公开(公告)号：US11718024B2

公开(公告)日：2023-08-08

申请号：US17561059

申请日：2021-12-23

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

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B29K67/00 ,  B29K77/00

CPC classification number: B29C64/165 ,  B33Y70/00 ,  B29K2067/04 ,  B29K2077/00 ,  B33Y10/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.

公开(公告)号：US11427720B2

公开(公告)日：2022-08-30

申请号：US16490917

申请日：2017-11-17

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

Inventor： Carolin Fleischmann ,  Rachael Donovan ,  Shannon Reuben Woodruff ,  Yi Feng

IPC: B33Y70/00 ,  C09D11/102 ,  B33Y10/00 ,  B29C64/165 ,  C09D11/30 ,  B29K77/00

Abstract: Compositions including polyamides and methods of employing compositions including polyamides are described herein. For instance, composition for three-dimensional (3D) printing can include a polymer build material comprising of at least two polyamides including a first polyamide and a second polyamide, where the first polyamide is present in an amount ranging of from about 95% to about 99% of a total weight of the polymer build material and where the second polyamide is present in an amount ranging of from about 1% to about 5% of the total weight of the polymer build material.

公开(公告)号：US20210138724A1

公开(公告)日：2021-05-13

申请号：US16605113

申请日：2018-03-23

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

Inventor： Rachael Donovan ,  Yi Feng ,  Michael A. Novick ,  Bernardo A. Gutierrez ,  Mariya Gelman ,  Geoffrey Schmid ,  Carolin Fleischmann

IPC: B29C64/165 ,  B29C64/268 ,  B29C64/314 ,  B33Y70/00 ,  B29C64/218

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 polyether block amide polymer. The fusing agent includes an energy absorber to absorb electromagnetic radiation to melt or fuse the at least a portion of the polyether block amide polymer.

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：US10576685B2

公开(公告)日：2020-03-03

申请号：US15546567

申请日：2015-04-30

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

Inventor： Ali Emamjomeh ,  Keshava A. Prasad ,  Alexey S. Kabalnov ,  Yi Feng ,  Winthrop Childers

IPC: B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/165 ,  B22F3/10 ,  B22F3/00 ,  B29C64/393

Abstract: A three-dimensional (3D) printing method includes applying a build material, including: a plurality of first reactive particles; a plurality of second reactive particles, the first and second reactive particles to react with each other upon contact there with; and a coating on i) the plurality of first reactive particles; or ii) the plurality of second reactive particles; or iii) both i) and ii). The coating is to isolate the plurality of first reactive from the plurality of second reactive particles. A fluid is selectively applied on a portion of the build material, the fluid disrupting the coating on the portion of the build material to render the first and second reactive particles in the portion of the build material in contact with each other. The contact initiates mutual reacting and fusing between the first and second reactive particles.

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：US20220111587A1

公开(公告)日：2022-04-14

申请号：US17561059

申请日：2021-12-23

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

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B29K67/00 ,  B29K77/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.

公开(公告)号：US10710301B2

公开(公告)日：2020-07-14

申请号：US16073289

申请日：2016-05-13

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

Inventor： Yi Feng ,  Erica Montei Fung

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y30/00 ,  B33Y80/00 ,  C08K3/04 ,  C08K3/08 ,  C08K7/20 ,  B29K105/16 ,  B29K77/00 ,  B29K105/00

Abstract: The present disclosure is drawn to material sets for 3-dimensional printing, 3-dimensional printing systems, and 3-dimensional printed parts. A material set can include a powder bed material of composite particles including glass beads coated with polyamide-12 polymer. The composite particles can have an average particle size from 20 μm to 200 μm, and the polyamide-12 polymer can include greater than 80 meq/g carboxylic end groups and less than 40 meq/g amino end groups. The fusing agent can include an energy absorber capable of absorbing electromagnetic radiation to produce heat.

公开(公告)号：US20180104894A1

公开(公告)日：2018-04-19

申请号：US15845850

申请日：2017-12-18

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

Inventor： Erica Fung ,  Yi Feng

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C08K3/04

CPC classification number: B29C64/165 ,  B29K2077/00 ,  B29K2105/0005 ,  B29K2105/005 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08K3/04

Abstract: Methods and compositions of three-dimensional printing are described herein. In an example, a method for three-dimensional printing can comprise: (i) a powder bed material being deposited, wherein the powder bed material comprises a polyimide-11 powder having an average particle size of from about 20 μm to about 120 μm, wherein the polyamide-11 powder has a solution viscosity of from about 1.75 to about 1.9 at 25° C. based on ASTM using m-cresol as solvent; (ii) a fusing agent being selectively applied on a first portion of the powder bed material, wherein the fusing agent comprises an energy absorber to absorb electromagnetic radiation (IR) to melt or fuse at least a portion of the polyamide-11 powder in areas covered by the fusing agent, and (iii) (i) and (ii) repeated at least once.

公开(公告)号：US20180022025A1

公开(公告)日：2018-01-25

申请号：US15546567

申请日：2015-04-30

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

Inventor： Ali Emamjomeh ,  Keshava A. Prasad ,  Alexey S. Kabalnov ,  Yi Feng ,  Winthrop Childers

IPC: B29C64/165 ,  B29C64/393 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/165 ,  B22F3/008 ,  B22F3/1039 ,  B29C64/20 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00

Abstract: A three-dimensional (3D) printing method includes applying a build material, including: a plurality of first reactive particles; a plurality of second reactive particles, the first and second reactive particles to react with each other upon contact there with; and a coating on i) the plurality of first reactive particles; or ii) the plurality of second reactive particles; or iii) both i) and ii). The coating is to isolate the plurality of first reactive from the plurality of second reactive particles. A fluid is selectively applied on a portion of the build material, the fluid disrupting the coating on the portion of the build material to render the first and second reactive particles in the portion of the build material in contact with each other. The contact initiates mutual reacting and fusing between the first and second reactive particles.