Zacharias, Mannheim, DE;
Hermann Seyffer, Heidelberg, DE;
Ilshat Gubaydullin, Ludwigshafen, DE;
Harutyun Hanciogullari, Limburgerhof, DE;
Marc Bothe, Monsheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
As associative thickener obtainable by free radical polymerization, the preparation thereof and the use thereof in paper coating slips are described. The associative thickener is formed from (a) acid monomers selected from ethylenically unsaturated C- to C-carboxylic acids, (b) associative monomers of the general formula HC═CR—COO-(EO)—(PO)—R, in which Ris hydrogen or methyl, n is a number of at least two, m is a number from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and Ris a C-C-alkyl group or a C-C-alkaryl group, and (c) nonionic, copolymerizable monomers differing from a) and b), the reaction product having been reacted, after the polymerization, with initiators forming nonionic radicals.