公开(公告)号：US10786950B2

公开(公告)日：2020-09-29

申请号：US15763167

申请日：2016-01-29

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

Inventor： Pavel Kornilovich ,  Vladek Kasperchik ,  Michael G. Monroe

IPC: B29C67/24 ,  C08K7/28 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/165 ,  C08K3/013 ,  C08L77/02 ,  C08K3/22 ,  B33Y70/00 ,  B33Y50/02 ,  B29C67/00

Abstract: A three-dimensional (3D) printing composite build material composition includes a polymer particle and an inorganic particle. The polymer particle is an aliphatic polyamide. The inorganic particle has an average particle size ranging from about 1 μm to about 100 μm. A mass ratio of the polymer particle to the inorganic particle in the composite build material composition ranges from about 5:2 to about 1:3.

公开(公告)号：US10696859B2

公开(公告)日：2020-06-30

申请号：US15741973

申请日：2015-09-15

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

Inventor： Vladek Kasperchik ,  Alexey S. Kabalnov ,  David Michael Ingle

IPC: C09D11/00 ,  C09D11/54 ,  B41M5/00 ,  C09D11/322 ,  C09D11/38 ,  C09D11/106 ,  B41M7/00 ,  C09D11/033 ,  C09D11/037 ,  C09D11/08 ,  C09D11/107

Abstract: A white ink can include an aqueous liquid vehicle, from 5 wt % to 70 wt % of a white metal oxide pigment having an average primary particle size from 5 nm to less than 100 nm, and from 0.005 to 10 wt % dispersant associated with a surface of the white metal oxide pigment. The white ink can also include from 2 wt % to 30 wt % core-shell latex particulates.

公开(公告)号：US10465085B2

公开(公告)日：2019-11-05

申请号：US15562618

申请日：2015-07-20

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

Inventor： Vladek Kasperchik ,  Paul Joseph Bruinsma ,  Marcos A. Barreto

IPC: C09D11/00 ,  C09D11/54 ,  C09D11/322 ,  C09C1/36 ,  C09D11/037 ,  C09D11/102 ,  C09D11/107

Abstract: The present disclosure provides an example where a white ink can include an aqueous ink vehicle and from 5 wt % to 60 wt % of a white flocculated colorant mass. The white flocculated colorant mass can include white metal oxide pigment, an alumina coating, and polymeric dispersant associated with a surface of the alumina-coated pigment. The white metal oxide pigment can have an average particulate size from 100 nm to 2,000 nm. The alumina coating on the white metal oxide pigment can form an alumina-coated pigment where the alumina coating is predominantly alumina, and the white metal oxide pigment content to alumina content can be from 99:1 to 9:1 by weight.

公开(公告)号：US10414933B2

公开(公告)日：2019-09-17

申请号：US15544219

申请日：2015-04-27

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

Inventor： Vladek Kasperchik ,  Thomas W. Butler ,  Paul Joseph Bruinsma

IPC: C09D11/38 ,  C09D11/107 ,  C09D11/322 ,  C09D11/326 ,  C09D11/54 ,  C09D11/106

Abstract: The present disclosure provides a white ink including an aqueous ink vehicle, from 5 wt % to 50 wt % of a white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, from 0.1 wt % to 4 wt % of anionic oxide particulates having an average particulate size from 1 nm to 100 nm, from 2 wt % to 30 wt % of latex particulates having a glass transition temperature from 0 C. to 130 C., and a non-ionic or predominantly non-ionic dispersant having an acid number not higher than 100 mg KOH/g based on dry polymer weight. The white metal oxide pigment and anionic oxide particulates are present in the white ink at a weight ratio from 5:1 to 200:1.

公开(公告)号：US20180361618A1

公开(公告)日：2018-12-20

申请号：US15771561

申请日：2016-02-26

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik ,  David A. Champion

IPC: B28B1/00 ,  B29C64/165 ,  B29C64/291 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

Abstract: In a three-dimensional printing method example, a build material is applied. A first liquid functional material is applied on at least a portion of the build material. The first liquid functional material includes ferromagnetic nanoparticles that are selected from the group consisting of an iron oxide, a ferrite, a combination of the iron oxide and a ferromagnetic metal oxide, and combinations thereof. The build material is exposed to electromagnetic radiation having a frequency ranging from about 5 kHz to about 300 GHz to sinter the portion of the build material in contact with the first liquid functional material.

公开(公告)号：US20180272561A1

公开(公告)日：2018-09-27

申请号：US15763193

申请日：2015-11-20

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

Inventor： Vladek Kasperchik ,  Michael G. Monroe ,  Pavel Kornilovich ,  David A. Champion

IPC: B28B1/00 ,  C04B35/64 ,  C04B35/63 ,  C04B35/636 ,  C04B35/638

CPC classification number: B28B1/001 ,  B28B7/465 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  C04B35/6316 ,  C04B35/634 ,  C04B35/636 ,  C04B35/638 ,  C04B35/64

Abstract: In a three-dimensional printing method example, build material granules are applied. Each of the build material granules includes uncoated, primary ceramic particles agglomerated together by a binder that is soluble in a primary solvent of a fusing agent. The fusing agent is selectively applied on at least a portion of the build material granules. The binder dissolves and a green body including a slurry of the uncoated, ceramic particles is created.

公开(公告)号：US20180272560A1

公开(公告)日：2018-09-27

申请号：US15763183

申请日：2016-01-28

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik

IPC: B28B1/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B28B17/00 ,  B29C64/165 ,  B29C64/20 ,  B29C64/393

CPC classification number: B28B1/001 ,  B28B17/0081 ,  B29C64/165 ,  B29C64/20 ,  B29C64/393 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00

Abstract: In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A detailing agent fluid is applied to a portion of the ceramic build material. The detailing agent fluid includes a cationic polymer. A liquid functional material, including an anionically stabilized susceptor material, is applied to another portion of the ceramic build material that is in contact with the portion of the ceramic build material having the detailing agent fluid thereon, such that at least some of the anionically stabilized susceptor material reacts with at least some of the cationic polymer that is in contact therewith to prevent spreading of the anionically stabilized susceptor material.

公开(公告)号：US20180194959A1

公开(公告)日：2018-07-12

申请号：US15741973

申请日：2015-09-15

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

Inventor： Vladek Kasperchik ,  Alexey S. Kabalnov ,  David Michael Ingle

IPC: C09D11/54 ,  C09D11/037 ,  C09D11/033 ,  C09D11/08 ,  C09D11/107 ,  C09D11/322 ,  B41M5/00 ,  B41M7/00

CPC classification number: C09D11/54 ,  B41M5/0017 ,  B41M5/0023 ,  B41M5/0047 ,  B41M5/0064 ,  B41M7/0018 ,  B41M7/009 ,  C09D11/033 ,  C09D11/037 ,  C09D11/08 ,  C09D11/106 ,  C09D11/107 ,  C09D11/322 ,  C09D11/38

Abstract: A white ink can include an aqueous liquid vehicle, from 5 wt % to 70 wt % of a white metal oxide pigment having an average primary particle size from 5 nm to less than 100 nm, and from 0.005 to 10 wt % dispersant associated with a surface of the white metal oxide pigment. The white ink can also include from 2 wt % to 30 wt % core-shell latex particulates.

公开(公告)号：US20180100078A1

公开(公告)日：2018-04-12

申请号：US15561314

申请日：2015-07-20

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

Inventor： Vladek Kasperchik ,  Paul Joseph Bruinsma ,  Marcos A. Barreto

IPC: C09D11/322 ,  C09C1/36 ,  C09D11/54

Abstract: The present disclosure provides an example of a white ink. The ink includes an aqueous ink vehicle and from 5 wt % to 60 wt % of a white flocculated colorant mass. The white flocculated colorant mass can include white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, silica coated on the white metal oxide pigment to form a silica-coated pigment, and a polymeric dispersant associated with a surface of the silica-coated pigment.

公开(公告)号：US20170369722A1

公开(公告)日：2017-12-28

申请号：US15544301

申请日：2015-04-27

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

Inventor： Paul Joseph Bruinsma ,  Vladek Kasperchik ,  Thomas W. Butler

IPC: C09D11/322 ,  C09D11/107 ,  C09D11/03

CPC classification number: C09D11/322 ,  C09D11/03 ,  C09D11/102 ,  C09D11/107 ,  C09D11/326 ,  C09D11/54

Abstract: The present disclosure provides a white ink including an aqueous ink vehicle, from 5 wt % to 50 wt % of a white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, from 0.02 wt % to 2 wt % of an anionic low molecular weight polymer having a weight average molecular weight of 3,000 Mw to 50,000 Mw and an acid number higher than 100 mg KOH/g based on dry polymer weight, and from 2 wt % to 30 wt % of latex particulates having a glass transition temperature from 0 C to 130 C. Furthermore, the white metal oxide pigment is dispersed by a non-ionic or predominantly non-ionic dispersant having an acid number not higher than 100 mg KOH/g based on dry polymer weight.