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:
Oct. 27, 2020
Filed:
Mar. 31, 2017
Basf SE, Ludwigshafen am Rhein, DE;
Aaron Flores-Figueroa, Ludwigshafen am Rhein, DE;
Martin Ruebenacker, Ludwigshafen am Rhein, DE;
Rainer Dobrawa, Lampertheim, DE;
Markus Brym, Ludwigshafen am Rhein, DE;
Dieter Boeckh, Ludwigshafen am Rhein, DE;
Frank Huelskoetter, Cincinnati, OH (US);
Glenn Ward, Cincinnati, OH (US);
James Goodwin, Cincinnati, OH (US);
Melissa Cuthbertson, Cincinnati, OH (US);
Stefano Scialla, Cincinnati, OH (US);
BASF SE, , DE;
Abstract
A copolymer which comprises, in copolymerized form, (A) 60 to 99% by weight of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (I) in which the variables have the following meanings: X is —CH— or —CO—, if Y is —O—; is —CO—, if Y is —NH—; Y is —O— or —NH—; Ris hydrogen or methyl; Rare identical or different C-C-alkylene radicals, which may be arranged blockwise or randomly; Ris hydrogen or C-C-alkyl; n is an integer from 25 to 75, (B) 1 to 40% by weight of at least one quaternized nitrogen-containing monoethylenically unsaturated monomer selected from the group consisting of monomers of formula Ha to IId (Ha-IId) in which the variables have the following meanings: R is C-C-alkyl or benzyl; R' is hydrogen or methyl; Y is —O— or —NH—; A is C-C-alkylene; X— is halide, C-C-alkyl sulfate, C-C-alkylsulfonate and Ci-C4-alkyl carbonate, (C) 0 to 10% by weight of anionic monoethylenically unsaturated monomers, and (D) 0 to 30% by weight of other nonionic monoethylenically unsaturated monomers and has an average molecular weight Mw of >100,000.