Abstract
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 language | English |
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| IPC | B24D 5/ 06 A I |
| Patent number | WO2021018504 |
| Filing date | 01/07/2020 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 26/07/2019 |
| Priority number | EP20190188627 |
| Publication status | Published - 4 Feb 2021 |