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. 14, 2015
Filed:
Oct. 23, 2009
Fabio Riganti, Carnago, IT;
Vincent Pierre Meunier, Arese, IT;
Valerio Carsetti, Arese, IT;
Fabio Brunetta, Cornuda Treviso, IT;
Andrea Brunetta, Treviso, IT;
Fabio Riganti, Carnago, IT;
Vincent Pierre Meunier, Arese, IT;
Valerio Carsetti, Arese, IT;
Fabio Brunetta, Cornuda Treviso, IT;
Andrea Brunetta, Treviso, IT;
Solvay Specialty Polymers Italy S.p.A., Bollate (Milan), IT;
Abstract
A method of forming a lubricating film on a surface, comprising applying to a surface a multiphasic composition comprising at least one (per)fluoropolyether (PFPE) lubricant, water and from 0.1 to 3% by weight of water of at least one thickening agent, said multiphasic composition having a viscosity, when measured at 21° C. at a shear rate of 1 secof at least 10 Pa×sec so as to form a layer, and drying said layer to form a lubricating film. The Applicant has found that by the use of the multiphasic composition as above detailed it is advantageously possible to convey to surface to be lubricated the PFPE lubricant by using application techniques (doctor blade, metering rod, . . . ) as those suitable for solid-like greases, while the actual conveyed lubricant behaves in lubrication as an oil, avoiding the use of fluorinated solvents.