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. 24, 2007
Filed:
Oct. 24, 2003
Applicant:
John Martin Burns, Morgan Hill, CA (US);
Inventor:
John Martin Burns, Morgan Hill, CA (US);
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 129/20 (2006.01); C10M 131/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods of improving the solubility of highly functionalized polar perfluorinated polyethers in fluorinated solvents are described. In preferred embodiments, the ratio of solubilizer to fluorinated solvent is the azeotropic ratio. The solubilizer can be an alcohol or cyclic ether. The methods finds utility in hard disc drive applications, where perfluorinated polyethers are used as lubricants. Compositions are also provided.