Patent ID: 11958240
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Basic materials chemistry (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 12:
13. A method of making a three-dimensional printed article, the method comprising:
iteratively applying individual build material layers of a powder bed material including polymer particles to a powder bed;
based on a three-dimensional object model, selectively applying a fusing agent onto individual build material layers, wherein the fusing agent comprises water and a radiation absorber;
based on the three-dimensional object model, selectively applying a detailing agent onto individual build material layers laterally at a border between a first area where the powder bed material is contacted by the fusing agent and a second area where the powder bed material is not contacted by the fusing agent, wherein the detailing agent comprises a lipophilic phase discontinuously dispersed within an aqueous phase by a surfactant, wherein the lipophilic phase includes an organosilane having a central silicon atom coupled to a C6 to C24 aliphatic or alicyclic hydrocarbon and multiple hydrolyzable groups, wherein the organosilane is present in the detailing agent in an amount ranging from about 1 wt % to about 20 wt %; and
exposing the powder bed material to energy to selectively fuse the polymer particles in contact with the radiation absorber to form a fused polymer matrix at individual build material layers.