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    LAYER STRUCTURE WITH MODIFIED STRUCTURE, AND PRODUCTION THEREOF
    2.
    发明申请
    LAYER STRUCTURE WITH MODIFIED STRUCTURE, AND PRODUCTION THEREOF 有权

    公开(公告)号：US20230008490A1

    公开(公告)日：2023-01-12

    申请号：US17775341

    申请日：2020-11-16

    申请人： Covestro Intellectual Property GmbH & Co. KG

    发明人： Georgios Tziovaras ,  Roland Kuenzel ,  Christoph Koehler ,  Kira Planken ,  Stefan Janke ,  Heinz Pudleiner

    IPC分类号： B42D25/41 ,  B23K26/362 ,  B42D25/351

    摘要： The invention relates to a layer structure containing: (A) a first transparent radiation-engravable layer (A) with a first surface a1) and a second surface a2) which runs substantially parallel to the surface a1), said first layer (A) having a colorful or black part-engraving, said engraving being generated by means of nonionizing electromagnetic radiation (E), on the first surface a1) which forms a first outer surface of the layer structure; (B) optionally an additional transparent radiation-engravable layer (B) with a first surface b1) facing towards the first layer (A) and another surface b2) facing away from the first layer (A) and running substantially parallel to the surface b1); and (C) optionally at least one additional transparent plastic layer (C), wherein the additional layer (C) is selectively provided in one of a group of options consisting of: on the face of the first surface a1) of the layer (A), on the face of the additional surface b2) of the additional layer (B), between the two layers (A) and (B), or, in the event of additional layers (C), a combination of at least two of said options, and an image of the colorful or black part-engraving is located on the surface of the layer structure in the form of a nontransparent structural modification forming an additional outer surface of the layer structure and lying opposite the first surface a1). The invention likewise relates to the production of the layer structure as well as to a security document containing the layer structure according to the invention.

    DYNAMICALLY TEMPERATURE-CONTROLLED IN-MOULD DECORATION
    4.
    发明申请
    DYNAMICALLY TEMPERATURE-CONTROLLED IN-MOULD DECORATION 有权

    公开(公告)号：US20210331360A1

    公开(公告)日：2021-10-28

    申请号：US17272991

    申请日：2019-08-27

    申请人： Covestro Intellectual Property GmbH & Co. KG

    发明人： Roland Kuenzel ,  Peter Capellen ,  Thomas Grimm

    IPC分类号： B29C45/14 ,  B32B17/10 ,  B29C45/73 ,  B29C45/78

    摘要： The invention relates to an injection-molding process for the production of an injection-molded element, comprising a film element and an in-mold-coating layer directly injected onto said element. The film element occupies only part of the area of the in-mold-coating layer, and therefore at least one portion of the film edges of said film element is located in the middle of the relevant area of the injection-molded element. In order to avoid notching in the boundary region, the process for the production of the injection-molded element utilizes dynamic temperature control for locally restricted heating of the mold in the region where the flow front of the in-mold-coating material encounters the film material. Injection-molded elements are thus obtained in which no optically discernible boundary is present between film element and in-mold-coating layer. Because there are no joints, the injection-molded elements are amenable to successful and durable subsequent coating.

    Layer structure with modified structure, and production thereof
    5.
    发明授权
    Layer structure with modified structure, and production thereof 有权

    公开(公告)号：US12023953B2

    公开(公告)日：2024-07-02

    申请号：US17775341

    申请日：2020-11-16

    申请人： Covestro Intellectual Property GmbH & Co. KG

    发明人： Georgios Tziovaras ,  Roland Kuenzel ,  Christoph Koehler ,  Kira Planken ,  Stefan Janke ,  Heinz Pudleiner

    IPC分类号： B42D25/41 ,  B23K26/362 ,  B42D25/351

    CPC分类号： B42D25/41 ,  B23K26/362 ,  B42D25/351

    摘要： The invention relates to a layer structure containing: (A) a first transparent radiation-engravable layer (A) with a first surface a1) and a second surface a2) which runs substantially parallel to the surface a1), said first layer (A) having a colorful or black part-engraving, said engraving being generated by means of nonionizing electromagnetic radiation (E), on the first surface a1) which forms a first outer surface of the layer structure; (B) optionally an additional transparent radiation-engravable layer (B) with a first surface b1) facing towards the first layer (A) and another surface b2) facing away from the first layer (A) and running substantially parallel to the surface b1); and (C) optionally at least one additional transparent plastic layer (C), wherein the additional layer (C) is selectively provided in one of a group of options consisting of: on the face of the first surface a1) of the layer (A), on the face of the additional surface b2) of the additional layer (B), between the two layers (A) and (B), or, in the event of additional layers (C), a combination of at least two of said options, and an image of the colorful or black part-engraving is located on the surface of the layer structure in the form of a nontransparent structural modification forming an additional outer surface of the layer structure and lying opposite the first surface a1). The invention likewise relates to the production of the layer structure as well as to a security document containing the layer structure according to the invention.