Sacrificial additively manufactured mold with controlled moisture and liquid absorption properties

Abstract

The present invention relates to sacrificial additively manufactured molds and mold inserts with controlled moisture and liquid absorption properties. The molds and mold inserts are suitable for use in casting and injection molding processes. The present invention also relates to a method for producing a molded article using the sacrificial additively manufactured molds and/or mold inserts. An additively manufactured mold or mold insert with controlled moisture and liquid absorption properties made of a dissolvable material for use in casting or injection molding processes, wherein the dissolvable material is an energy-cured resin comprising•a (meth)acrylamide-based monomer, •an ethylene oxide-based oligomer having energy-reactive end groups, and•a cross-linking agent, wherein the resin is further characterized by—comprising a resin solvent in an amount of 0.1-50% by weight based on total weight of the resin, preferably 0.5-40% by weight, more preferably 0.8-30% weight based on the total weight of the resin, or—comprising an ethylene oxide-based oligomer having energy-reactive end groups and an EO number in the range of 10 mol or more.

Dependencies are inferred from the claim text.