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:
Jul. 10, 2012
Filed:
Jan. 23, 2004
Andrew M. Hatch, Lake Orion, MI (US);
Gary L. Rochfort, Shelby Township, MI (US);
Richard D. Banaszak, Sterling Heights, MI (US);
Andrew M. Hatch, Lake Orion, MI (US);
Gary L. Rochfort, Shelby Township, MI (US);
Richard D. Banaszak, Sterling Heights, MI (US);
Henkel KGaA, Duesseldorf, DE;
Abstract
The present invention discloses an improved cleaning composition for cleaning metal surfaces such as aluminum and aluminum-containing alloys. The cleaning composition of the present invention comprises water and an ethoxylate of an alcohol having Formula R—OH wherein Ris a saturated or unsaturated, straight-chain or branched aliphatic having from 12 to 80 carbon atoms; an inorganic pH adjusting component; and at least one surfactant that is different than the ethoxylate set forth above. The cleaning composition of the present invention also has an average water-break-free percent reduction of less than 50% after 7 days aging of a working composition prepared from the cleaning composition. The present invention also provides a method of cleaning a metal surface with the cleaning composition of the invention.