US 12,247,133 B2
Photocurable composition including a reactive polymer
Fen Wan, Austin, TX (US); Timothy Brian Stachowiak, Austin, TX (US); and Weijun Liu, Cedar Park, TX (US)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 17, 2022, as Appl. No. 17/651,544.
Prior Publication US 2023/0257617 A1, Aug. 17, 2023
Int. Cl. C09D 133/08 (2006.01); C09D 11/00 (2014.01); G03F 7/004 (2006.01); G03F 7/20 (2006.01)
CPC C09D 133/08 (2013.01) [C09D 11/00 (2013.01); G03F 7/0045 (2013.01); G03F 7/2004 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A photocurable composition comprising a polymerizable material and a photoinitiator, wherein
the polymerizable material comprises at least one polymerizable monomer and at least one reactive polymer;
the reactive polymer comprises a carbon content of at least 75% based on the total weight of the reactive polymer;
a molecular weight of the at least one reactive polymer is at least 400 g/mol and not greater than 50,000 g/mol;
an amount of the reactive polymer is at least 5 wt % based on the total weight of the polymerizable material; and
a viscosity of the photocurable composition is not greater than 100 mPa·s, wherein
an amount of the polymerizable material is at least 50 wt % based on the total weight of the photocurable composition;
the polymerizable monomer comprises a multi-functional acrylate monomer in an amount of at least 50 wt % based on the total weight of the polymerizable material and further at least one mono-functional acrylate monomer; and
a total carbon content of the photocurable composition after curing is at least 69%.