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. 16, 2013
Filed:
Sep. 16, 2009
Zai-ming Qiu, Woodbury, MN (US);
John C. Hulteen, Afton, MN (US);
Zai-Ming Qiu, Woodbury, MN (US);
John C. Hulteen, Afton, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Disclosed are epoxy-functionalized perfluoropolyether polyurethane compounds having the following general structure (RQXC(O)NH)—R—(NHC(O)XQ(E))wherein Ris a monovalent perfluoropolyether moiety; Q is independently a connecting group of valence at least 2, which may contain heteroatoms; Xis O, S, or NR, wherein R is H or a lower alkyl of 1 to 4 carbon atoms; Ris a residue of a multi-isocyanate; Xis O, S, or NR, wherein R is a lower alkyl of 1 to 4 carbon atoms; E is an organic group having at least one oxirane ring; m is at least 1; n is at least 1; o is 1, 2 or 3; and m+n is from 2 to 10.