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. 16, 2015
Filed:
Dec. 14, 2009
Rudolf J. Dams, Antwerp, BE;
Jimmie R. Baran, Jr., Prescott, WI (US);
Yong K. Wu, Woodbury, MN (US);
Rudolf J. Dams, Antwerp, BE;
Jimmie R. Baran, Jr., Prescott, WI (US);
Yong K. Wu, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Method comprising contacting a hydrocarbon-bearing formation with a composition comprising solvent and a fluoropolyether compound. The fluoropolyether compound: is represented by formula Rf—[C(0)-NR—X'—(Z)]; or comprises at least one first divalent unit represented by formula (I) and, at least one of, a second divalent unit comprising a pendant Z group; or a monovalent unit comprising a thioether linkage and at least one terminal Z group. Each Rf is independently a fluoropolyether group. Rf is a monovalent or divalent fluoropolyether group, and each Z group is independently —P(O)(OY)or —O—P(O)(OY). Hydrocarbon-bearing formations treated according to this method are also disclosed.