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公开(公告)号:US20210402469A1
公开(公告)日:2021-12-30
申请号:US17054556
申请日:2019-03-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Krzysztof Nauka , Vladek Kasperchik , Mohammed S. Shaarawi
Abstract: Described herein are kits, methods, and systems for printing metal three-dimensional objects. In an example, described is a multi-fluid kit for three-dimensional printing comprising: a first fluid comprising a first liquid vehicle comprising metal or metal precursor particles; and a second fluid comprising a second liquid vehicle comprising latex polymer particles dispersed therein, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm, and wherein the metal or metal precursor particles comprise metal nanoparticles, metal oxide nanoparticles, metal oxide nanoparticles and a reducing agent, or combinations thereof.
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公开(公告)号:US11130876B2
公开(公告)日:2021-09-28
申请号:US16080252
申请日:2017-02-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Stephen G. Rudisill , Alexey S. Kabalnov , Vladek Kasperchik
IPC: B29C64/112 , B41M5/00 , C09D11/40 , C09D11/38 , B29K83/00
Abstract: An example inkjet primer fluid includes an alkoxysilane, a surfactant, a co-solvent, and a balance of water; and is at least substantially colorless. In an example method, a primer fluid, including an alkoxysilane, a surfactant, a co-solvent, and a balance of water, is thermal inkjet printed from a thermal inkjet printhead to form a silicon dioxide film on a resistor. Then, a jettable composition, including suspended nanoparticles, is thermal inkjet printed from the thermal inkjet printhead. In another example method, suspended nanoparticles, an alkoxysilane, and a growth mediator are combined to form a mixture. The mixture is heated to a temperature ranging from about 60° C. to about 80° C. and stirred for about 12 hours to about 36 hours to form silicon dioxide coated, suspended nanoparticles. Then, a surfactant, a zwitterionic stabilizer, a co-solvent, and a balance of water are added to the mixture to form a stabilized, jettable composition.
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公开(公告)号:US11104069B2
公开(公告)日:2021-08-31
申请号:US16072144
申请日:2016-05-05
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Krzysztof Nauka , Vladek Kasperchik , Aja Hartman
IPC: B29C64/188 , B33Y30/00 , B33Y40/00 , B23K26/354 , B23K26/00 , B23K26/352 , B29C71/02 , B29C71/04 , B33Y10/00 , B33Y50/02 , B29C64/153 , B29C64/393 , B23K103/00
Abstract: According to an example, in a method, a radiation source that is to output radiation at a preset energy level onto a surface of a three-dimensional (3D) printed object may be activated. In addition, the radiation source may be deactivated after a predefined period of time sufficient to cause an outer portion of about a predetermined thickness of the surface of the 3D printed object to begin to melt to finish the surface of the 3D printed object.
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公开(公告)号:US11072088B2
公开(公告)日:2021-07-27
申请号:US15765088
申请日:2016-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Michael G Monroe , Vladek Kasperchik , Pavel Kornilovich , David A Champion
Abstract: According to an example, a three-dimensional (3D) printer may include a spreader to spread build material granules into a layer on a build area platform, a pressing die positioned above the layer of spread build material granules, in which the pressing die is to apply pressure onto the layer of build material granules to fragment the build material granules into primary particles to increase the density of the layer of build material granules, and a printhead to selectively deposit a fusing agent between the primary particles of the spread layer of build material granules.
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公开(公告)号:US10533106B2
公开(公告)日:2020-01-14
申请号:US15561712
申请日:2015-07-20
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Vladek Kasperchik , Paul Joseph Bruinsma , Thomas W. Butler
IPC: C09D11/54 , C09D11/106 , C09D11/322 , C09D11/38 , C09C1/00 , C09C1/04 , C09C1/36 , C09C3/06 , C09D11/326
Abstract: The present disclosure provides an example where a non-Newtonian white ink can include an aqueous ink vehicle, from 5 wt % to 60 wt % of white colorant, and from 0.1 wt % to 5 wt % of amphoteric alumina particles dispersed in the aqueous ink vehicle. The white colorant can include white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, an alumina coating on the white metal oxide pigment forming an alumina-coated pigment, and a polymeric dispersant associated with a surface of the alumina-coated pigment. The amphoteric alumina particles can have an average particles size from 2 nm to less than 100 nm.
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公开(公告)号:US20190270135A1
公开(公告)日:2019-09-05
申请号:US16412024
申请日:2019-05-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Vladek Kasperchik , Michael G. Monroe , Johnathon Holroyd
Abstract: A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 μm to about 20 μm. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.
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公开(公告)号:US20190240898A1
公开(公告)日:2019-08-08
申请号:US16325243
申请日:2016-10-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Sterling Chaffins , Cassady Sparks Roop , Kevin P DeKam , Vladek Kasperchik , Ali Emamjomeh , Johnathon Holroyd , Stephen G Rudisill , Alexey S Kabalnov
IPC: B29C64/153 , B29C64/336
CPC classification number: B29C64/153 , B29C64/336 , B29C70/882 , B29K2505/08 , B33Y10/00 , B33Y70/00 , C08K3/08 , C08K3/22 , C08K2003/0806 , C08K2003/0831 , C08K2003/085 , C08K2003/2258 , C08K2201/005 , C08K2201/011 , C08L67/04 , C08L77/02 , C09D11/322 , C09D11/40 , C09D11/52
Abstract: The present disclosure is drawn to material sets for 3-dimensional printing. The material set can include a thermoplastic polymer powder having an average particle size from 20 μm to 200 μm, a conductive fusing agent composition including a transition metal, and nonconductive fusing agent composition. The nonconductive fusing agent composition can include transition metal oxide bronze particles.
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18.
公开(公告)号:US20190054651A1
公开(公告)日:2019-02-21
申请号:US15771134
申请日:2016-02-25
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: James Elmer Abbott, Jr. , Vladek Kasperchik , Joshua Flynn
IPC: B28B1/00 , B28B7/46 , B33Y10/00 , B33Y70/00 , B33Y30/00 , C04B35/111 , C04B35/626 , C04B35/634 , C04B35/64
Abstract: In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A liquid functional material, including an anionically stabilized susceptor material, is applied to at least a portion of the ceramic build material. A sintering aid/fixer fluid, including a cationically stabilized amphoteric alumina particulate material, is applied to the at least the portion of the ceramic build material. The applied anionically stabilized susceptor material and the applied cationically stabilized amphoteric alumina particulate material react to immobilize the anionically stabilized susceptor material, thereby patterning the at least the portion of the ceramic build material.
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公开(公告)号:US20190009465A1
公开(公告)日:2019-01-10
申请号:US16064098
申请日:2016-04-13
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Michael G. Monroe , Vladek Kasperchik , David Michael Ingle
IPC: B29C64/165 , B28B1/00 , C04B35/64 , B29C64/214 , B29C64/218
CPC classification number: B29C64/165 , B28B1/001 , B29C64/214 , B29C64/218 , B29C67/00 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02 , B33Y70/00 , C04B35/64
Abstract: In a three-dimensional (3D) printing method example, build material granules are applied. Each of the build material granules includes a plurality of primary ceramic particles agglomerated together by a binder that is at least partially soluble in a primary solvent of a fusing agent. Pressure is applied to crush the build material granules. The fusing agent is selectively applied on at least a portion of the build material granules or the crushed build material granules to pattern the portion, and to introduce a latent binder to the portion. The application of the build material granules, the application of the pressure, and the selectively application of the fusing agent are repeated to create a green body. The latent binder is activated by heating the green body in order to produce a cured green body.
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公开(公告)号:US20180311892A1
公开(公告)日:2018-11-01
申请号:US15771592
申请日:2016-02-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: James Elmer Abbott, Jr. , Vladek Kasperchik
IPC: B29C64/165 , B41M5/00 , B41M7/00 , C04B35/111 , C04B35/626
CPC classification number: B33Y10/00 , B29C64/165 , B32B18/00 , B33Y70/00 , B41M5/0047 , B41M5/007 , B41M7/009 , C04B35/111 , C04B35/6264 , C04B35/632 , C04B2235/3262 , C04B2235/3274 , C04B2235/3275 , C04B2235/3277 , C04B2235/3418 , C04B2235/424 , C04B2235/5454 , C04B2235/5472 , C04B2235/549 , C04B2235/6026 , C04B2235/667 , C04B2235/9661 , C04B2237/34 , C04B2237/341 , C04B2237/343 , C09D11/322 , C09D11/38
Abstract: In a color printing method example, a dispersion is jetted on at least a portion of a surface of a substrate ceramic material to form a patterned area. The dispersion includes metal oxide nanoparticles. A color in the patterned area is selectively developed by heating at least the patterned area via exposure to energy. The heat initiates a reaction between the metal oxide nanoparticles and the substrate ceramic material to produce the color.
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