Abrasive material having a polycarbodiimide and polyurethane resin binder
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United States of America Patent
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-
Sep 9, 1980
Grant Date -
N/A
app pub date -
Mar 2, 1978
filing date -
Mar 3, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An abrasive material which comprises abrasive grains and a polycarbodiimide and polyurethane resin as the binder for the abrasive grains and a method of preparation thereof are disclosed. The polycarbodiimide and polyurethane resin is prepared by reacting a polyisocyanate and a polyol in the presence of a catalyst. The resin has a specified amount of carbodiimide bonding and urethane bonding.
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Cited Art Landscape
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