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. 05, 2019
Filed:
Jan. 05, 2016
Atotech Deutschland Gmbh, Berlin, DE;
Christina Pfirrmann, Berlin, DE;
Philipp Wachter, Berlin, DE;
Philip Hartmann, Berlin, DE;
Nancy Born, Berlin, DE;
Juan-Carlos Umaran, Berlin, DE;
Atotech Deutschland GmbH, Berlin, DE;
Abstract
The present invention concerns a method for increasing the adhesion between a chromium surface and a lacquer wherein said chromium surface is contacted with an aqueous solution comprising at least one phosphorous compound according to formulae R—P(O)(OR)(OR) 1 and R—O—P(O)(OR)(OR) 2 wherein Ris a Cto Calkyl group, linear, branched or cyclic comprising at least one polar residue and Rand Rare independently selected from the group consisting of hydrogen, lithium, sodium, potassium, ammonium and Cto Calkyl while passing an external electrical current through said substrate and at least one anode wherein said substrate serves as the cathode.