| abstract |
High concentration urethane methacrylate oligomers having at least one polymerizable group and a number average molecular weight of 750 g/mol to 4000 g/mol; An effective amount of a monofunctional reactive diluent monomer; A defined concentration of network former having a lower molecular weight than the urethane methacrylate oligomer; Optionally, a photoinitiator; And, optionally, additives, thermosetting compositions and composition kits suitable for use in an additive manufacturing process are described herein. In addition, a method of forming a three-dimensional part through an additive manufacturing process using a urethane methacrylate oligomer-centric composition (where various exposure irradiance, curing temperature and oxygen content levels are described), as well as cured from it Article is disclosed. |