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US 12,447,680 B2Granted
Particle coating methods for additively manufactured products
AssigneesCarbon, Inc., adidas AG
InventorsAayush A. Shah, Kai Chen, Keith Michael Kirkwood
Life of this patent
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Abstract
Provided is a method of additively manufacturing an object having a particle surface coating thereon, using an intermediate object produced in an additive manufacturing process by light polymerization of a dual cure resin, the intermediate object having residual dual cure resin from which it was produced remaining on a surface portion thereof in unpolymerized form; forming a solid particle coating adhered to the resin coating film; and then further curing the intermediate object.
Claims20
A method of additively manufacturing an object having a particle surface coating thereon, comprising:
- (a) providing an intermediate object produced in an additive manufacturing process by light polymerization of a dual cure resin, wherein said intermediate object is produced by bottom-up or top-down stereolithography, said resin comprising a mixture of (i) a light polymerizable first component, and (ii) a second solidifiable component that is different from said first component;
- said intermediate object having residual dual cure resin from which it was produced remaining on a surface portion thereof in unpolymerized liquid form;
- then
- (b) partially removing said residual resin from said surface portion of the intermediate object under conditions in which a retained portion of said residual resin remains as a resin coating film on said surface portion;
- and then
- (c) contacting said coating film with a dispersed composition comprising solid particles to form a solid particle coating adhered to said resin coating film;
- and then
- (d) heating said intermediate object sufficiently to cure said object and said resin coating film to form a cured object having a solid particle surface coating thereon.
5 more elements
Dependencies are inferred from the claim text.