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:
Jun. 06, 2017
Filed:
Jun. 06, 2014
Basf SE, Ludwigshafen, DE;
Huiguang Kou, Viernheim, DE;
Clemens Auschra, Freiburg, DE;
Frank Pirrung, Gruentstadt, DE;
Matthias Maier, Sandhausen, DE;
Dario Perera-Diez, Basel, CH;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to novel polymer dispersants in the form of comb polymers P and to a liquid composition containing solid fine particles, such as organic or inorganic pigments and fillers, and the polymer dispersants. The comb polymer P having at least 0.5 mol-%, e.g. 0.5 to 90 mol-%, based on the total amount of repeating units in the comb polymer, of repeating units A, selected from repeating units of the formulae la and lb: wherein Ris selected from the group consisting of hydrogen, —S(═O)R, C-Calkyl, C-Ccycloalkyl, aryl, heteroaryl, aryl-C-C-alkyl and heteroaryl-C-C-alkyl; and X indicates a polymer group of the following formula X wherein Z indicates a polymer segment or a monovalent alkyl or alkenyl segment having from 10 to 100 carbon atoms; R1 is as defined above; k is 0, 1, 2, 3 or 4; n is 0, 1 or 2; A is a chemical bond or a divalent moiety selected from the group consisting of C-Calkylene, —O—(C-Calkylene) or —C(═O)—O—(C-Calkylene), where the C-Calkylene part is attached to Q; Q is a divalent moiety selected from the group consisting of —O—, —NH— and —S—; Ris independently selected from the group consisting of —OH, —COOH, —COOCH, —NH, —NH(C-Calkyl), —N(C-Calkyl), —NO, —S(═O)R, C-Calkyl, C-Calkoxy, halogen, aryloxy, aryl, heteroaryl.