公开(公告)号：US20140137766A1

公开(公告)日：2014-05-22

申请号：US14232800

申请日：2011-07-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.

Inventor： Sterling Chaffins ,  Kevin P. DeKam ,  Jayprakash C. Bhatt ,  Mehrgan Khavari

IPC: C09D11/00

CPC classification number: C09D11/38 ,  C09D11/10 ,  C09D11/102

Abstract: An ink is disclosed. The ink composition includes an ink vehicle, a colorant, and a fluorosurfactant, wherein the fluorosurfactant is a polymer having the general formula: wherein p is any integer, q is any integer, Z1 and Z2 are each fluorine or any functional group, and R1, R2, R3 are each fluorine, any alkyl group, or any functional group, and wherein R1, R2, R3, Z1, and Z2 are not all fluorine and the fluorosurfactant lowers the surface tension of the ink vehicle. A method for improving a property of an ink is also disclosed.

Abstract translation: 公开了一种墨水。 油墨组合物包括油墨载体，着色剂和含氟表面活性剂，其中含氟表面活性剂是具有以下通式的聚合物：其中p是任何整数，q是任何整数，Z 1和Z 2各自是氟或任何官能团，R 1 R 2，R 3各自为氟，任何烷基或任何官能团，并且其中R 1，R 2，R 3，Z 1和Z 2不全为氟，氟表面活性剂降低油墨载体的表面张力。 还公开了一种改善墨水性能的方法。

公开(公告)号：US12214549B2

公开(公告)日：2025-02-04

申请号：US18349102

申请日：2023-07-07

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

Inventor： Kevin P. DeKam ,  Sterling Chaffins ,  Cassady Sparks Roop

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D5/23

Abstract: The present disclosure is drawn to 3D printing kits, multi-fluid kits for 3D printing, and methods of making 3D printed articles. In one example, a 3D printing kit can include a powder bed material, a fusible fluid, and a magnetic fluid. The powder bed material can include polymer particles. The fusible fluid can include water and a radiation absorber. The fusible fluid can be to selectively apply to the powder bed material. The magnetic fluid can include magnetic particles, and the magnetic fluid can be to selectively apply to the powder bed material.

公开(公告)号：US20240253303A1

公开(公告)日：2024-08-01

申请号：US18290081

申请日：2021-06-03

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

Inventor： Karsten N. Wilson ,  Emre Hiro Discekici ,  Vladek Kasperchik ,  Timothy L. Weber ,  Mark Kowalski ,  Sterling Chaffins ,  Devin Alexander Mourey

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

CPC classification number: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

Abstract: A method of three-dimensional printing can include iteratively applying a polymer build material as individual layers to a powder bed, where the polymer build material includes from about 80 wt % to 100 wt % polymeric particles, and based on a three-dimensional object model, selectively applying a coalescing agent onto individual layers of the polymer build material. The coalescing agent can include an aqueous liquid vehicle and a coalescing solvent that depresses a melting point of the polymeric particles. The method can include exposing the powder bed to heat to selectively coalesce portions of individual layers of the polymer build material in contact with the coalescing solvent. The heat may not be sufficient to coalesce the polymer build material that is not in contact with the coalescing solvent and may be sufficient to fuse the polymeric particles in contact with the coalescing solvent together to form a three-dimensional object.

公开(公告)号：US20220402205A1

公开(公告)日：2022-12-22

申请号：US17891922

申请日：2022-08-19

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

Inventor： Garry Hinch ,  Kevin P. DeKam ,  Sterling Chaffins ,  James William Stasiak

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C67/00 ,  B33Y70/10

Abstract: A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

公开(公告)号：US11465341B2

公开(公告)日：2022-10-11

申请号：US16073222

申请日：2016-04-28

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

Inventor： Garry Hinch ,  Kevin P. DeKam ,  Sterling Chaffins ,  James William Stasiak

IPC: B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C67/00

Abstract: A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

公开(公告)号：US11426932B2

公开(公告)日：2022-08-30

申请号：US17043740

申请日：2018-05-15

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

Inventor： Sterling Chaffins ,  Anthony P. Holden

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/268 ,  B29K75/00 ,  B29K77/00 ,  B29K105/00

Abstract: In an example of a method for reducing oxidation of a build material during three-dimensional printing, a portion of a layer of a polymeric build material is patterned by selectively applying a fusing agent on the portion. A detailing agent selectively applied on a non-patterned portion of the layer. The detailing agent includes a stabilizer to reduce oxidation of the polymeric build material. The layer is exposed to electromagnetic radiation to fuse the portion to form a 3D object layer. The stabilizer at least minimizes discoloration of the non-patterned portion.

公开(公告)号：US20210362411A1

公开(公告)日：2021-11-25

申请号：US16606310

申请日：2018-03-13

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

Inventor： Kristopher J. Erickson ,  David George ,  Sterling Chaffins ,  Lihua Zhao

IPC: B29C64/194 ,  B29C64/165 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  H05K3/28 ,  H05K3/32 ,  H05K3/46 ,  H05K1/18

Abstract: In an example, a method is described that includes building a first layer of a three-dimensional heterogeneous object in a first plurality of passes of an additive manufacturing system. An electronic component is inserted directly into the first layer. The electronic component is then fused to the first layer in a second plurality of passes of the additive manufacturing system.

公开(公告)号：US20210362408A1

公开(公告)日：2021-11-25

申请号：US17047729

申请日：2018-10-16

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

Inventor： Kevin P. DeKam ,  Sterling Chaffins ,  Cassady Sparks Roop

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

Abstract: The present disclosure is drawn to 3D printing kits, multi-fluid kits for 3D printing, and methods of making 3D printed articles. In one example, a 3D printing kit can include a powder bed material, a fusible fluid, and a magnetic fluid. The powder bed material can include polymer particles. The fusible fluid can include water and a radiation absorber. The fusible fluid can be to selectively apply to the powder bed material. The magnetic fluid can include magnetic particles, and the magnetic fluid can be to selectively apply to the powder bed material.

公开(公告)号：US20210283834A1

公开(公告)日：2021-09-16

申请号：US16488715

申请日：2017-11-17

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

Inventor： Andrew Van Brocklin ,  Kevin P. DeKam ,  Vladek Kasperchik ,  Johnathon Holroyd ,  Douglas Pederson ,  Sterling Chaffins

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

Abstract: In an example of a method for three-dimensional (3D) printing, a polymeric or polymeric composite build material is applied. A dielectric agent is selectively applied on at least a portion of the polymeric or polymeric composite build material. The dielectric agent includes a dielectric material having an effective relative permittivity (εr) value ranging from 1.1 to about 10,000. A fusing agent is selectively applied on the at least the portion of the polymeric or polymeric composite build material, and the polymeric or polymeric composite build material is exposed to radiation to fuse the at least the portion of the polymeric or polymeric composite build material to form a region of a layer of a 3D part. The region exhibits a dielectric property, a piezoelectric property, or a combination thereof.

公开(公告)号：US20210229350A1

公开(公告)日：2021-07-29

申请号：US17047455

申请日：2018-10-19

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

Inventor： Sterling Chaffins ,  David Tucker ,  Kevin P. DeKam ,  David C. Woodlock ,  Lee Dockstader

IPC: B29C64/188 ,  B29C64/153 ,  B29C64/165 ,  B33Y40/20 ,  C25D5/56

Abstract: The present disclosure is drawn to 3D printing kits and methods of making 3D printed articles. In one example, a 3D printing kit can include a powder bed material, a fusible fluid, and an activator fluid. The powder bed material can include polymer particles. The fusible fluid can include a radiation absorber. The fusible fluid can be to selectively apply to the powder bed material. The activator fluid can include a non-conductive electroless metal plating activator. The activator fluid can also be to selectively apply to the powder bed material.