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    METHOD OF MAKING POLYMER ARTICLES AND POLYMER COMPOSITES BY ADDITIVE PROCESSING AND POLYMER AND COMPOSITE ARTICLES
    2.
    发明申请
    METHOD OF MAKING POLYMER ARTICLES AND POLYMER COMPOSITES BY ADDITIVE PROCESSING AND POLYMER AND COMPOSITE ARTICLES 审中-公开

    公开(公告)号：WO2019016738A3

    公开(公告)日：2019-01-24

    申请号：PCT/IB2018/055355

    申请日：2018-07-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： BARTOW, Jeffrey N. ,  ZENTIS, Fee ,  GOTTSCHALK-GAUDIG, Gabriele H. ,  JIANG, Xuan ,  HINTZER, Klaus ,  NELSON, Per Miles

    IPC: C08J9/24 ,  C08L27/18 ,  C08L61/16 ,  B29C64/112

    Abstract: Provided is a method of producing polymer articles comprising (i) subjecting a composition to additive processing in an additive processing device containing at least one energy source wherein the composition comprises particles of a first polymer, particles of a second polymer and at least one binder material capable of binding the polymer particles to form a layer in a part of the composition that has been exposed to the energy source of the additive processing device; (ii) subjecting at least a part of the composition to exposure of the energy source to form a layer comprising the polymer particles and binder material; (iii) repeat step (ii) to form a plurality of layers to create an article; and wherein the first polymer is selected from polymers having a melting point above of at least 250°C or a glass transition temperature (Tg) of greater than 70°C and is not a fluoropolymer and wherein the second polymer is a fluoropolymer. Also provided are materials obtained by this method and articles containing such materials.

    METHODS OF MAKING ADDITIVE MANUFACTURED ARTICLES USING MULTILAYER ARTICLES, OBJECTS PREPARED BY THE METHODS, AND MULTILAYER ARTICLES
    5.
    发明申请
    METHODS OF MAKING ADDITIVE MANUFACTURED ARTICLES USING MULTILAYER ARTICLES, OBJECTS PREPARED BY THE METHODS, AND MULTILAYER ARTICLES 审中-公开

    公开(公告)号：WO2021220095A1

    公开(公告)日：2021-11-04

    申请号：PCT/IB2021/053047

    申请日：2021-04-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HUGHES, Gareth A. ,  BARTOW, Jeffrey N. ,  ILKKA, Steven J.

    IPC: B29C64/124 ,  B29C64/245 ,  B32B5/02 ,  B32B5/26

    Abstract: The present disclosure provides a method of making an additive manufactured article. The method includes: a) attaching a multilayer structure (300, 500) to a build platform (210); b) selectively curing a photocurable composition (219) that is in contact with a porous layer (330, 530) of the multilayer structure, thereby forming an object attached to the porous layer; and c) separating the object from the build platform. The multilayer structure includes an adhesive layer (310, 510), an impermeable layer (320, 520) attached to the adhesive layer, and a porous layer (330, 530) attached to the impermeable layer. The adhesive layer of the multilayer structure is attached to the build platform. The present disclosure also provides an object made by the method, and the multilayer article used in the method. Use of the multilayer article assists in improving adhesion between the build platform and the object.

    THREE-DIMENSIONAL ARTICLE AND METHOD OF MAKING A THREE-DIMENSIONAL ARTICLE
    8.
    发明申请
    THREE-DIMENSIONAL ARTICLE AND METHOD OF MAKING A THREE-DIMENSIONAL ARTICLE 审中-公开

    公开(公告)号：WO2019006266A1

    公开(公告)日：2019-01-03

    申请号：PCT/US2018/040234

    申请日：2018-06-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： BARTOW, Jeffrey N. ,  FRANKE, Carsten ,  HUFFMAN, Alexander J.

    IPC: B33Y80/00 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/124 ,  B29C64/165 ,  B29C64/245 ,  B29C64/264 ,  C08J5/18 ,  G03F7/00 ,  B32B3/00

    Abstract: A method includes obtaining a composition (1016) disposed on a surface of a substrate (1010), irradiating a first portion (1017a) of the composition for a first irradiation dosage, and irradiating a second portion (1017b) of the composition for a second irradiation dosage. The composition (1016) includes fluoropolymer particles and a binder material that is polymerizable upon exposure to radiation. The first portion (1017a) and the second portion (1017b) are adjacent to or overlapping with each other, and the first irradiation dosage and second irradiation dosage are different. Irradiating the first and second portions of the composition (1016) polymerizes the binder material and forms a three-dimensional article (1017) having a first portion (1017a) and a second portion (1017b) on the surface of the substrate (1010). The first portion (1017a) and second portion (1017b) of the three-dimensional article have different thicknesses in an axis normal to the surface of the substrate (1010). Three-dimensional articles are also described. The article (1017) can be. for example, a structured film.

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