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:
Apr. 13, 2010
Filed:
Jul. 20, 2005
Christoph Kayser, Mainz, DE;
Gernold Botthof, Antrifttal, DE;
Karl Heinz Heier, Frankfurt am Main, DE;
Aranka Tardi, Neuberg, DE;
Matthias Krull, Harxheim, DE;
Michael Schaefer, Gruendau, DE;
Christoph Kayser, Mainz, DE;
Gernold Botthof, Antrifttal, DE;
Karl Heinz Heier, Frankfurt am Main, DE;
Aranka Tardi, Neuberg, DE;
Matthias Krull, Harxheim, DE;
Michael Schaefer, Gruendau, DE;
Clariant Produkte (Deutschland) GmbH, Frankfurt, DE;
Abstract
The invention relates to a copolymer containing: i) 80-90% by weight of one or more structural units of the formula A, where Ris hydrogen or methyl, Ris C-C-alkylene, and Meis an ammonium or an alkali metal ion; ii) from 1 to 10% by weight of one or more structural units of the formula B where Rand Rare each independently hydrogen, methyl or ethyl; iii) from 1 to 10% by weight of one or more structural units of the formula C, where n is a number from 1 to 6; iv) from 0.1 to 5% by weight of structural units of the formula D where X is hydrogen, an ammonium ion or an alkali metal ion; and optionally, v) from 0 to 10% by weight of one or more structural units of the formula E, where Ris hydrogen, methyl and/or ethyl, with the proviso that the content in the copolymers of structural units B) and C) is from 6 to 15% by weight.