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US 2020/0026185 A1Published application
Radiation-Curable Resin Composition and Production Method Thereof
AssigneeCentro Technologico De Nanomateriales Avanzados, S.L
InventorKarla Daniela Mora Barrios
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Abstract
A radiation-curable resin composition, suitable for use in 3D printing, and to the production method thereof, i.e. the method for producing three-dimensional objects using radiation by means of 3D printing of the laser, DLP or LCD type, with successive photopolymerisable layers. The radiation-curable resin composition comprises one or more epoxy-acrylic resins and polymethyl methacrylate, graphene, halloysite nanotubes and one or more photoinitiators.
Claims14
Radiation curable resin composition suitable for use in 3D printing characterized in that it is comprised of:
- 40% to 60% by weight of at least one liquid epoxy resin, in which the liquid epoxy resins have at least two groups capable of reacting by a ring opening mechanism to form a polymer lattice,
- 0.1% to 40% by weight of at least one liquid poly(meth)acrylate, of a single functionality (meth)acrylate, wherein said liquid poly(meth)acrylate will be at most 50% by weight of the total content of (meth)acrylate,
- 0.1% to 10% by weight of at least one cationic photoinitiator,
- 0.1% to 10% by weight of at least one free-radical photoinitiator,
- 5% to 15% by weight of at least one polyether provided with terminal OH groups.
- 2% to 30% by weight of a compound that has at least one unsaturated group and at least one hydroxy group in its molecule,
- 0% to 30% by weight of a hydroxylated compound that has no unsaturated group,
- 0.1% to 5% graphene,
- 0.1% to 20% by weight of halloysite nanotubes.
6 more elements
Dependencies are inferred from the claim text.