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：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.