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. 07, 2015
Filed:
Sep. 22, 2009
Pier Antonio Guarda, Arese, IT;
Gianfranco Spataro, Lissone, IT;
Padmanabhan Srinivasan, Milan, IT;
Giuseppe Marchionni, Milan, IT;
Pier Antonio Guarda, Arese, IT;
Gianfranco Spataro, Lissone, IT;
Padmanabhan Srinivasan, Milan, IT;
Giuseppe Marchionni, Milan, IT;
Solvay Specialty Polymers Italy S.p.A., Bollate (Milan), IT;
Abstract
A process for transferring heat from a heat source to a heat sink, comprising using as heat transfer medium a composition comprising: at least one fluorinated fluid free from functional groups (fluid (H)); at least one functional (per)fluoropolyether (functional PFPE(1)) comprising recurring units (R1), said recurring units comprising at least one ether linkage in the main chain and at least one fluorine atom (fluoropolyoxyalkylene chain), and at least one functional end group chosen between —COOH and —CONH; at least one functional (per)fluoropolyether (functional PFPE(2)) comprising recurring units (R1) as defined above and at least one functional end group chosen between —COCFand its hydroxylated derivative —C(OH)CF.