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:
Nov. 27, 2012
Filed:
Jul. 23, 2008
Bjoern Fechner, Eppstein, DE;
Carsten Schaefer, Muehldorf am Inn, DE;
Alexander Woerndle, Frankfurt am Main, DE;
Bjoern Fechner, Eppstein, DE;
Carsten Schaefer, Muehldorf am Inn, DE;
Alexander Woerndle, Frankfurt am Main, DE;
Clariant Finance (BVI) Limited, Tortola, VG;
Abstract
The invention relates to anionically modified copolymers that can be obtained by the polymerization of the monomers (A), (B) and (C), obtaining non-ionic polymers containing reactive terminal OH groups, and by subsequent conversion of the terminal OH groups to form anionic end groups, (A) being a monomer of formula (I) wherein A is C-Calkylene and B is a C-Calkylene different from A, k corresponds to the number 0 or 1, m is a number between 0 and 500, preferably between 0 and 50, n is a number between 0 and 500, preferably between 0 and 50, the sum of m+n being equal to between 1 and 1000; (B) contains an ethylenically unsaturated monomer containing an aromatic group; and (C) is an ethylenically unsaturated monomer containing an alkyl radical.