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:
Apr. 12, 2005
Filed:
Dec. 15, 2000
Applicant:
Uwe Manz, Aalen, DE;
Inventor:
Uwe Manz, Aalen, DE;
Assignee:
Umicore Galvanotechnik GmbH, Hanau-Wolfgang, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D001/18 ; C23C016/00 ; C23C018/00 ; C25D003/00 ;
U.S. Cl.
CPC ...
Abstract
The invention concerns a bath for the electrochemical deposition of high-gloss white rhodium coatings and a whitening agent for the same. The brightness or degree of whiteness of the deposited coatings is significantly increased by means of compounds having the formula R—SO—H, wherein m is the numbers 3 or 4 and R is a straight-chain or branched chain or cyclic alkyl group having up to 20 C atoms, as a whitening agent. The thickness of the coating that can be deposited without a bloom is also significantly increased.