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:
Feb. 13, 2018
Filed:
Nov. 19, 2013
3m Innovative Properties Company, St. Paul, MN (US);
Wayne W. Fan, Cottage Grove, MN (US);
Dong-Wei Zhu, Shoreview, MN (US);
Rudolf J. Dams, Antwerp, BE;
Yong K. Wu, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A composition is disclosed that includes fluorinated polymer and a non-fluorinated polymer. The fluorinated polymer includes first divalent units independently represented by formula and second divalent unit independently comprising a pendent cationic, anionic, amphoteric, or amine-oxide group or a pendent poly(alkyleneoxy) segment. The non-fluorinated polymer is RO-(EO)—(RO)-(EO)—Ror RO—(RO)-(EO)—(RO)—R. A method of making the composition and methods of reducing the surface tension of a liquid and a method of treating a hydrocarbon-bearing formation are also disclosed.