Patent ID: 11939418
Assignee: STRATASYS, INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A photo-curable composition, comprising:
a photo-curable resin comprising:
a first prepolymer having a number average molecular weight of ≤2000 g/mol, said first prepolymer being a reaction product of a first reaction mixture comprising:
a cycloaliphatic diisocyanate,
a hydroxy-functional (meth)acrylate, and
an isocyanate-reactive component, and

a second prepolymer having a number average molecular weight of 2000 g/mol to 10,000 g/mol, said second prepolymer being a reaction product of a second reaction mixture comprising:
a (meth)acrylate, and
a polyactive-hydrogen compound, and

a reactive diluent comprising a (meth)acrylate monomer and/or (meth)acrylate prepolymer; and

a photoinitiator,
wherein the photo-curable composition has a shear viscosity of less than 1 Pa·s at 100° C. at a shear rate of 50 s−1.