CPC B29C 64/124 (2017.08) [B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B29K 2049/00 (2013.01); B29K 2105/0002 (2013.01); B29L 2031/757 (2013.01)] | 2 Claims |
1. A method comprising:
making a shaped model comprising a cyanoacrylate polymer;
preparing an investment that has a cavity corresponding to the shaped model; and
heating the shaped model to sufficient temperature that the cyanoacrylate polymer depolymerizes and volatilizes, wherein the shaped model is formed by an additive manufacturing process comprising successively curing superposed layers of a curable composition comprising: a cyanoacrylate monomer, a free-radical initiator, and a protected amine, and wherein the curable composition is free of unprotected amine.
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