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公开(公告)号：WO2023086080A1
公开(公告)日：2023-05-19
申请号：PCT/US2021/058743
申请日：2021-11-10
发明人： HARTMAN, Aja , TASTL, Ingeborg , NAUKA, Krzysztof
IPC分类号： B29C64/165 , B29C64/20 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B33Y80/00
摘要： In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a build material distribution device to deposit a layer of a powder build material and an agent distribution system. The agent distribution system is to deposit on top of the layer of powder build material 1) a light-transmissive ultraviolet (UV) fusing agent in a pattern of a slice of a three-dimensional (3D) object to be formed and 2) an opacifying agent to selectively opacify regions of the 3D object to be formed. The additive manufacturing system also includes a UV energy source to, in combination with the light-transmissive UV fusing agent deposited, selectively melt portions of the layer of powder build material. A controller of the additive manufacturing system determines values of the parameters for the opacifying agent deposition to achieve a target opacity.
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公开(公告)号：WO2022271177A1
公开(公告)日：2022-12-29
申请号：PCT/US2021/038901
申请日：2021-06-24
发明人： HARTMAN, Aja , NIU, Michelle , OLUBUMMO, Adekunle , WYCOFF, Kyle , NAUKA, Krzysztof , DISCEKICI, Emre Hiro
IPC分类号： B29C64/165 , B33Y10/00 , B33Y70/00
摘要： A three-dimensional printing kit for forming lens elements can include a build material including from about 80 wt% to 100 wt% thermoplastic polyamide elastomeric particles having a D50 particle size from about 10 μm to about 150 μm, and a fusing agent including a liquid vehicle and from about 0.5 wt% to about 20 wt% of a UV radiation absorber.
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公开(公告)号：WO2022256015A1
公开(公告)日：2022-12-08
申请号：PCT/US2021/035795
申请日：2021-06-03
发明人： WILSON, Karsten N. , DISCEKICI, Emre Hiro , KASPERCHIK, Vladek , WEBER, Timothy L. , KOWALSKI, Mark , CHAFFINS, Sterling , MOUREY, Devin Alexander
IPC分类号： B29C64/165 , B33Y10/00 , B33Y70/10 , B33Y80/00
摘要： A method of three-dimensional printing can include iteratively applying a polymer build material as individual layers to a powder bed, where the polymer build material includes from about 80 wt% to 100 wt% polymeric particles, and based on a three-dimensional object model, selectively applying a coalescing agent onto individual layers of the polymer build material. The coalescing agent can include an aqueous liquid vehicle and a coalescing solvent that depresses a melting point of the polymeric particles. The method can include exposing the powder bed to heat to selectively coalesce portions of individual layers of the polymer build material in contact with the coalescing solvent. The heat may not be sufficient to coalesce the polymer build material that is not in contact with the coalescing solvent and may be sufficient to fuse the polymeric particles in contact with the coalescing solvent together to form a three-dimensional object.
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4.发明申请
公开(公告)号：WO2022248586A1
公开(公告)日：2022-12-01
申请号：PCT/EP2022/064272
申请日：2022-05-25
发明人： GALDEN, Daniel
IPC分类号： B29C64/135 , B29C64/393 , B29C64/165 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B33Y80/00
摘要： Die Erfindung betrifft eine Vorrichtung (12) zum Erzeugen einer 3D-Struktur (30), umfassend: • einen Magnetfeldgenerator (14) zum Erzeugen eines statischen Magnetfeldes B0 in einem Arbeitsbereich (26) der Vorrichtung (12), in dem eine Polymervorstufe (28) umfassend zumindest eine paramagnetische Substanz (32) anordenbar ist; • Gradientenspulen (18) zum Erzeugen von magnetischen Gradientenfeldern in allen drei Raumrichtungen x, y, z, mittels derer die paramagnetische Substanz (32) in einem definierten Voxel V der Polymervorstufe (28) ortscodierbar ist; • einen Hochfrequenz- (HF-) Feldgenerator (20) zum Einstrahlen von HF-Strahlung (42) in den Arbeitsbereich (26); und • eine Steuerungseinheit (22), die dazu eingerichtet ist, den HF- Feldgenerator (20) derart anzusteuern, dass die ortskodierte paramagnetische Substanz (32) im dem Voxel V mittels einer auf die paramagnetische Substanz (32) abgestimmten Feldfrequenz der HF- Strahlung (42) anregbar ist, um die Polymerisation der Polymervorstufe (28) in dem definierten Voxel V auszulösen. Die Erfindung betrifft darüber hinaus ein System, Verwendungen der Vorrichtung und des Systems sowie ein Verfahren zum Erzeugen der 3D-Struktur.
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公开(公告)号：WO2022174078A1
公开(公告)日：2022-08-18
申请号：PCT/US2022/016181
申请日：2022-02-11
发明人： PIERRE, Brennal , SHAH, Vandan K. , CHIN, William
IPC分类号： A61F2/28 , A61F2/30 , B29C64/165
摘要： This invention provides ink particles comprising a) a core comprising a coloring agent and a polymer, and b) an outermost layer comprising a surfactant or a dispersant, wherein the core further comprises an outer surface and the outermost layer at least partially covers the outer surface of the core. The invention further provides ink particles comprising a) a core comprising a coloring agent, b) a shell, and c) an outermost layer comprising a surfactant or a dispersant, wherein: the core or the shell comprises a polymer, wherein the polymer is polycaprolactone (PCL), poly D-lactic acid (PDLA), poly L-lactic acid (PLLA), poly(lactic-co-glycolic acid), (PLGA), polyethylene glycol (PEG), polyethylene glycol - diacrylate (PEGDA), poly(sebacic anhydride) (poly(SA)), polyorthoester, aliphatic polyanhydride, aromatic polyanhydride, or a copolymer thereof; the core further comprises an outer surface; the shell at least partially covers the outer surface of the core; the shell further comprises an outer surface; and the outermost layer at least partially covers the outer surface of the shell. The invention also provides a composition of the ink particles and a liquid carrier or a kit comprising the ink particles and a liquid carrier, and methods of using the composition and the kit for use in a method for tattooing a subject.
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公开(公告)号：WO2022150043A1
公开(公告)日：2022-07-14
申请号：PCT/US2021/012663
申请日：2021-01-08
IPC分类号： B29C64/165 , B33Y10/00 , B33Y70/10 , B33Y80/00
摘要： A three-dimensional printing kit can include a build material, a fusing agent, and a flame retardant. The build material can include polyamide particles. The fusing agent can include a radiation absorber to generate heat from absorbed electromagnetic radiation and an aqueous liquid vehicle including water. The flame retardant can include 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide. The flame retardant can be included at from about 5 wt% to about 30 wt% in the fusing agent, at from about 5 wt% to about 30 wt% in a flame retardant agent if present that is separate from the fusing agent, or at from about 5 wt% to about 30 wt% in the fusing agent and from about 5 wt% to about 30 wt% in the flame retardant agent.
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公开(公告)号：WO2022136717A1
公开(公告)日：2022-06-30
申请号：PCT/ES2021/070919
申请日：2021-12-22
申请人： UNIVERSIDAD DE CÁDIZ
IPC分类号： B29C64/165 , B33Y70/10
摘要： Material para uso en estereolitografía y procedimiento de obtención. La invención se refiere a un material compuesto, basado en una resina fotocurable con corcho como aditivo y cuya composición es susceptible de ser usada en técnicas de impresión 3D por estereolitografía. La principal característica de la invención es que usando polvo de corcho finamente dividido como aditivo a la matriz polimérica fotocurable, esta no pierde su capacidad de ser fotocurada y procesable mediante la técnica mencionada. El procedimiento comprende la molturación del corcho, su cribado por tamaños, la mezcla en diferentes porcentajes con la matriz polimérica fotocurable y su procesado mediante la técnica de estereolitografía. Este procedimiento permite el uso del polvo de corcho, considerado tradicionalmente como un residuo sin apenas uso en la industria del corcho, como material tecnológico para impresión 3D por estereolitografía, aprovechando las propiedades del corcho en el diseño de nuevos materiales compuestos para fabricación aditiva.
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8.发明申请
公开(公告)号：WO2022098613A1
公开(公告)日：2022-05-12
申请号：PCT/US2021/057644
申请日：2021-11-02
IPC分类号： B29C64/165 , B33Y10/00 , B33Y70/00 , G21F5/008
摘要： Additive manufacturing compositions include low-absorbing particles or non-absorbing particles that have an absorbance for wavelengths of 300 nm to 700 nm that is equal to or greater than 0 Au and is less 1.0 Au, such as 0.001 Au ≤ absorbance ≤ 0.7 Au. Slurries including such particles and an uranium-containing particle and that are used in additive manufacturing processes have an increased penetration depth for curative radiation. Removal of low-absorbing particles or non-absorbing particles during post-processing of as-manufactured products results in pores that create porosity in the as-manufactured product that provide a volume accommodating fission gases and/or can enhance wicking of certain heat pipe coolant liquids. Low-absorbing particles or non-absorbing particles can be functionalized for improved properties, for example, with fissionable material for improved ceramic yields, with burnable poisons or stabilizers for increased homogeneity, with stabilizers for localized delivery of the stabilizer, or with combinations thereof.
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公开(公告)号：WO2022093235A1
公开(公告)日：2022-05-05
申请号：PCT/US2020/057976
申请日：2020-10-29
IPC分类号： B29C64/165 , B33Y10/00 , B33Y70/10 , B82Y30/00
摘要： An example of a kit for three-dimensional (3D) printing includes an ultraviolet (UV) light fusing agent and a detailing agent. The UV light fusing agent including an aqueous vehicle and a plasmonic metal nanoparticle that i) provides absorption enhancement at radiation wavelengths ranging from about 340 nm to about 450 nm, and ii) is present in an amount up to 2 wt% based on a total weight of the UV light fusing agent. The detailing agent includes a surfactant, a co-solvent, and water.
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公开(公告)号：WO2022091978A1
公开(公告)日：2022-05-05
申请号：PCT/JP2021/039127
申请日：2021-10-22
申请人： 住友化学株式会社 , 国立大学法人東京工業大学
IPC分类号： C08L101/14 , B33Y80/00 , C04B35/111 , B29C64/165 , C08K3/22 , B33Y70/00 , C01F7/021
摘要： 粒子組成物は、αアルミナ粒子と、吸水性ポリマー粒子と、を備える。吸水性ポリマー粒子の含有量は、αアルミナ粒子１００質量部に対して、２質量部以上６０質量部以下であり、粒子組成物中の前記αアルミナ粒子の含有量が５０質量％以上である。
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