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：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：US20220064461A1

公开(公告)日：2022-03-03

申请号：US16605352

申请日：2018-06-19

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

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

IPC: C09D11/102 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/165 ,  C09D11/037 ,  C09D11/033

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 polyamide having a melt enthalpy ranging from greater than 5 J/g to less than 150 J/g. The fusing agent includes an energy absorber to absorb electromagnetic radiation to coalesce the polyamide 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：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：US10981334B2

公开(公告)日：2021-04-20

申请号：US15745830

申请日：2015-09-30

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

Inventor： Carmina Querol Esparch ,  Alejandro Manuel De Pena ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B29C64/264 ,  B29C64/295 ,  B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C67/00 ,  B29C71/02 ,  B29C64/30 ,  B29C64/364 ,  B29K101/12

Abstract: An example method for cooling a build volume is described. In one implementation, a heating mechanism is set to a temperature identified based on the build material information, and the build volume is heated using the heating mechanism for a time period identified based on the build material information.

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：US20180207876A1

公开(公告)日：2018-07-26

申请号：US15745830

申请日：2015-09-30

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

Inventor： Carmina Querol Esparch ,  Alejandro Manuel De Pena ,  Manuel Freire Garcia

IPC: B29C64/393 ,  B29C64/264 ,  B29C64/295 ,  B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/20 ,  B29C64/264 ,  B29C64/295 ,  B29C64/30 ,  B29C67/00 ,  B29C71/02 ,  B29K2101/12 ,  B29K2995/004 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: An example method for cooling a build volume is described. In one implementation, a heating mechanism is set to a temperature identified based on the build material information, and the build volume is heated using the heating mechanism for a time period identified based on the build material information.

公开(公告)号：US11613670B2

公开(公告)日：2023-03-28

申请号：US16605391

申请日：2018-06-18

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

Inventor： Erica Fung ,  Carolin Fleischmann ,  Jesiska 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 ,  B29K21/00

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: 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.