公开(公告)号：US20240424730A1

公开(公告)日：2024-12-26

申请号：US17298919

申请日：2019-06-10

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

Inventor： Jesiska Tandy ,  Stanely J. Kozmiski ,  Alay Yemane

IPC: B29C64/165 ,  B29K23/00 ,  B29K75/00 ,  B29K77/00 ,  B29K105/00 ,  B29K105/12 ,  B29K309/08 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10

Abstract: A materials kit for three-dimensional (3D) printing can include a powder bed material including from about 60 wt % to 100 wt % composite fibers including glass fibers coated with an encapsulating polymer, wherein the composite fibers have an average length of from about 100 μm to about 700 μm and an average diameter of from about 20 μm to about 70 μm. The materials kit for 3D printing can also include a fusing agent including an energy absorber to absorb electromagnetic radiation to produce heat.

公开(公告)号：US20240246289A1

公开(公告)日：2024-07-25

申请号：US18289702

申请日：2021-05-17

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Alay Yemane

IPC: B29C64/165 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y70/00

CPC classification number: B29C64/165 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y70/00

Abstract: The present disclosure describes three-dimensional printing kits, methods of making three-dimensional printed objects, and three-dimensional printing systems. In one example, a three-dimensional printing kit can include a power bed material including thermoplastic polymer particles, a fusing agent to selectively apply to the powder bed material, and a post-processing agent to apply to a three-dimensional printed object. The fusing agent can include water and a radiation absorber that absorbs radiation and converts the radiation energy to heat. The post-processing agent can include a curable epoxy resin, where the epoxy resin, when cured, has a higher elastic modulus than the thermoplastic polymer particles.

公开(公告)号：US20220339862A1

公开(公告)日：2022-10-27

申请号：US17859922

申请日：2022-07-07

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

Inventor： Carolin Fleischmann ,  Hector Lebron ,  Yi Feng ,  Jesiska Tandy ,  Alay Yemane ,  Ali Emamjomeh

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/322 ,  C09D11/324

Abstract: The present disclosure relates to a composition for printing a three-dimensional object. The composition comprises composite particles comprising a thermoplastic polymer and a colour-masking pigment. The colour-masking pigment is encapsulated by the thermoplastic polymer and is present in an amount of from about 1.5 to less than about 6 wt % of the total weight of the composite particles.

公开(公告)号：US12146066B2

公开(公告)日：2024-11-19

申请号：US17297073

申请日：2019-08-09

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Alay Yemane

IPC: B33Y10/00 ,  B29B7/90 ,  B29C64/165 ,  B29C64/314 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y70/10 ,  C09D11/037 ,  C09D11/102 ,  C09D11/322 ,  C09D11/34 ,  B29K467/00 ,  B29K505/00

Abstract: This disclosure describes three-dimensional printing kits, methods, and systems for three-dimensional printing with directionally-dependent reflective particles. In one example, a three-dimensional printing kit can include a powder bed material and a fusing agent to selectively apply to the powder bed material. The powder bed material can include polymer particles and directionally-dependent reflective particles. The directionally-dependent reflective particles can be chemically and thermally stable at a melting point temperature of the polymer particles. The fusing agent can include water and a radiation absorber to absorb radiation energy and convert the radiation energy to heat.

公开(公告)号：US20240239043A1

公开(公告)日：2024-07-18

申请号：US18289839

申请日：2021-06-02

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Alay Yemane ,  Graciela Emma Negri Jimenez ,  Mark Kowalski ,  Carolin Fleischmann

IPC: B29C64/165 ,  B29C64/35 ,  B29K77/00 ,  B29K105/00 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10

CPC classification number: B29C64/165 ,  B29C64/35 ,  B33Y40/20 ,  B33Y70/10 ,  B29K2077/00 ,  B29K2105/005 ,  B29K2995/0072 ,  B33Y10/00

Abstract: A three-dimensional printed object can include a fused polyamide body having electromagnetic radiation absorber embedded as particles within the fused polyamide body, and the three-dimensional printed object can further include residual benzyl alcohol soaked into a surface of the polyamide body.

公开(公告)号：US20220274328A1

公开(公告)日：2022-09-01

申请号：US17637475

申请日：2019-10-15

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

Inventor： Jesiska Tandy ,  Emre Hiro Discekici ,  Ali Emamjomeh ,  Alay Yemane ,  Rachael Donovan

IPC: B29C64/165 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y70/00

Abstract: Three-dimensional printing kits can include a powder bed material and a fusing agent to selectively apply to the powder bed material. The powder bed material can include polymer build particles and cellulose particles. The cellulose particles can be chemically and thermally stable at a melting point temperature of the polymer build particles. The fusing agent can include water and a radiation absorber to absorb radiation energy and convert the radiation energy to heat.

公开(公告)号：US11413816B2

公开(公告)日：2022-08-16

申请号：US16964406

申请日：2018-03-20

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

Inventor： Carolin Fleischmann ,  Hector Lebron ,  Yi Feng ,  Jesiska Tandy ,  Alay Yemane ,  Ali Emamjomeh

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/322 ,  C09D11/324

Abstract: The present disclosure relates to a composition for printing a three-dimensional object. The composition comprises composite particles comprising a thermoplastic 5 polymer and a colour-masking pigment. The colour-masking pigment is encapsulated by the thermoplastic polymer and is present in an amount of from about 1.5 to less than about 6 wt % of the total weight of the composite particles.

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：US20230081047A1

公开(公告)日：2023-03-16

申请号：US17799768

申请日：2020-03-11

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Mariya Gelman ,  Jesiska Tandy ,  Alay Yemane

IPC: C08K5/25 ,  B33Y70/00 ,  B29C64/165 ,  B29C64/357 ,  B33Y40/00 ,  B29C64/314 ,  B33Y10/00

Abstract: A three-dimensional printing kit can include a polymeric build material including from about 80 wt % to 100 wt % polymer particles having an average particle size from about 10 μm to about 150 μm and from about 0.01 wt % to about 2 wt % dihydrazide, and a fusing agent formulation including an aqueous liquid vehicle and a radiation absorber.

公开(公告)号：US20220267630A1

公开(公告)日：2022-08-25

申请号：US17629009

申请日：2019-09-06

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

Inventor： Erica Fung ,  Rachael Donovan ,  Jesiska Tandy ,  Shannon Reuben Woodruff ,  Emre Hiro Discekici ,  Graciela Emma Negri Jimenez ,  Alay Yemane

IPC: C09D11/50 ,  C09D11/322 ,  C09D11/328 ,  C09D11/102 ,  C09D11/037 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00

Abstract: A three-dimensional printing kit can include a powder bed material and a fusing agent to selectively apply to the powder bed material. The powder bed material can include polymer particles and a thermochromic additive. The thermochromic additive can be chemically stable at a melting point temperature of the polymer particles, and the thermochromic additive can exhibit a color change at a color transition temperature that is below the melting point of the polymer particles. The fusing agent can include water and a radiation absorber to absorb radiation energy and convert the radiation energy to heat.