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    Heat Sealable Paper-Based Substrate Coated with Water-Based Coatings, Its Process of Manufacturing and Uses Thereof
    4.
    发明申请
    Heat Sealable Paper-Based Substrate Coated with Water-Based Coatings, Its Process of Manufacturing and Uses Thereof 有权

    公开(公告)号：US20230012879A1

    公开(公告)日：2023-01-19

    申请号：US17942716

    申请日：2022-09-12

    申请人： Cascades Sonoco Inc.

    发明人： Yvon Mongrain ,  Etienne Levert ,  Simon Provencher

    IPC分类号： D21H19/82 ,  C09D5/26 ,  D21H19/12 ,  D21H27/10

    摘要： A heat sealable paper-based substrate is provided with at least the first surface covered with at least one primer coat and at least one topcoat over the primer coat, wherein: the primer coat is formed from a substantially wax-free aqueous dispersion of at least one polymer or copolymer, has a coefficient of thermal expansion equal to or less than about 200 μm/(m·° C.) for at least one operating temperature, and has a complex viscosity of at least about 80000 poises at a heat seal temperature; the topcoat has a different composition than the primer coat and is formed from an aqueous dispersion of at least one thermoplastic polymer or copolymer, and has a complex viscosity of at least about 3000 poises at a heat seal temperature. The heat sealable paper-based substrate can be used to make articles to contain goods such as cold or hot beverages or food products.

    Heat Sealable Paper-Baed Substrate Coated with Water-Based Coatings, Its Process of Manufacturing and Uses Thereof
    5.
    发明申请
    Heat Sealable Paper-Baed Substrate Coated with Water-Based Coatings, Its Process of Manufacturing and Uses Thereof 有权

    公开(公告)号：US20210025114A1

    公开(公告)日：2021-01-28

    申请号：US16939290

    申请日：2020-07-27

    申请人： Cascades Sonoco Inc.

    发明人： Yvon Mongrain ,  Etienne Levert ,  Simon Provencher

    IPC分类号： D21H19/82 ,  D21H27/10 ,  D21H19/12 ,  C09D5/26

    摘要： A heat sealable paper-based substrate is provided with at least the first surface covered with at least one primer coat and at least one topcoat over the primer coat, wherein: the primer coat is formed from a substantially wax-free aqueous dispersion of at least one polymer or copolymer, has a coefficient of thermal expansion equal to or less than about 200 μm/(m·° C.) for at least one operating temperature, and has a complex viscosity of at least about 80000 poises at a heat seal temperature; the topcoat has a different composition than the primer coat and is formed from an aqueous dispersion of at least one thermoplastic polymer or copolymer, and has a complex viscosity of at least about 3000 poises at a heat seal temperature. The heat sealable paper-based substrate can be used to make articles to contain goods such as cold or hot beverages or food products.

    Coated paper-based substrate for containers and process for making the same
    9.
    发明授权
    Coated paper-based substrate for containers and process for making the same 有权

    公开(公告)号：US10590606B2

    公开(公告)日：2020-03-17

    申请号：US15686269

    申请日：2017-08-25

    申请人： CASCADES SONOCO INC.

    发明人： Yvon Mongrain ,  Émilie Allen

    IPC分类号： D21H19/84 ,  D21H27/10 ,  D21H21/18 ,  D21H19/12 ,  D21H19/56 ,  D21H19/62 ,  D21H21/16

    摘要： A coated paper-based substrate for manufacturing a container and a method for preparing the same. The coated paper-based substrate comprises a cellulosic fiber-based substrate coated on a first surface with a coating A and coated on a second surface with a coating B. The coating A comprises at least one layer of an extruded or laminated polymeric film or of a laminated foil. The coating B comprises at least one layer obtained by applying an aqueous dispersion of at least one polymer or copolymer capable of providing a water and/or moisture barrier to the second surface of the paper-based substrate once coated. The extruded or laminated polymeric film and the polymer or copolymer of the aqueous dispersion are different. The coating A and the coating B are heat sealable to each other.