Patent ID: 11891341
Assignee: HRL LABORATORIES, LLC
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A preceramic resin formulation for 3D-printing and free-radical or cationic polymerization, said preceramic resin formulation comprising:
(a) a functionalized carbosilane having the chemical structure:, , wherein:
R1 is selected from the group consisting of an allyl group, an ethynyl group a vinyl ether group, a glycidyl group, a glycidyl ether group, a vinyl glycidyl ether group, a vinyl amide group, a vinyl triazine group, a vinyl isocyanurate group, a cyano group, a cyanate group, a thiocyanate group, and combinations thereof;
R2 is selected from the group consisting of an allyl group, an ethynyl group a vinyl ether group, a glycidyl group, a glycidyl ether group, a vinyl glycidyl ether group, a vinyl amide group, a vinyl triazine group, a vinyl isocyanurate group, a cyano group, a cyanate group, and combinations thereof; and
n=2 to 100;
(b) a photoinitiator;
(c) a free-radical inhibitor; and
(d) a 3D-printing resolution agent, wherein said 3D-printing resolution agent is selected for its capability to improve 3D-print quality and resolution by containing curing to a desired region of light exposure laterally and/or vertically in a pre-cured print bath via absorbing said light at a first wavelength and converting energy produced therefrom into thermal energy or radiation at a higher wavelength.