公开(公告)号：US11958982B2

公开(公告)日：2024-04-16

申请号：US17051922

申请日：2019-01-16

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

Inventor： James William Stasiak ,  Garry Hinch ,  Stanley J. Kozmiski

IPC: C09D11/037 ,  B29C64/153 ,  B29K509/02 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D11/106

CPC classification number: C09D11/037 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D11/106 ,  B29K2509/02 ,  B29K2995/0003

Abstract: A materials kit for three-dimensional (3D) printing can include a powder bed material including electroactive polymer particles including electroactive polymer having a melting temperature from about 100° C. to about 250° C. and a fusing agent including a radiation absorber to selectively apply to the powder bed material.

公开(公告)号：US11613075B2

公开(公告)日：2023-03-28

申请号：US16080256

申请日：2017-04-20

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

Inventor： James William Stasiak ,  Garry Hinch

IPC: B29C64/165 ,  B29C64/393 ,  B33Y70/10 ,  G01N21/31 ,  B33Y70/00 ,  B33Y40/10

Abstract: The present disclosure relates to a build composition for a 3-dimensional printing process. The build composition comprises thermoplastic polymer particles, a first photoluminescent agent and a second photoluminescent agent. The build composition has a spectral signature characteristic of the presence of the first photoluminescent agent and the second photoluminescent agent in combination.

公开(公告)号：US20220363929A1

公开(公告)日：2022-11-17

申请号：US17763538

申请日：2019-12-02

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

Inventor： Kellie S. Dalby ,  Raymond Adamic ,  Garry Hinch

IPC: C09D11/38 ,  C09D11/322 ,  C09D11/328 ,  C08K3/36 ,  C08K9/06

Abstract: An example of an inkjet ink composition includes an aqueous vehicle, a colorant dispersed or dissolved in the aqueous vehicle, silica nanoparticles dispersed in the aqueous vehicle, and modified silica nanoparticles dispersed in the aqueous vehicle. Each modified silica nanoparticle includes a silica core as well as a hydrophobic silane coupling agent attached to the silica core.

公开(公告)号：US20220168952A1

公开(公告)日：2022-06-02

申请号：US17417075

申请日：2019-08-12

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

Inventor： Robert Ionescu ,  James William Stasiak ,  Garry Hinch

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  C01G23/00

Abstract: A multi-fluid kit for three-dimensional printing can include a fusing agent and a nanoparticle-containing agent. The fusing agent can include water and a radiation absorber, where the radiation absorber absorbs radiation energy and converts the radiation energy to heat. The nanoparticle-containing agent can include a liquid vehicle, high density nanoparticles, and a nanoparticle suspension compound selected from the group consisting of terpineol, ethyl cellulose, and a combination thereof.

公开(公告)号：US20210107216A1

公开(公告)日：2021-04-15

申请号：US16603303

申请日：2018-01-26

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

Inventor： Sterling Chaffins ,  Anthony P. Holden ,  Katrina Donovan ,  Noemie Midrez ,  Garry Hinch

IPC: B29C64/165 ,  B29C64/291 ,  B33Y10/00 ,  B33Y70/00 ,  B22F10/14 ,  C09D11/102 ,  C09D11/101 ,  C09D11/38 ,  C09D11/54

Abstract: In an example of a method for three-dimensional (3D) printing, a build material composition is applied to form a build material layer. The build material composition includes a polymeric or polymeric composite build material, and a precipitating agent. Based on a 3D object model, a fusing agent is selectively applied on at least a portion of the build material composition. The fusing agent includes a radiation absorber, which the precipitating agent precipitates. The build material composition is exposed to radiation to fuse the at least the portion to form a layer of a 3D part.

公开(公告)号：US20210087418A1

公开(公告)日：2021-03-25

申请号：US16603342

申请日：2018-01-26

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

Inventor： Sterling Chaffins ,  Anthony P. Holden ,  Katrina Donovan ,  Garry Hinch

IPC: C09D11/38 ,  B33Y70/00 ,  B29C64/165 ,  C09D11/102

Abstract: An example of a build material composition for three-dimensional (3D) printing includes a polymeric or polymeric composite build material and a wetting modifying agent. The wetting modifying agent is: (i) incorporated into the polymeric component of the polymeric or polymeric composite build material and changes the wetting behavior of the polymeric component; or (ii) selected from the group consisting of: a fluorotelomer; a C8-C20 alcohol; a methyltrialkyl ammonium chloride; docusate sodium salt; a polymer having a chemical structure of the polymeric component of the polymeric or polymeric composite build material modified to include a hydrophobic group or a hydrophilic group; and a combination thereof.