Method of controlled conversion of thermosetting resins and additive manufacturing thereof by selective laser sintering

Patent · Tue Apr 04 00:00:00 EDT 2023

OSTI ID:1998256

Campbell, C. Garrett; Celina, Mathias C.

The invention is directed to a method of controlled conversion of thermosetting resins and additive manufacturing thereof by selective laser sintering. Partial curing of a thermosetting formulation can be used to increase the T_g of the resin and minimize the additional cure needed to cross-link a printed object. After printing, the partially cured material is finally cured via a slow temperature ramp maintained just below the material's evolving T_g.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: NA0003525
• Assignee: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
• Patent Number(s): 11,618,835
• Application Number: 17/400,417
• OSTI ID: 1998256
• Resource Relation: Patent File Date: 08/12/2021
• Country of Publication: United States
• Language: English