POLISHING ROLL
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United States of America Patent
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Issued Date -
Sep 19, 2019
app pub date -
Oct 30, 2017
filing date -
Oct 31, 2016
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Abstract
The present invention provides a polishing roll capable of, for example, realizing three-dimensional polishing of hard materials such as sapphire glass at a high removal amount. The polishing roll is a cylindrical polishing roll capable of rotating about a central axis, characterized in that the polishing roll includes a core part serving as a central axis to which torque is applied, an intermediate part having a cross-section concentric with the core part, and a polishing part disposed on the outer peripheral surface of the intermediate part, and the intermediate part is made of a cushion material that is softer than the polishing part.
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