公开(公告)号：US12187873B2

公开(公告)日：2025-01-07

申请号：US18482339

申请日：2023-10-06

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

Inventor： Shannon Reuben Woodruff ,  Stephen G. Rudisill ,  Erica Fung ,  Rachael Donovan

IPC: B29C64/165 ,  B33Y70/00 ,  C08K5/06 ,  B29K77/00 ,  B29K105/00 ,  B33Y10/00

Abstract: An example of a multi-fluid kit for three-dimensional (3D) printing includes an elasticity agent to be applied to at least a portion of a build material composition during 3D printing and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The elasticity agent includes a plasticizer having: a formula (I): wherein n is an integer ranging from 3 to 8; or a formula (II): wherein m is an integer ranging from 3 to 8. The fusing agent includes an energy absorber.

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：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：US20210403749A1

公开(公告)日：2021-12-30

申请号：US16605391

申请日：2018-06-18

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

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

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

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 thermoplastic elastomer having: an avalanche angle ranging from about 49 degrees to about 59 degrees; a break energy ranging from about 55 kJ/kg to about 78 kJ/kg; and an avalanche energy ranging from about 10 kJ/kg to about 27 kJ/kg. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the thermoplastic elastomer in the at least the portion.

公开(公告)号：US20210339467A1

公开(公告)日：2021-11-04

申请号：US16603970

申请日：2018-06-18

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

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

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 thermoplastic elastomer having a melt enthalpy ranging from greater than 5 J/g to about 177 J/g. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the thermoplastic elastomer 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 is a plasmonic resonance absorber having absorption at wavelengths ranging from 800 nm to 4000 nm and having transparency at wavelengths ranging from 400 nm to 780 nm.

公开(公告)号：US20210269620A1

公开(公告)日：2021-09-02

申请号：US17047181

申请日：2018-10-24

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

Inventor： Sharon Reuben Woodruff ,  Stephen G. Rudisill ,  Erica Fung ,  Rachael Donovan

IPC: C08K5/06 ,  B33Y70/00

Abstract: An example of a multi-fluid kit for three-dimensional (3D) printing includes an elasticity agent to be applied to at least a portion of a build material composition during 3D printing and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The elasticity agent includes a plasticizer having: a formula (I): wherein n is an integer ranging from 3 to 8; or a formula (II): wherein m is an integer ranging from 3 to 8. The fusing agent includes an energy absorber.

公开(公告)号：US11787938B2

公开(公告)日：2023-10-17

申请号：US17837291

申请日：2022-06-10

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

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

IPC: B29C64/165 ,  C08L77/04 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D11/30 ,  B29K77/00

CPC classification number: C08L77/04 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D11/30 ,  B29K2077/00

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：US11780988B2

公开(公告)日：2023-10-10

申请号：US17047181

申请日：2018-10-24

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

Inventor： Shannon Reuben Woodruff ,  Stephen G. Rudisill ,  Erica Fung ,  Rachael Donovan

IPC: B29C64/165 ,  C08K5/06 ,  B33Y70/00 ,  B33Y10/00 ,  B29K77/00 ,  B29K105/00

CPC classification number: C08K5/06 ,  B33Y70/00 ,  B29C64/165 ,  B29K2077/00 ,  B29K2105/0032 ,  B29K2105/0038 ,  B33Y10/00

Abstract: An example of a multi-fluid kit for three-dimensional (3D) printing includes an elasticity agent to be applied to at least a portion of a build material composition during 3D printing and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The elasticity agent includes a plasticizer having: a formula (I): wherein n is an integer ranging from 3 to 8; or a formula (II): wherein m is an integer ranging from 3 to 8. The fusing agent includes an energy absorber.

公开(公告)号：US11628619B2

公开(公告)日：2023-04-18

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 ,  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：US20220298369A1

公开(公告)日：2022-09-22

申请号：US17837291

申请日：2022-06-10

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

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

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

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.