中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.016 seconds)

    THREE-DIMENSIONAL PRINTING
    3.
    发明申请
    THREE-DIMENSIONAL PRINTING 有权

    公开(公告)号：US20210354375A1

    公开(公告)日：2021-11-18

    申请号：US17047723

    申请日：2019-04-29

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

    Inventor： Adekunle Olubummo ,  Kyle Wycoff ,  Aja Hartman ,  Lihua Zhao

    IPC: B29C64/165 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

    Abstract: In an example of a method for three-dimensional (3D) printing, a build material composition is applied to form a build material layer. The build material composition includes a polyamide. The polyamide is selectively melted, based on a 3D object model, in at least a portion of the build material layer to form a molten portion including molten polyamide. An epoxy agent is selectively applied, based on the 3D object model, on the molten portion of the build material layer. The epoxy agent includes a polyfunctional epoxy, which crosslinks the molten polyamide in the molten portion.

    3D printing
    4.
    发明授权
    3D printing 有权

    公开(公告)号：US10780633B2

    公开(公告)日：2020-09-22

    申请号：US16080233

    申请日：2017-06-13

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

    Inventor： Adekunle Olubummo ,  Lihua Zhao

    IPC: B29C64/165 ,  B29C64/214 ,  B29C64/218 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y10/00

    Abstract: Compositions and methods for 3D printing are described herein. In an example, a composition for 3D printing can comprise a build material comprising at least one polymer and at least one first electron donor compound; and a fusing agent comprising (i) a metal bis(dithiolene) complex, (ii) at least one surfactant, at least one second electron donor compound, or combinations thereof, (iii) a polar aprotic solvent, and (iv) water. The at least one first electron donor compound and the at least one second electron donor compound can be the same or different.

    THREE-DIMENSIONAL PRINTING
    7.
    发明申请
    THREE-DIMENSIONAL PRINTING 有权

    公开(公告)号：US20220009161A1

    公开(公告)日：2022-01-13

    申请号：US17298639

    申请日：2019-10-10

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

    Inventor： Aja Hartman ,  Wei Huang ,  Adekunle Olubummo ,  Kyle Wycoff ,  John Samuel Dilip Jangam

    IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D177/02 ,  C09D7/63

    Abstract: The present disclosure relates to a three-dimensional (3D) printing materials kit comprising: a first tailoring agent comprising at least one crosslinking agent; a second tailoring agent comprising at least one plasticizer, and a fusing agent. The present disclosure also relates to a printed structure comprising regions of relatively higher ductility and regions of relatively lower ductility. The regions of relatively higher ductility can be interspersed by the regions of relatively lower ductility, and the regions of relatively lower ductility can be formed from a crosslinked polymer and/or a polymer composition comprising a reinforcing filler, and/or the regions of relatively higher ductility can be formed from a polymer composition comprising a plasticizer. The present disclosure also relates to a method of three dimensional printing (3D) that can be used to print a 3D printed object comprising the printed structure described above.

    THREE-DIMENSIONAL PRINTING
    8.
    发明申请
    THREE-DIMENSIONAL PRINTING 有权

    公开(公告)号：US20210355319A1

    公开(公告)日：2021-11-18

    申请号：US17047720

    申请日：2018-09-22

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

    Inventor： Adekunle Olubummo ,  Lihua Zhao ,  Aja Hartman

    IPC: C08L77/04 ,  B33Y70/00 ,  C08L63/00 ,  C08K5/17

    Abstract: An example of a three-dimensional (3D) printing kit includes a build material composition, an epoxy agent to be applied to at least a portion of the 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 build material composition includes a polyamide having an amino functional group. The epoxy agent includes an epoxy having an epoxide functional group to react with the amino functional group of the polyamide in the at least the portion. The fusing agent includes an energy absorber.

    Fusing agent including a metal bis(dithiolene) complex
    9.
    发明授权
    Fusing agent including a metal bis(dithiolene) complex 有权

    公开(公告)号：US10781228B2

    公开(公告)日：2020-09-22

    申请号：US16079361

    申请日：2017-02-06

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

    Inventor： Adekunle Olubummo ,  Lihua Zhao ,  Aja Hartman ,  Howard S. Tom ,  Kristopher J. Erickson

    IPC: C07F15/04 ,  C07C321/18 ,  B29C64/165 ,  C07F15/00 ,  B33Y70/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393

    Abstract: An example of a fusing agent includes a metal bis(dithiolene) complex, a thiol surfactant, a polar aprotic solvent, and a balance of water. In an example of a method of making the fusing agent, the metal bis(dithiolene) complex is exposed to an aqueous solution including a reducing agent and a thiol surfactant to form a reduced metal bis(dithiolene) complex and to dissolve the reduced metal bis(dithiolene) complex in the aqueous solution. The aqueous solution is incorporated into a vehicle including a water soluble organic solvent and an additive selected from the group consisting of an emulsifier, a surface tension reduction agent, a wetting agent, a scale inhibitor, an anti-deceleration agent, a chelating agent, an antimicrobial agent, and a combination thereof. The fusing agent may be utilized in a three-dimensional printing method and/or incorporated into a three-dimensional printing system.

Patent Agency Ranking