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    PHOTOCURABLE COMPOSITIONS AND METHODS FOR 3D PRINTING USING THEM
    1.
    发明申请
    PHOTOCURABLE COMPOSITIONS AND METHODS FOR 3D PRINTING USING THEM 审中-公开

    公开(公告)号：US20190092951A1

    公开(公告)日：2019-03-28

    申请号：US16143062

    申请日：2018-09-26

    Applicant: Saint-Gobain Performance Plastics Corporation

    Inventor： Lian Wang ,  Qiaoxi Li ,  Jianfeng Zhang ,  Xipeng Liu ,  Taoran Hui

    IPC: C09D11/101 ,  C09D11/102 ,  B33Y10/00 ,  B33Y70/00

    Abstract: The present disclosure relates generally to photocurable compositions and methods for continuously forming a three-dimensional body from these compositions. More particularly, the present disclosure relates to photocurable compositions comprising a mixture of polysiloxanes capable of being dually cured, i.e., first by UV radiation followed by thermal treatment, or being cured by UV radiation. In one aspect, the disclosure provides a photocurable composition, including: a first polysiloxane comprising at least two acrylate or methacrylate groups per molecule; a second polysiloxane containing at least one (e.g., at least two) Si—H group per molecule; a third polysiloxane containing at least one (e.g., at least two) reactive aliphatic ethylene group per molecule; a free radical photoinitiator in an amount of about 0.01 to about 10 weight % based on the total weight of (meth)acrylate-containing polysiloxane in the composition; and a hydrosilylation catalyst in an amount of about 0.001 to about 10 weight % hydride-containing polysiloxane and vinyl-containing polysiloxane in the composition.

    Photocurable compositions and methods for 3D printing using them
    6.
    发明授权
    Photocurable compositions and methods for 3D printing using them 有权

    公开(公告)号：US11492504B2

    公开(公告)日：2022-11-08

    申请号：US16143062

    申请日：2018-09-26

    Applicant: Saint-Gobain Performance Plastics Corporation

    Inventor： Lian Wang ,  Qiaoxi Li ,  Jianfeng Zhang ,  Xipeng Liu ,  Taoran Hui

    IPC: B33Y70/00 ,  C09D11/101 ,  C09D11/102 ,  B33Y10/00 ,  B29C64/124 ,  B29C64/112 ,  B29C64/135

    Abstract: The present disclosure relates generally to photocurable compositions and methods for continuously forming a three-dimensional body from these compositions. More particularly, the present disclosure relates to photocurable compositions comprising a mixture of polysiloxanes capable of being dually cured, i.e., first by UV radiation followed by thermal treatment, or being cured by UV radiation. In one aspect, the disclosure provides a photocurable composition, including: a first polysiloxane comprising at least two acrylate or methacrylate groups per molecule; a second polysiloxane containing at least one (e.g., at least two) Si—H group per molecule; a third polysiloxane containing at least one (e.g., at least two) reactive aliphatic ethylene group per molecule; a free radical photoinitiator in an amount of about 0.01 to about 10 weight % based on the total weight of (meth)acrylate-containing polysiloxane in the composition; and a hydrosilylation catalyst in an amount of about 0.001 to about 10 weight % hydride-containing polysiloxane and vinyl-containing polysiloxane in the composition.

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