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:
Feb. 08, 2022
Filed:
Apr. 11, 2019
Basf SE, Ludwigshafen am Rhein, DE;
Alexander Fluegel, Ludwigshafen, DE;
Marco Arnold, Ludwigshafen, DE;
Nadine Engelhardt, Ludwigshafen, DE;
Marcel Patrik Kienle, Limburgerhof, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present invention provides an aqueous composition comprising tin ions and at least one compound of formula I wherein Xis selected from a linear or branched C-Calkanediyl, which may optionally be interrupted by O or S or a Cto Caromatic moiety, Ris a copolymer of ethylene oxide and a further Cto Calkylene oxide, wherein the content of ethylene oxide is from 5 to 30% by weight, Ris selected from H, R, R, R, R, are (a) independently selected from H, R, R, or (b) may together form a divalent group X; Xis selected from a linear or branched C-Calkanediyl, which may optionally be interrupted by O, S or NR; Ris H or a linear or branched C-Calkyl, Ris selected from H, Rand a linear or branched C-Calkyl.