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    • 4. 发明申请
    • OPTIMISED FIBRE REINFORCED FILMS
    • WO2022018044A1
    • 2022-01-27
    • PCT/EP2021/070180
    • 2021-07-19
    • MEGA PLAST INDUSTRIAL - EXPORTING S.A.
    • ARGYROPAIDAS, IoannisKARANDINOS, AnthonyTSOUKLERI, Georgia
    • B29C48/05B29C48/00B29C48/155B29D7/01B65D35/38
    • The present invention relates to a reinforced thermoplastic film comprising a base film wherein the base film comprises a stretchable polyolefin material comprising one or more layers and a plurality of extruded reinforcing fibre elements. The extruded reinforcing fibre elements are located on at least one surface of the base film and form fibre protrusions relative to the surface plane of the base film. At the location where each reinforcing fibre element is provided on the base film, an interface is formed comprising direct interactions between a base film domain and a protrusion domain. The base film domain is a domain of pure base film material and the protrusion domain is a domain of pure reinforcing fibre element material. The interface between the base film domain and the protrusion domain is interrupted by one or more discrete intermixed domains, wherein the intermixed domains comprise a material mixture comprising the base film material and the reinforcing fibre element material. The one or more intermixed domains partially interrupt the direct interactions at the interface between the base film domain and the protrusion domain. Furthermore, the one or more intermixed domains have interfaces and direct interactions with the base film and protrusion domains. The average thickness of the base film is less than the average thickness of the fibre protrusion. The films of the invention have controllable physical and mechanical properties such as tensile strength, elongation at break, tear resistance, coefficient of friction and adhesion.