Three-dimensional printing method
AssigneeAgency for Science, Technology and Research
InventorsFuke Wang, Fei Wang
Life of this patent
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Abstract
A method of three-dimensional printing an object having a varying degree of transmissivity to light along an axis of the object, the method comprising the steps of (a) providing a liquefied polymer resin having a plurality of particles therein, the particles being distributed in the liquefied polymer resin based on the density of the particles; and (b) polymerizing the liquefied polymer resin under conditions to form the object layer-by-layer. There is also provided a formulation for three-dimensional printing and a three-dimensional printed object.
Claims17
A method of three-dimensional printing an object having a varying degree of transmissivity to light along an axis of said object, the method comprising the steps of:
- (a) providing a liquefied polymer resin having a plurality of particles therein, wherein said particles have densities in a range of 3 g/cm3 to 12 g/cm3, said particles being distributed in said liquefied polymer resin based on the density of said particles;
- and
- (b) polymerizing said liquefied polymer resin to form said object layer-by-layer by exposing each layer to light.
A formulation for three-dimensional printing comprising:
- (i) 60 wt % to 95 wt % liquefied polymer resin;
- (ii) 5 wt % to 40 wt % particles;
- (iii) 0.1 wt % to 5 wt % photoinitiator;
- and
- (iv) 0 to 0.2 wt % photoadditive, based on the weight of the formulation;
- wherein said particles comprise a plurality of particles having various density values;
- and
- wherein said particles have densities in a range of 3 g/cm3 to 12 g/cm3.
Dependencies are inferred from the claim text.