US 12,466,908 B2
Curable compositions and methods of using the same
Amanda K. Leone, St. Paul, MN (US); Ahmed S. Abuelyaman, Woodbury, MN (US); Yizhong Wang, Woodbury, MN (US); Wayne S. Mahoney, St. Paul, MN (US); and William H. Moser, Edina, MN (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Appl. No. 17/911,569
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Apr. 5, 2021, PCT No. PCT/IB2021/052823
§ 371(c)(1), (2) Date Sep. 14, 2022,
PCT Pub. No. WO2021/205326, PCT Pub. Date Oct. 14, 2021.
Claims priority of provisional application 63/006,842, filed on Apr. 8, 2020.
Prior Publication US 2023/0119465 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08F 222/10 (2006.01); C08G 61/04 (2006.01); C08K 3/08 (2006.01)
CPC C08F 222/102 (2020.02) [C08K 3/08 (2013.01); C08K 2003/0806 (2013.01)] 14 Claims
 
1. A curable composition comprising:
at least one monomer comprising at least one (meth)acryl group; and
a photoinitiator system comprising:
at least one cyclic β-diketone represented by the formula

OG Complex Work Unit Chemistry
or a tautomer thereof, wherein:
R1 represents an organic moiety having at least one free-radically polymerizable group;
each R2 independently represents H or an aliphatic group having from 1 to 12 carbon atoms, and up to two of oxygen and sulfur atoms; and
n represents 1, 2, or 3; and
at least one Type II photoinitiator.