Compositions and methods for use in three dimensional model printing
AssigneeObject Geometries Ltd.
InventorEduardo Napadensky
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Abstract
Compositions for use in the manufacture of 3-D objects including compositions for use as a support and/or release material in the manufacture of said 3-D objects are provided. The compositions for use in the manufacture of 3-D objects comprise at least one reactive component, at least one photo-initiator, at least one surface-active agent and at least one stabilizer. The compositions for use as a support and/or release material comprise at least one non-reactive and low-toxicity compound, at least one surface-active agent, at least one stabilizer and optionally at least one reactive component and at least one photo-initiator. Methods for manufacturing a 3-D object using the compositions of the present invention are also provided.
Claims51
A method for the preparation of a three-dimensional object by three-dimensional printing, said method comprising the steps of:
- dispensing a first interface material from a dispenser, said first interface material comprising:
- at least one reactive component;
- at least one photo-initiator;
- at least one surface-active agent;
- and
- at least one stabilizer;
- dispensing a second interface material from said dispenser, said second interface material comprising:
- at least one non-reactive and low toxicity compound;
- at least one surface-active agent;
- and
- at least one stabilizer;
- and
- combining said first interface material and said second interface material in pre-determined proportions to produce a multiplicity of construction layers for forming said three-dimensional object;
- whereby said first interface material is cured resulting in a solid form, and whereby said second interface material is irradiated or cured resulting in a liquid or a solid form capable of swelling or breaking down upon exposure to water or to an alkaline or acidic water solution.
A second interface composition suitable for use as a support for three-dimensional objects built by a method of selective dispensing, said composition comprising:
- at least one non-reactive and low toxicity component;
- at least one reactive component;
- wherein said non-reactive and low toxicity component is not reactive with said reactive component,
- at least one surface-active agent;
- at least one stabilizer;
- and
- at least one component able to produce gas upon exposure to water or to
- an alkaline or acidic water solution;
- wherein said composition has a first viscosity of above 50 cps at room temperature, and a second viscosity compatible with ink-jet printers at a second temperature, wherein said second temperature is higher than room temperature;
- wherein, after curing, said composition results in a solid form capable of swelling or breaking down upon exposure to water or to an alkaline or acidic water solution.
Dependencies are inferred from the claim text.