US 12,187,907 B2
Self-initiated energy curable ink compositions
Mathew C. Mathew, Carlstadt, NJ (US); and David Biro, Carlstadt, NJ (US)
Assigned to Sun Chemical Corporation, Parsippany, NJ (US)
Appl. No. 18/016,792
Filed by SUN CHEMICAL CORPORATION, Parsippany, NJ (US)
PCT Filed Jul. 28, 2021, PCT No. PCT/US2021/043382
§ 371(c)(1), (2) Date Jan. 18, 2023,
PCT Pub. No. WO2022/026502, PCT Pub. Date Feb. 3, 2022.
Claims priority of provisional application 63/059,240, filed on Jul. 31, 2020.
Prior Publication US 2023/0287230 A1, Sep. 14, 2023
Int. Cl. C09D 11/38 (2014.01); B41M 5/52 (2006.01); C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C09D 11/32 (2014.01)
CPC C09D 11/38 (2013.01) [B41M 5/5209 (2013.01); C09D 11/32 (2013.01)] 22 Claims
 
1. An energy curable composition, comprising:
(a) 10 wt % to 60 wt % one or more self-initiating oligomers, based on the total weight of the composition, wherein the self-initiating oligomers comprise an ethylenically unsaturated monomer or oligomer having two or more functional groups, wherein at least one of the functional groups is a photo labile chromophore, and wherein the functional groups can react to polymerize the compound;
(b) 2 wt % to 20 wt % one or more amine synergists, based on the total weight of the composition;
(c) 0.5 wt % to 10 wt % one or more group IV metal chelates, based on the total weight of the composition;
provided that the composition contains less than 0.5 wt % of any acyl phosphine oxide photoinitiators.