Three-dimensional printing with glycidyl compounds
AssigneePeridot Print LLC
InventorsTienteh Chen, Christina Gissel Rodriguez, Benjamin Abelovski
Life of this patent
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Abstract
The present disclosure describes binder agents for printing three-dimensional green body objects, three-dimensional printing kits, and methods of three-dimensional printing. In one example, a binder agent for printing a three-dimensional green body object can include water, an organic co-solvent, a glycidyl compound having two or more glycidyl groups per molecule, and latex particles. The latex particles can include polymerized monomers. The polymerized monomers can include a first monomer having an acid group, and a second monomer having a vinyl group and without an acid group.
Claims20
A binder agent for printing a three-dimensional green body object, the binder agent consisting of:
- water;
- from about 20 wt % to about 40 wt % of a single organic co-solvent, wherein the single organic co-solvent is 1,2-butanediol;
- a glycidyl compound having two or more glycidyl groups per molecule;
- latex particles consisting of polymerized monomers, wherein the polymerized monomers consist of:
- a first monomer having an acid group;
- a second monomer that is a styrene monomer;
- and
- a third monomer selected from the group consisting of an acrylate, a methacrylate, and a combination thereof,
- wherein:
- the second and third monomers make up a hydrophobic component of the latex particles, and wherein latex particles have a hydrophobic component content ranging from 85 wt % to 99.9 wt %;
- and
- the latex particles have i) a first monomer content ranging from 0.1 wt % to 15 wt % and ii) a hydrophobic component content ranging from 85 wt % to about 99.9 wt %;
- and
- optionally an additive selected from the group consisting of a surfactant, a biocide, an anti-kogation agent, and combinations thereof.
A binder agent for printing a three-dimensional green body object, the binder agent consisting of:
- water;
- from about 20 wt % to about 40 wt % of a single organic co-solvent, wherein the single organic co-solvent is 1,2-butanediol;
- a glycidyl compound having two or more glycidyl groups per molecule;
- latex particles selected from the group consisting of i) a 31.4% solids dispersion of a copolymer of styrene, methyl methacrylate, and butyl acrylate with 1 wt % methacrylic acid and ii) a 32.4% solids dispersion of a copolymer of styrene, methyl methacrylate, and butyl acrylate with 3 wt % methacrylic acid;
- and
- optionally an additive selected from the group consisting of a surfactant, a biocide, an anti-kogation agent, and combinations thereof.
A method of three-dimensional printing, comprising:
- iteratively applying individual build material layers of a particulate build material comprising from about 80 wt % to about 100 wt % of metal particles;
- based on a three-dimensional object model, selectively applying a binder agent to the individual build material layers to define layers of a three-dimensional green body object, the binder agent consisting of:
- water;
- from about 20 wt % to about 40 wt % of a single organic co-solvent, wherein the single organic co-solvent is 1,2-butanediol;
- a glycidyl compound having two or more glycidyl groups per molecule;
- latex particles consisting of polymerized monomers, wherein the polymerized monomers consist of:
- a first monomer having an acid group;
- a second monomer that is a styrene monomer;
- and
- a third monomer selected from the group consisting of an acrylate, a methacrylate, and a combination thereof,
- wherein:
- the second and third monomers make up a hydrophobic component of the latex particles, and wherein latex particles have a hydrophobic component content ranging from 85 wt % to 99.9 wt %;
- and
- the latex particles have i) a first monomer content ranging from 0.1 wt % to 15 wt % and ii) a hydrophobic component content ranging from 85 wt % to 99.9 wt %;
- and
- optionally an additive selected from the group consisting of a surfactant, a biocide, an anti-kogation agent, and combinations thereof;
- and
- heating the three-dimensional green body object to drive off water and further solidify the three-dimensional green body object.
Dependencies are inferred from the claim text.