Process for producing polyurethane grinding tool
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United States of America Patent
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Feb 5, 2008
Grant Date -
Jun 2, 2005
app pub date -
Sep 23, 2004
filing date -
Nov 27, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for producing a polyurethane grinding tool is provided, the process including a step of mixing one or more types of polyol component selected from the group consisting of polyether polyols and polyester polyols with inorganic abrasive grains, a step of mixing an organic polyisocyanate component with inorganic abrasive grains, a step of uniformly mixing the polyol component mixed with the abrasive grains and the polyisocyanate component mixed with the abrasive grains by means of a rotary-static mixer, and a step of molding the mixture thus obtained by reacting the mixture in a mold.
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