Patent ID: 11858208
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A hardening agent for three-dimensional printing, comprising:
a water dispersible boron-containing hardener selected from the group consisting of boron carbide, boron nitride, a silicon boride, an aluminum boride, an alkali metal boride, an alkaline earth metal boride, a transition metal boride, a lanthanide boride, and combinations thereof, wherein the water dispersible boron-containing hardener present in an amount ranging from about 6 wt % to about 15 wt %, and wherein the water dispersible boron-containing hardener has an average particle size ranging from about 2 nm to about 100 nm; and
a jettable liquid vehicle;
wherein the hardening agent is devoid of a pigment and a dye.