公开(公告)号：US11939484B2

公开(公告)日：2024-03-26

申请号：US17298927

申请日：2019-06-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Graciela E. Negri Jimenez ,  Michael A. Novick ,  Tienteh Chen ,  Jacob Wright

IPC: C09D11/54 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C08K5/5415 ,  C09D11/102 ,  B29K83/00

CPC classification number: C09D11/54 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C08K5/5415 ,  C09D11/102 ,  B29K2083/00

Abstract: A multi-fluid kit for three-dimensional printing can include a fusing agent with water and a radiation absorber, and a detailing agent. The radiation absorber can absorb radiation energy and converts the radiation energy to heat. The detailing agent can include water and from about 0.1 wt % to about 20 wt % organosilanes based on a total weight of the detailing agent, wherein the organosilanes include an organosilane compound with a central silicon having both a water-solubilizing group and multiple hydrolyzable groups attached thereto.

公开(公告)号：US11759997B2

公开(公告)日：2023-09-19

申请号：US16069428

申请日：2016-05-12

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Andre Garcia ,  Michael A. Novick

IPC: B29C64/112 ,  B29C64/153 ,  B29C64/165 ,  B29C64/209 ,  B29C64/35 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/277 ,  B29C67/00 ,  B41J2/505 ,  B29C64/329

CPC classification number: B29C64/112 ,  B29C64/153 ,  B29C64/165 ,  B29C64/209 ,  B29C64/277 ,  B29C64/329 ,  B29C64/35 ,  B29C64/393 ,  B29C67/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B41J2/5056 ,  B33Y10/00

Abstract: According to an example, a three-dimensional (3D) printer may include a first delivery device to selectively deposit first liquid droplets onto a layer of build materials and a second delivery device to selectively deposit second liquid droplets onto the layer of build materials, in which the second delivery device is positioned in relatively close proximity to the first delivery device. The 3D printer may also include a controller to identify a density at which the second liquid droplets are to be selectively deposited to control splashing of the build materials upon which the second liquid droplets are deposited and to control the second delivery device to selectively deposit the second liquid droplets at the identified density.

公开(公告)号：US11097472B2

公开(公告)日：2021-08-24

申请号：US16526076

申请日：2019-07-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Bernardo A. Gutierrez ,  Jacob T. Wright ,  Michael A. Novick

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/10

Abstract: At least one agent distributor may be to selectively deliver coalescing agent onto portions of a layer of build material at a first density and at a second density lower than the first density. A controller may be to control the at least one agent distributor to selectively deliver the coalescing agent at the first and second densities onto respective first and second portions of the layer in respective first and second patterns derived from data representing the three-dimensional object to be generated, so that when energy is applied to the layer the build material may coalesce and solidify to form a slice of the three-dimensional object in accordance with the first pattern. The second portion may be in proximity to a boundary of the first portion. Presence of the coalescing agent in the second portion may be to prevent at least some heat from flowing away from the first portion when the energy is applied.