US 12,034,193 B2
Fluorinated copolymer and compositions and articles including the same
Lisa P. Chen, St. Paul, MN (US); Gregg D. Dahlke, St. Paul, MN (US); Denis Duchesne, Woodbury, MN (US); Klaus Hintzer, Kastl (DE); Matthew J. Lindell, Woodbury, MN (US); Sean M. Smith, Woodbury, MN (US); Arne Thaler, Emmerting (DE); and Michael A. Yandrasits, Hastings, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/782,193
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 18, 2020, PCT No. PCT/US2020/065867
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/127346, PCT Pub. Date Jun. 24, 2021.
Claims priority of provisional application 62/951,469, filed on Dec. 20, 2019.
Prior Publication US 2023/0056130 A1, Feb. 23, 2023
Int. Cl. H01M 8/1039 (2016.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01); H01M 8/1004 (2016.01)
CPC H01M 8/1039 (2013.01) [H01M 4/881 (2013.01); H01M 4/9008 (2013.01); H01M 8/1004 (2013.01); H01M 2300/0082 (2013.01)] 20 Claims
 
1. A copolymer comprising:
divalent units represented by formula —[CF2—CF2]—;
at least one divalent unit independently represented by formula:

OG Complex Work Unit Chemistry
wherein a is 0 or 1, each b is independently 2 to 8, c is 0 to 2, e is 1 to 8, and each X is independently —F, —NZH, —NZSO2(CF2)1-6SO2X′, —NZ[SO2(CF2)dSO2NZ]1-10SO2(CF2)dSO2X′, or —OZ, wherein Z is independently a hydrogen, alkyl having up to four carbon atoms, an alkali-metal cation, or a quaternary ammonium cation, X′ is independently —NZH or —OZ, and each d is independently 1 to 6; and
at least one divalent unit independently represented by formula:

OG Complex Work Unit Chemistry
wherein A is —N(RFa)2 or a non-aromatic, 5- to 8-membered, perfluorinated ring comprising one or two nitrogen atoms in the ring and optionally comprising at least one oxygen atom in the ring, each RFa is independently linear or branched perfluoroalkyl having 1 to 8 carbon atoms and optionally interrupted by at least one catenated O or N atom, each Y is independently —H or —F, with the proviso that one Y may be —CF3, h is 0, 1, or 2, each i is independently 2 to 8, and j is 0, 1, or 2.