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:
Jun. 11, 2002
Filed:
Apr. 24, 2001
Applicant:
Inventors:
Michael J. Parent, Oakdale, MN (US);
Jason M. Kehren, Woodbury, MN (US);
Richard M. Minday, Stillwater, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/12 ;
U.S. Cl.
CPC ...
B05D 5/12 ;
Abstract
A lubricant composition comprising a perfluoropolyether lubricant and fluorinated ketone solvent is described. The lubricant composition can be applied as a coating to a substrate such as magnetic media. After the coating dries, a thin uniform lubricant film covers the substrate surface. The fluorinated ketone solvent can solubilize a wide range of perfluoropolyether compounds but not potential contaminants such as water and hydrocarbons. Additionally, the solvent has low potential to adversely affect global warming.