Patent ID: 11859057
Assignee: CARBON, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C  Y | IPC C

Claim 0:
1. A method of recycling a thermoset material, comprising:
(a) providing the thermoset material, wherein said thermoset material is produced by the process of light polymerizing a single-cure resin in an additive manufacturing or coating process, said resin comprising:
(i) a reactive blocked prepolymer;
(ii) a crosslinker;
(iii) a photoinitiator;
(iv) optionally a reactive diluent;
(v) optionally a light absorber;
(vi) optionally pigments and/or dyes; and
(vii) optionally at least one filler;
said thermoset material comprised of at least 70 percent by weight of a crosslinked polymer, said crosslinked polymer consisting essentially of said reactive blocked prepolymer, said crosslinker, and said reactive diluent when included, in light polymerized, cross-linked form;

(b) comminuting said thermoset material into a particulate material; and
(c) combining said particulate material with a reactive blocking agent or reactive capping agent to form a mixture, and heating said mixture for a time sufficient to form a regenerated reactive prepolymer.