US 12,384,807 B2
Fluorinated photoinitiators and fluorinated (co)polymer layers made using the same
Paul J. Homnick, Lake Elmo, MN (US); Thomas P. Klun, Lakeland, MN (US); Brandon R. Pietz, St. Paul, MN (US); Christopher S. Lyons, St. Paul, MN (US); Karl K. Stensvad, Eagan, MN (US); and Kelly A. Volp, Minneapolis, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/997,197
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Apr. 27, 2021, PCT No. PCT/IB2021/053475
§ 371(c)(1), (2) Date Oct. 26, 2022,
PCT Pub. No. WO2021/229340, PCT Pub. Date Nov. 18, 2021.
Claims priority of provisional application 63/025,134, filed on May 14, 2020.
Prior Publication US 2023/0174564 A1, Jun. 8, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C07F 9/53 (2006.01); C08F 16/24 (2006.01); C08F 20/10 (2006.01); C08F 22/20 (2006.01); C09D 4/00 (2006.01); C09D 5/00 (2006.01); C09D 7/63 (2018.01); C09D 129/10 (2006.01); C09D 133/04 (2006.01); C09D 135/02 (2006.01)
CPC C07F 9/5337 (2013.01) [C08F 16/24 (2013.01); C08F 20/10 (2013.01); C08F 22/20 (2013.01); C09D 4/00 (2013.01); C09D 5/002 (2013.01); C09D 7/63 (2018.01); C09D 129/10 (2013.01); C09D 133/04 (2013.01); C09D 135/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluorinated photoinitiator having the formula:

OG Complex Work Unit Chemistry
wherein:
X31, X32, X33, X34, X35 are each independently selected from —H, —F, or —CF3, with the proviso that at least 3 of X31, X32, X33, X34, X35 are —F, or that at least 1 of X31, X32, X33, X34, X35 is —CF3;
Y31, Y32, Y33, Y34, Y35 are each independently selected from —H, or CH3; and
R31 is an alkyl group of 1 to 4 carbon atoms.