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    RAPID SOLID-STATE FOAMING
    1.
    发明申请
    RAPID SOLID-STATE FOAMING 有权

    公开(公告)号：US20210237395A1

    公开(公告)日：2021-08-05

    申请号：US17018398

    申请日：2020-09-11

    申请人： Corumat, Inc.

    发明人： Michael WAGGONER

    IPC分类号： B32B5/20 ,  B32B5/14 ,  B32B27/06 ,  B65D65/38 ,  C08J9/00 ,  C08J9/12 ,  C08J9/34 ,  C08J9/36 ,  F16J15/10 ,  B29C44/02 ,  F16J15/40

    摘要： Disclosed, among other things, are ways to manufacture reduced density thermoplastics using rapid solid-state foaming and machines useful for the saturation of plastic. In one embodiment, a foaming process may involve saturating a semi-crystalline polymer such as Polylactic Acid (PLA) with high levels of gas, and then heating, which may produce a reduced density plastic having high levels of crystallinity. In another embodiment, a foaming process may produce layered structures in reduced density plastics with or without integral skins. In another embodiment, a foaming process may produce deep draw structures in reduced density plastics with or without integral skins. In yet another embodiment, a foaming process may utilize additives, blends, or fillers, for example. In yet another embodiment, a foaming process may involve saturating a semi-crystalline polymer such as Polylactic Acid (PLA) with high levels of gas, and then heating, which may produce a reduced density plastic having high levels of crystallinity.

    MULTILAYER MICROCELLULAR COMPOSTABLE BIOPLASTICS AND THEIR METHOD OF MANUFACTURE
    2.
    发明申请
    MULTILAYER MICROCELLULAR COMPOSTABLE BIOPLASTICS AND THEIR METHOD OF MANUFACTURE 有权

    公开(公告)号：US20220111570A1

    公开(公告)日：2022-04-14

    申请号：US17480674

    申请日：2021-09-21

    申请人： Corumat, Inc.

    发明人： Michael WAGGONER ,  Gregory J. TUDRYN ,  Zack KONDO

    IPC分类号： B29C44/34 ,  B32B7/022 ,  B32B5/20 ,  B32B27/36 ,  B29C44/24 ,  C08J5/18 ,  C08J9/12

    摘要： The present invention provides a continuous process for solid-state expansion of a biopolymer, e.g., polylactic acid, which can be used to manufacture reduced-density thermoplastic materials with improved physical and thermal properties. By incorporating multiple stages of heating into the process as a means to regulate heat flux, unprecedented control of microstructure and crystallinity can be achieved. Thermoplastic sheets with the distinct cellular characteristics imparted by the process disclosed herein were found to be thicker and stronger than materials prepared by conventional processes. Thermoforming sheets with such characteristics enabled the production of light-weight, thermally-stable, compostable products that resist warping, and are thus suitable for a range of industrial applications.

    SYSTEMS AND METHODS FOR RECYCLING OF REDUCED DENSITY BIOPLASTICS
    5.
    发明申请
    SYSTEMS AND METHODS FOR RECYCLING OF REDUCED DENSITY BIOPLASTICS 有权

    公开(公告)号：US20220073956A1

    公开(公告)日：2022-03-10

    申请号：US17480672

    申请日：2021-09-21

    申请人： Corumat, Inc.

    发明人： Michael WAGGONER ,  Gregory J. TUDRYN

    IPC分类号： C12P7/56 ,  C08J11/10 ,  C08J11/14 ,  C12P5/02 ,  B29B17/02

    摘要： A method for deriving value from a mixed waste feedstock can include receiving a mixed waste feedstock including at least a reduced density biopolymer material and an organic feedstock. At least one of a fluid or a material that releases liquids during degradation is added to the mixed waste feedstock. The reduced density biopolymer material is separated, via density separation, from the mixed waste feedstock. The reduced density biopolymer material has a specific gravity below a specific gravity threshold. The reduced density biopolymer material separated from the mixed waste feedstock as a result of the separating is recovered.

    REDUCED DENSITY THERMOPLASTICS
    6.
    发明申请
    REDUCED DENSITY THERMOPLASTICS 审中-公开

    公开(公告)号：US20200325299A1

    公开(公告)日：2020-10-15

    申请号：US16673368

    申请日：2019-11-04

    申请人： Corumat, Inc.

    发明人： Michael WAGGONER

    IPC分类号： C08J9/34 ,  B29C44/34 ,  C08J9/36 ,  B29C44/04 ,  B29C44/02 ,  B29C44/60 ,  B29C51/42 ,  B29C51/46 ,  B32B5/20

    摘要： The instant application discloses, among other things, ways to manufacture reduced density thermoplastics. A rapid foaming process which may create a polymer product by saturating thermoplastic sheet or preforms, heating, and then forming into final shape, is described. The polymer product may include an integral solid skin. This method may be utilized with any thermoplastic. The material handling, saturation methods, and end products are also described.