公开(公告)号：US11905410B2

公开(公告)日：2024-02-20

申请号：US17298909

申请日：2019-06-10

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

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

IPC: B33Y10/00 ,  B33Y70/00 ,  B29C64/165 ,  C08L77/02 ,  C08K7/14 ,  B22F1/10 ,  B29K509/08

CPC classification number: C08L77/02 ,  B22F1/10 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C08K7/14 ,  B29K2509/08 ,  B22F2999/00 ,  B22F1/10 ,  B22F3/1003

Abstract: A three-dimensional printing formulation can include polymeric powder. The polymeric powder can include high aspect ratio composite particles including glass fibers coated with an encapsulating polymer in an amount from about 5 wt % to about 80 wt % based on a total weight of the polymeric powder, and low aspect ratio filler particles in an amount from about 20 wt % to about 95 wt % based on a total weight of the polymeric powder. The high aspect ratio composite particles can have an aspect ratio from about 7:1 to about 30:1 and the low aspect ratio filler particles can have an aspect ratio from 1:1 to less than 7:1.

公开(公告)号：US11426931B2

公开(公告)日：2022-08-30

申请号：US16605546

申请日：2018-07-31

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

Inventor： Kenneth Flack ,  Erica Fung ,  Carolin Fleischmann ,  Jesiska Tandy ,  Carmina Querol Esparch ,  Greg S. Long ,  Ali Emamjomeh ,  Shannon Reuben Woodruff ,  Rachael Donovan

IPC: B33Y70/00 ,  B29C64/165 ,  B33Y10/00 ,  B29K23/00 ,  B29K77/00 ,  B29K105/00

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 semi-crystalline or amorphous thermoplastic polymer having a predicted total dimension change during 3D printing ranging from about −4% to about 9%. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the semi-crystalline or amorphous thermoplastic polymer in the at least the portion. The fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm; or the fusing agent is a primer fusing agent and the energy absorber has absorption at wavelengths ranging from 800 nm to 4000 nm and has transparency at wavelengths ranging from 400 nm to 780 nm.

公开(公告)号：US20220112357A1

公开(公告)日：2022-04-14

申请号：US17298909

申请日：2019-06-10

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

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

IPC: C08K7/14 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/165

Abstract: A three-dimensional printing formulation can include polymeric powder. The polymeric powder can include high aspect ratio composite particles including glass fibers coated with an encapsulating polymer in an amount from about 5 wt % to about 80 wt % based on a total weight of the polymeric powder, and low aspect ratio filler particles in an amount from about 20 wt % to about 95 wt % based on a total weight of the polymeric powder. The high aspect ratio composite particles can have an aspect ratio from about 7:1 to about 30:1 and the low aspect ratio filler particles can have an aspect ratio from 1:1 to less than 7:1.

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：US11590696B2

公开(公告)日：2023-02-28

申请号：US16603957

申请日：2018-06-25

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

Inventor： Carolin Fleischmann ,  Erica Fung ,  Jesiska Tandy ,  Greg S. Long ,  Ali Emamjomeh ,  Shannon Reuben Woodruff ,  Rachael Donovan ,  Kenneth Flack ,  Carmina Querol Esparch

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D177/00 ,  C09D175/04 ,  B29K75/00 ,  B29K77/00

Abstract: An example of a three-dimensional (3D) printing composition 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 one of: (i) a thermoplastic elastomer having a flow parameter characterized by a consolidation resistance value ranging from about 8 to about 30, and a tap density characterized by an n1/2 value ranging from 5 taps to 30 taps; or (ii) a polyamide-like material having a flow parameter characterized by a consolidation resistance value ranging from about 75 to about 120, and a tap density characterized by an n1/2 value ranging from 5 taps to 30 taps. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the thermoplastic elastomer or the polyamide-like material in the at least the portion.

公开(公告)号：US20220379554A1

公开(公告)日：2022-12-01

申请号：US17864903

申请日：2022-07-14

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

Inventor： Kenneth Flack ,  Erica Fung ,  Carolin Fleischmann ,  Jesiska Tandy ,  Carmina Querol Esparch ,  Greg S. Long ,  Ali Emamjomeh ,  Shannon Reuben Woodruff ,  Rachael Donovan

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

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 semi-crystalline or amorphous thermoplastic polymer having a predicted total dimension change during 3D printing ranging from about −4% to about 9%. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the semi-crystalline or amorphous thermoplastic polymer in the at least the portion. The fusing agent is a core fusing agent and the energy absorber has absorption at least at wavelengths ranging from 400 nm to 780 nm; or the fusing agent is a primer fusing agent and the energy absorber has absorption at wavelengths ranging from 800 nm to 4000 nm and has transparency at wavelengths ranging from 400 nm to 780 nm.

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.

公开(公告)号：US20220126507A1

公开(公告)日：2022-04-28

申请号：US17298889

申请日：2019-07-16

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Cory J. Ruud ,  Vladek Kasperchik ,  Jesiska Tandy ,  Kevin P. DeKam

IPC: B29C64/165 ,  B33Y10/00 ,  C09D11/108 ,  B33Y70/00 ,  C09D11/104 ,  C09D11/037 ,  C09D11/107 ,  B33Y30/00 ,  B29K509/02

Abstract: The present disclosure is drawn to three-dimensional printing kits, methods of making magnetic three-dimensional printed articles, and systems for three-dimensional printing. In one example, a three-dimensional printing kit can include a powder bed material, a fusing agent, and a magnetic agent. The powder bed material can include polymer particles. The fusing agent can include water and a non-magnetic radiation absorber. The non-magnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The magnetic agent can include a dispersion of magnetic nanoparticles.

公开(公告)号：US10913205B2

公开(公告)日：2021-02-09

申请号：US16074492

申请日：2016-12-08

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

Inventor： Yi Feng ,  Jesiska Tandy ,  Rachael Donovan

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  B29C64/165 ,  B33Y70/00 ,  B29C64/314 ,  B33Y40/00 ,  B33Y10/00 ,  B29C64/153 ,  B33Y30/00 ,  B29C64/20 ,  B29K77/00 ,  B29K105/00

Abstract: A material set can include a powder bed material, including a polymer powder and a fusing agent. The polymer powder can have a particle size distribution having the following profile: D10 of 30 μm or more, D50 from 50 μm to 65 μm, and D90 of 100?m or less. Other parameters can include a melting point from 100° C. to 300° C., a processing window temperature of 20° C. or more, an energy density absorption of 20% or less, and a melt flow index from 10 cc to 80 cc at 10 minutes. The fusing agent can include an energy absorber capable of absorbing electromagnetic radiation to produce heat.

公开(公告)号：US11986997B2

公开(公告)日：2024-05-21

申请号：US17052870

申请日：2019-03-21

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

Inventor： Alexey Kabalnov ,  Jacob Wright ,  Dennis J. Schissler ,  Thomas M. Sabo ,  Jesiska Tandy

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

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

Abstract: Disclosed herein are kits, methods, systems, and compositions for threedimensional printing. In an example, disclosed herein is a multi-fluid kit for threedimensional printing comprising: a marking agent comprising a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range of from about 400 nm to about 780 nm; a first fusing agent; a second fusing agent different from the first fusing agent; and a detailing agent.