公开(公告)号：US20210291441A1

公开(公告)日：2021-09-23

申请号：US16605274

申请日：2018-01-26

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

Inventor： Graciela Emma Negri Jimenez ,  Alexey S. Kabalnov ,  Jacob Wright

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C08J3/215 ,  C08K5/56 ,  C08K3/04 ,  B29C64/245

Abstract: According to examples described herein, methods, compositions, and agents comprising an antistatic agent are described. According to one example, a fusing agent composition for three-dimensional printing can comprise: at least one antistatic agent in an amount of from about 0.01 wt % to about 20 wt % based on a total weight of the fusing agent composition, at least one near infrared absorbing compound, at least one surfactant, at least one organic solvent, and water.

公开(公告)号：US20210277233A1

公开(公告)日：2021-09-09

申请号：US16499510

申请日：2018-01-26

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

Inventor： Graciela Emma Negri Jimenez ,  Alexey S Kabalnov ,  Jacob Wright

IPC: C08L77/06 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00

Abstract: According to examples described herein, methods, compositions, and parts comprising an antistatic agent are described. According to one example, a method of three-dimensional printing can comprise: (i) a layer of build material being deposited; (ii) a first fusing agent being selectively applied on the build material, wherein the first fusing agent can comprise at least one first antistatic agent; and (iii) repetition of (i) and (ii) at least once to form a core of a three-dimensional part.

公开(公告)号：US12115723B2

公开(公告)日：2024-10-15

申请号：US17288522

申请日：2019-06-10

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

Inventor： Alexey S. Kabalnov ,  Jacob Wright ,  Behrang Khorsandian ,  Bernardo A. Gutierrez ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  B82Y20/00 ,  B82Y30/00

CPC classification number: B29C64/165 ,  B29K2995/0035 ,  B33Y10/00 ,  B33Y70/00 ,  B82Y20/00 ,  B82Y30/00

Abstract: A multi-fluid kit for three-dimensional printing includes a fusing agent and a fluorescing detailing agent. The fusing agent includes water and a radiation absorber. The radiation absorber absorbs radiation energy and converts the radiation energy to heat. The fluorescing detailing agent includes water and a fluorescent colorant that is active by exposure to ultraviolet energy to emit light in the visible range of from about 400 nm to about 780 nm. The multi-fluid kit is devoid of a second detailing agent and a second fluorescent colorant.

公开(公告)号：US20220112393A1

公开(公告)日：2022-04-14

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 ,  C08K5/5415 ,  C09D11/102 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/165

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：US20220092235A1

公开(公告)日：2022-03-24

申请号：US17417938

申请日：2019-05-03

Applicant: Hewlett-Packard Development Company, L.P

Inventor： Jacob Wright ,  Xin Cheng ,  Matthew A. Shepherd ,  Vanessa Verzwyvelt

IPC: G06F30/20 ,  B29C64/386 ,  B22F10/80 ,  B33Y50/00 ,  G06F119/08

Abstract: According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, may cause the processor access a thermal simulation of a three-dimensional (3D) model, the thermal simulation identifying thermal values simulated to occur across the 3D model during fabrication of a 3D part corresponding to the 3D model. The instructions may also cause the processor to determine a modification to be applied to first thermal values corresponding to a first section of the 3D model, in which the modification may increase accuracy of the first thermal values in the thermal simulation and to apply the determined modification to the first thermal values to generate a modified thermal simulation of the 3D model.

公开(公告)号：US20220088856A1

公开(公告)日：2022-03-24

申请号：US17288522

申请日：2019-06-10

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

Inventor： Alexey S. Kabalnov ,  Jacob Wright ,  Behrang Khorsandian ,  Bernardo A. Gutierrez ,  Geoffrey Schmid

IPC: B29C64/165 ,  C09K11/06

Abstract: A multi-fluid kit for three-dimensional printing includes a fusing agent and a fluorescing detailing agent. The fusing agent includes water and a radiation absorber. The radiation absorber absorbs radiation energy and converts the radiation energy to heat. The fluorescing detailing agent includes water and a fluorescent colorant that is active by exposure to ultraviolet energy to emit light in the visible range of from about 400 nm to about 780 nm. The multi-fluid kit is devoid of a second detailing agent and a second fluorescent colorant.

公开(公告)号：US20210402684A1

公开(公告)日：2021-12-30

申请号：US17052870

申请日：2019-03-21

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

Inventor： Alexey Kabalnov ,  Jacob Wright ,  Dennis J. Schissler ,  Thomas M. Sabo ,  Jesiska Tandy

IPC: B29C64/165

Abstract: Disclosed herein are kits, methods, systems, and compositions for threedimensional printing. In an example, disclosed herein is a multi-fluid kit for threedimensional printing comprising: a marking agent comprising a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range of from about 400 nm to about 780 nm; a first fusing agent; a second fusing agent different from the first fusing agent; and a detailing agent.

公开(公告)号：US12251875B2

公开(公告)日：2025-03-18

申请号：US17637473

申请日：2019-10-22

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Graciela Emma Negri Jimenez ,  Jacob Wright

IPC: B29C64/165 ,  B29C64/295 ,  B29K77/00 ,  B29K101/12 ,  B29K105/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10

Abstract: A multi-fluid kits for three-dimensional printing can include a fusing agent and a tinted anti-coalescing agent. The fusing agent can include water and an electromagnetic radiation absorber that absorbs radiation energy and converts the radiation energy to heat. The tinted anti-coalescing agent can include an aqueous liquid vehicle, a colored dye dissolved in the aqueous liquid vehicle, and a polyelectrolyte. The polyelectrolyte can have a weight average molecular weight from about 1,000 Mw to about 8,000 Mw, the polyelectrolyte can be water-absorbent at a water to polyelectrolyte weight ratio from about 2:1 to about 1,000:1, and about 90 wt % to 100 wt % of the polyelectrolyte can be dissolved in the aqueous liquid vehicle.

公开(公告)号：US12186976B2

公开(公告)日：2025-01-07

申请号：US17777742

申请日：2019-12-09

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

Inventor： Graciela Emma Negri Jimenez ,  Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Jacob Wright

IPC: B29C64/112 ,  B29C64/165 ,  B29K83/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

Abstract: The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed objects. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a tinted anti-coalescing agent. The fusing agent can include water and an electromagnetic radiation absorber that absorbs radiation energy and converts the radiation energy to heat. The tinted anti-coalescing agent can include an aqueous liquid vehicle, a colored dye dissolved in the aqueous liquid vehicle, and an organosilane. The organosilane can have a central silicon atom covalently coupled to multiple hydrolysable groups and to an organic group by covalent bonding to a carbon atom in the organic group, wherein the organic group is not susceptible to hydrolysis.

公开(公告)号：US11986997B2

公开(公告)日：2024-05-21

申请号：US17052870

申请日：2019-03-21

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

Inventor： Alexey Kabalnov ,  Jacob Wright ,  Dennis J. Schissler ,  Thomas M. Sabo ,  Jesiska Tandy

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00

CPC classification number: B29C64/165 ,  B33Y10/00 ,  B33Y70/00

Abstract: Disclosed herein are kits, methods, systems, and compositions for threedimensional printing. In an example, disclosed herein is a multi-fluid kit for threedimensional printing comprising: a marking agent comprising a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range of from about 400 nm to about 780 nm; a first fusing agent; a second fusing agent different from the first fusing agent; and a detailing agent.