公开(公告)号：US12274765B2

公开(公告)日：2025-04-15

申请号：US18333956

申请日：2023-06-13

Applicant: Solventum Intellectual Properties Company

Inventor： Andreas Herrmann ,  Gioacchino Raia ,  Malte Korten ,  Oliver Kappler ,  Bernhard Hofmann ,  Adrian Eckert ,  Helmar Mayr ,  Reinhold Hecht ,  Gallus Schechner ,  Rainer Guggenberger

IPC: A61K6/887 ,  A61C5/73 ,  A61K6/17 ,  A61K6/62 ,  A61K6/65 ,  A61K6/76 ,  A61K6/77 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

Abstract: The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−1.
The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.