Polishing tool for high aspect ratio profiles

Soufian Ben Achour (Inventor), Giuliano Bissacco (Inventor)

    Research output: Patent

    39 Downloads (Pure)


    The present invention relates to a polishing instrument comprising an elongated shaft comprising a neck and a tip at the first end of said elongated shaft, said tip being formed of a polymer compound of thermoplastic and/or thermosetting materials and having a radius or equivalent radius of less than 3cm; a method of, polishing, such as micro-polishing by use of the polishing instrument comprising applying a force to the polishing instrument, and preferably a rotational speed of at least 100, such as at least 2.000 rpm while maintaining a runout less than 10µm; and a method of forming the polishing instrument using injection moulding that may comprise compounding a polymer compound material comprising micro-abrasive grains prior to injection of the compound material into the mold, to achieve a desired dispersion.

    Original languageEnglish
    IPCB24D 5/ 06 A I
    Patent numberWO2021018504
    Filing date01/07/2020
    Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
    Priority date26/07/2019
    Priority numberEP20190188627
    Publication statusPublished - 4 Feb 2021


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