公开(公告)号：WO2023022725A1

公开(公告)日：2023-02-23

申请号：PCT/US2021/046803

申请日：2021-08-20

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： WYCOFF, Kyle ,  OLUBUMMO, Adekunle ,  HARTMAN, Aja ,  NIU, Michelle ,  NAUKA, Krzysztof ,  LEVIN, Emily ,  DISCEKICI, Emre Hiro

IPC分类号： B29C64/165 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00

摘要： A fusing agent for three-dimensional printing can include from about 5 wt% to about 40 wt% water; from about 4 wt% to about 60 wt% C7 to C12 aliphatic ester cosolvent; and from about 0.5 wt% to about 10 wt% solubilized avobenzone.

公开(公告)号：WO2022271173A1

公开(公告)日：2022-12-29

申请号：PCT/US2021/038793

申请日：2021-06-24

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： WYCOFF, Kyle ,  NAUKA, Krzysztof ,  HARTMAN, Aja ,  NIU, Michelle ,  OLUBUMMO, Adekunle ,  DISCEKICI, Emre Hiro

IPC分类号： B29C64/165 ,  B29C64/20 ,  B29C64/264 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  B33Y80/00

摘要： A three-dimensional printing kit can include a build material having from about 80 wt% to 100 wt% polymeric particles with a D50 particle size from about 10 μm to about 150 μm, and a fusing agent including from about 0.5 wt% to about 20 wt% benzotriazole radiation absorber solubilized in a liquid vehicle.

公开(公告)号：WO2022271177A1

公开(公告)日：2022-12-29

申请号：PCT/US2021/038901

申请日：2021-06-24

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： HARTMAN, Aja ,  NIU, Michelle ,  OLUBUMMO, Adekunle ,  WYCOFF, Kyle ,  NAUKA, Krzysztof ,  DISCEKICI, Emre Hiro

IPC分类号： B29C64/165 ,  B33Y10/00 ,  B33Y70/00

摘要： A three-dimensional printing kit for forming lens elements can include a build material including from about 80 wt% to 100 wt% thermoplastic polyamide elastomeric particles having a D50 particle size from about 10 μm to about 150 μm, and a fusing agent including a liquid vehicle and from about 0.5 wt% to about 20 wt% of a UV radiation absorber.

公开(公告)号：WO2023048749A1

公开(公告)日：2023-03-30

申请号：PCT/US2021/071532

申请日：2021-09-21

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： NAUKA, Krzysztof ,  NIU, Michelle

IPC分类号： B29C64/165 ,  B29C64/20 ,  B33Y30/00 ,  B33Y10/00 ,  B22F10/14 ,  B22F12/00

摘要： In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a bed moveable in a vertical direction. The bed is to receive a build material that is to form a three-dimensional (3D) printed object. The additive manufacturing system also includes a build material depositor to deposit the build material on the bed and a build material spreader to traverse across the bed to spread the build material. The additive manufacturing system also includes a solidification system to selectively solidify a layer of build material. The additive manufacturing system also includes a controller. The controller is to lower the bed by a first amount in preparation for receiving build material and iteratively raise the bed in increments in between passes of the build material spreader across the bed, wherein an increment is a portion of the first amount.

公开(公告)号：WO2022271174A1

公开(公告)日：2022-12-29

申请号：PCT/US2021/038798

申请日：2021-06-24

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： WYCOFF, Kyle ,  OLUBUMMO, Adekunle ,  NAUKA, Krzysztof ,  HARTMAN, Aja ,  NIU, Michelle ,  DISCEKICI, Emre Hiro

IPC分类号： B29C64/165 ,  B29C64/264 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  B33Y80/00 ,  C08K5/3492

摘要： A fusing agent for three-dimensional printing can include from about 0.5 wt% to about 6 wt% triazine radiation absorber; from about 40 wt% to about 90 wt% organic cosolvent; from about 0.4 wt% to about 4 wt% of a surfactant selected from a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, or a mixture thereof; and water.