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    MECHANICALLY ANISOTROPIC 3D PRINTED FLEXIBLE POLYMERIC SHEATH
    11.
    发明申请
    MECHANICALLY ANISOTROPIC 3D PRINTED FLEXIBLE POLYMERIC SHEATH 有权

    公开(公告)号：US20220403102A1

    公开(公告)日：2022-12-22

    申请号：US17762208

    申请日：2020-10-20

    申请人： Carbon, Inc.

    发明人： Hardik Kabaria ,  Eleanor R. Meyer ,  Steven Kenneth Pollock

    IPC分类号： C08G63/08 ,  B29C64/129

    摘要： A connective or supportive sheath comprising, consisting of, or consisting essentially of a hollow tube having a circumferential or perimeter wall, the wall having an inner surface and an outer surface, the wall comprising interconnected, radially projecting, partitions, the partitions forming radially extending pores, the pores extending from said inner surface through said outer surface, and wherein the tube is comprised of, consists of, or consists essentially of a flexible or elastic polymer.

    TECHNIQUES FOR ADDITIVE FABRICATION PROCESS OPTIMIZATION AND RELATED SYSTEMS AND METHODS
    13.
    发明申请
    TECHNIQUES FOR ADDITIVE FABRICATION PROCESS OPTIMIZATION AND RELATED SYSTEMS AND METHODS 有权

    公开(公告)号：US20220363048A1

    公开(公告)日：2022-11-17

    申请号：US17832170

    申请日：2022-06-03

    申请人： Formlabs, Inc.

    发明人： Ben FrantzDale ,  Steven Thomas ,  Nicholas M. Sohn

    IPC分类号： B33Y10/00 ,  B33Y50/02 ,  B29C64/129 ,  B29C64/386 ,  B29C64/135

    摘要： According to some aspects, a method of additive fabrication is provided wherein a plurality of layers are formed on a build platform, each layer contacting a container in addition to the build platform and/or a previously formed layer, the method comprising calculating, using at least one processor, one or more forces to be applied to a first layer of the plurality of layers subsequent to the first layer being formed, said calculating being based at least in part on a determined area of at least one portion of the first layer that overhangs a second layer of the plurality of layers, forming the first layer, the first layer being in contact with the container and in contact with a previously formed layer of the plurality of layers, and separating the first layer from the container by applying the calculated one or more forces to the first layer.

    3D printing system
    14.
    发明授权
    3D printing system 有权

    公开(公告)号：US11498275B1

    公开(公告)日：2022-11-15

    申请号：US17453329

    申请日：2021-11-02

    申请人： NEXA3D INC.

    发明人： Francis Kenyon Whetsell ,  Miguel Cuevas Sandoval

    IPC分类号： B29C64/25 ,  B29C64/129 ,  B33Y30/00 ,  B29C64/286 ,  B29C64/245 ,  B29C64/255 ,  B33Y40/00 ,  B29C64/30

    摘要： A 3D printing system may include a tank in which a bottom of the tank is formed by a radiation-transparent flexible membrane, a spill tray with an outer wall configured to contain liquid resin that inadvertently leaks out from the bottom of the tank, and a light source configured to project radiation towards the bottom of the tank. The spill tray may contain an inner opening that allows the radiation from the light source to pass through the spill tray to the tank. A 3D printing system may also include a mask assembly which comprises a mask with pixels configurable to be individually transparent or opaque to portions of the radiation projected from the light source and a mask assembly receiving member configured to receive the mask assembly. The mask assembly may also include a rigid guide portion that is insertable into a slot of the mask assembly receiving member.

    Dual-cure method and system for fabrication of 3D polymeric structures
    18.
    发明授权
    Dual-cure method and system for fabrication of 3D polymeric structures 有权

    公开(公告)号：US11440994B2

    公开(公告)日：2022-09-13

    申请号：US16732178

    申请日：2019-12-31

    申请人： Zhejiang Xunshi Technology Co., Ltd.

    发明人： Hailun Borjigin ,  Lingzhu Zhang

    IPC分类号： C08G73/10 ,  B29C64/393 ,  B33Y10/00 ,  B29C64/129 ,  B33Y50/02 ,  B33Y70/00 ,  B29K79/00

    摘要： A dual-cure method for forming a solid polymeric structure is provided. An end-capped, imide-terminated prepolymer is combined with at least one photopolymerizable olefinic monomer, at least one photoinitiator, and a diamine, to form a curable resin composition, which, in a first step, is irradiated under conditions effective to polymerize the at least one olefinic monomer, thus forming a scaffold composed of the prepolymer and the polyolefin with the diamine trapped therein. The irradiated composition is then thermally treated at a temperature effective to cause a transimidization reaction to occur between the prepolymer and the diamine, thereby releasing the end caps of the prepolymer and providing the solid polymeric structure. A curable resin composition comprising an end-capped, imide-terminated prepolymer, at least one photopolymerizable olefinic monomer, at least one photoinitiator, and a diamine, is also provided, as are related methods of use.