公开(公告)号：US20240246288A1

公开(公告)日：2024-07-25

申请号：US18289556

申请日：2021-05-10

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

Inventor： Emre Hiro Discekici ,  Geoffrey Schmid ,  Alay Yemane

IPC: B29C64/165 ,  B29C64/188 ,  B29C64/264 ,  B29C71/02 ,  B29K21/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20

CPC classification number: B29C64/165 ,  B29C64/188 ,  B29C64/264 ,  B29C71/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B29C2071/022 ,  B29K2021/003 ,  B29K2995/0094

Abstract: A three-dimensional printing system can include a build material including from about 95 wt % to 100 wt % of thermoplastic elastomer particles having a D50 particle size from about 2 μm to about 150 μm, and a printhead fluidly coupled to or fluidly coupleable to a fusing agent to selectively and iteratively eject the fusing agent onto successive placed individual layers thereof. The fusing agent can include water and a radiation absorber. The three-dimensional printing system can also include a radiant energy source positioned to expose the individual layers of the build material to radiation energy to selectively fuse the thermoplastic elastomer particles in contact with the radiation absorber to iteratively form a three-dimensional object including multiple layers of fused thermoplastic elastomer, and a heating device to heat the three-dimensional object to a temperature sufficient that layer-to-layer fusion at an interior location of the three-dimensional object is enhanced.

公开(公告)号：US11718024B2

公开(公告)日：2023-08-08

申请号：US17561059

申请日：2021-12-23

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

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B29K67/00 ,  B29K77/00

CPC classification number: B29C64/165 ,  B33Y70/00 ,  B29K2067/04 ,  B29K2077/00 ,  B33Y10/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.

公开(公告)号：US11117318B2

公开(公告)日：2021-09-14

申请号：US16489503

申请日：2017-11-30

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

Inventor： Shannon Reuben Woodruff ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B32B27/08 ,  B32B27/18 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y40/20 ,  B29C64/30 ,  B29K29/00 ,  B29K77/00 ,  B29K105/00

Abstract: In an example of a method for 3D printing, a polymeric or polymeric composite build material is applied. Some of the build material is negatively patterned to define a removable build material portion and a remaining build material portion. The negatively patterning includes selectively applying an anti-coalescing polymer solution including a polymer having a pendant reactive functional group, and selectively applying an anti-coalescing crosslinker solution including a multifunctional crosslinker. The pendant reactive functional group and the multifunctional crosslinker react to form an insoluble gel network among the polymeric or polymeric composite build material in the removable build material portion. Based on a 3D object model, a layer of a final 3D object is formed from at least some of the remaining build material portion. The some of the polymeric or polymeric composite build material in the removable build material portion remains physically separated from the layer.

公开(公告)号：US20210138724A1

公开(公告)日：2021-05-13

申请号：US16605113

申请日：2018-03-23

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

Inventor： Rachael Donovan ,  Yi Feng ,  Michael A. Novick ,  Bernardo A. Gutierrez ,  Mariya Gelman ,  Geoffrey Schmid ,  Carolin Fleischmann

IPC: B29C64/165 ,  B29C64/268 ,  B29C64/314 ,  B33Y70/00 ,  B29C64/218

Abstract: An example of a three-dimensional (3D) printing kit includes a build material composition and a fusing agent to be applied to at least a portion of the build material composition during 3D printing. The build material composition includes a polyether block amide polymer. The fusing agent includes an energy absorber to absorb electromagnetic radiation to melt or fuse the at least a portion of the polyether block amide polymer.

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：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：US20220111587A1

公开(公告)日：2022-04-14

申请号：US17561059

申请日：2021-12-23

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

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B29K67/00 ,  B29K77/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.

公开(公告)号：US10894356B2

公开(公告)日：2021-01-19

申请号：US16066820

申请日：2016-04-15

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

Inventor： Jake Wright ,  Ali Emamjomeh ,  Geoffrey Schmid

IPC: B29C64/188 ,  C09D1/00 ,  C09D7/40 ,  B24C1/04 ,  B24C11/00 ,  B29C71/00 ,  C09D127/18 ,  C09D123/28 ,  B33Y40/00

Abstract: In a coating method example, a coating is formed on a part precursor by blasting the part precursor with a blast medium. The blast medium includes blasting beads and a coating agent. The part precursor is formed from a polymeric build material, and a hardness of the blasting beads is greater than a hardness of the polymeric build material.

公开(公告)号：US12049041B2

公开(公告)日：2024-07-30

申请号：US18349161

申请日：2023-07-09

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

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00 ,  B29K67/00 ,  B29K77/00 ,  B33Y10/00

CPC classification number: B29C64/165 ,  B33Y70/00 ,  B29K2067/04 ,  B29K2077/00 ,  B33Y10/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.

公开(公告)号：US20230347587A1

公开(公告)日：2023-11-02

申请号：US18349161

申请日：2023-07-09

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

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00

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

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.