Dual cure resins for additive manufacturing
AssigneeCarbon, Inc.
InventorsRobert K Pinschmidt, Jr., Andrew Gordon Wright, Jason P. Rolland
Life of this patent
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Abstract
Provided herein is a resin product useful for the production of three-dimensional objects by additive manufacturing, and methods using the same. The resin may include a reactive blocked prepolymer comprising a prepolymer blocked with reactive blocking groups; a polyol; a photoinitiator; and at least one organometallic catalyst. A packaged product useful for the production of three-dimensional objects by additive manufacturing, the product comprising a single container having a single chamber and a resin in the chamber with all components mixed together, is also provided.
Claims21
A resin useful for the production of three-dimensional objects by additive manufacturing, comprising:
- (a) a reactive blocked prepolymer comprising a prepolymer blocked with reactive blocking groups;
- (b) a polyol;
- (c) a photoinitiator;
- (d) at least one organometallic catalyst comprising:
- a metal amidine complex and/or a second compound, wherein the second compound is a metal carboxylate or a carboxylic acid, and/or a third compound wherein the third compound is a metal chelate complex of an acetylacetonate;
- (e) optionally, a reactive diluent;
- (f) optionally, and
- (g) optionally, a pigment or dye.
Dependencies are inferred from the claim text.