Method of manufacturing a plastic tank

    公开(公告)号:US11285655B2

    公开(公告)日:2022-03-29

    申请号:US17060286

    申请日:2020-10-01

    摘要: A method for producing a plastic tank includes preparing a tank wall as a hot extrudate. A reinforcing sheet is then attached to at least one region of the outer layer of the hot extrudate. After introducing the attached reinforcing sheet and the hot extrudate into a shaping tool, the shaping tool performs shaping of the hot extrudate and the attached reinforcing sheet to form the tank wall, while simultaneously enhancing the attachment of the reinforcing sheet to the tank wall.

    BLOW MOLDED PLASTIC CONTAINER AND GAS STORAGE TANK COMPRISING THE BLOW MOLDED PLASTIC CONTAINER AS A LINER

    公开(公告)号:US20220024106A1

    公开(公告)日:2022-01-27

    申请号:US17413151

    申请日:2019-12-10

    摘要: The present invention relates to a blow molded plastic container and to a polymer composition from which the blow molded plastic container is made. The blow molded plastic container comprises a pinched seamline and is made by an extrusion blow molding process comprising a pinch step. The present invention also relates to a gas storage tank, comprising the blow molded plastic container as a liner. The polymer composition comprises (a) a polyamide consisting of a copolyamide consisting of repeat units derived from lactam, diamine and dicarboxylic acid, and optionally chain stoppers or branching units or a combination thereof, or of a blend of at least two polyamides, comprising at least one polyamide comprising repeat units derived from lactam, and at least one polyamide comprising repeat units derived from diamine and dicarboxylic acid, and comprising 75-97.5 mole % caprolactam and 1-12 mole % monomer having an aromatic ring, (b) a heat stabilizer and (c) impact modifier.

    CONTAINER COMPRISING A MICROCELLULAR STRUCTURE

    公开(公告)号:US20220017255A1

    公开(公告)日:2022-01-20

    申请号:US17294940

    申请日:2019-12-11

    申请人: KULZER GMBH

    摘要: The invention relates to a container (30), in particular a bottle (30), for storing and optionally applying a liquid, solvent-containing compositions, having a multi-layer wall (20) comprising at least one side wall of the bottle, the bottom of the bottle and optionally a discharge region at the opening of the bottle,
    the multi-layer wall (20) comprising at least an inner layer (21), a barrier layer (22) and an outer layer (23), the barrier layer (22) being adapted to form a barrier for oxygen and/or water vapour, the inner layer (21) and/or the outer layer (23) having a microcellular structure (24), the microcellular structure (24) having fluid bubbles (25), and the fluid bubbles (25) being product of a physically and/or chemically introduced blowing agent. Moreover, the invention relates to a method for producing a container, in particular a bottle (30) for storing and optionally applying a liquid, solvent-containing composition, having a multi-layer wall (20), as well as use of a multi-layer wall (20) for producing the container (30).

    MULTILAYER PLASTIC BOTTLES WITH MINERAL FILLER AND FOAMED LAYER FOR IMPROVED RECYLABILITY

    公开(公告)号:US20210086428A1

    公开(公告)日:2021-03-25

    申请号:US17116096

    申请日:2020-12-09

    摘要: Plastic containers exhibiting reduced plastic resin usage, while maintaining a specific gravity of below 1.0, so as to allow their quick and easy separation using floatation techniques during recycling. Within a layer or portion some of the plastic resin of the container body may be replaced with an inorganic mineral filler material, while within another layer or portion of the plastic container, the plastic material (e.g., polyethylene, polypropylene) may be foamed. The fraction of mineral filler material that may be included within the polyethylene may thus be increased beyond that previously possible while maintaining the specific gravity below 1.0, by also foaming a layer or portion of the polymeric material, so as to create voids therein. This allows significantly less resin material to be employed, while maintaining strength characteristics of the plastic container so as to be at least comparable to existing plastic containers not including such mineral filler materials.