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. 16, 2019
Filed:
Jul. 10, 2017
Applicant:
Houghton Technical Corp., Wilmington, DE (US);
Inventor:
Mores Basaly, Roswell, GA (US);
Assignee:
Houghton Technical Corp., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 13/08 (2006.01); C23F 1/20 (2006.01); C11D 3/04 (2006.01); C11D 3/20 (2006.01); C11D 11/00 (2006.01); C23F 1/16 (2006.01); C23F 3/03 (2006.01); C23G 1/12 (2006.01); B44C 1/22 (2006.01); C23F 1/00 (2006.01); C03C 15/00 (2006.01); C03C 25/68 (2006.01); C25F 3/00 (2006.01); C25D 11/16 (2006.01);
U.S. Cl.
CPC ...
C23F 1/20 (2013.01); C11D 3/042 (2013.01); C11D 3/046 (2013.01); C11D 3/2082 (2013.01); C11D 11/0029 (2013.01); C23F 1/16 (2013.01); C23F 3/03 (2013.01); C23G 1/125 (2013.01); C25D 11/16 (2013.01); Y10T 428/12993 (2015.01);
Abstract
The invention relates to compositions and methods that are useful in etching a metal surface. In particular, the invention relates to novel acid compositions and methods of using such compositions in etching a metal surface, preferably an aluminum surface prior to anodizing to dissolve impurities, imperfections, scale, and oxide. The compositions are effective in maintaining their etching capacity and in removing smut produced by the etching of a surface as well as in general cleaning.