Abrasive member
AssigneeFuji Photo Film Co., Ltd.
InventorKatsumi Ryoke
Life of this patent
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Abstract
An abrasive member comprises a substrate and an abrasive layer, which is overlaid upon the substrate and is constituted of a binder and abrasive grains dispersed therein. The abrasive grains contain aluminum oxide grains, which have the characteristics such that the sodium content, as calculated in terms of NaO, in the abrasive grains may be at most 0.1% by weight, and such that the grain diameter of .alpha.-crystal grains may be at most 5 .mu.m. The abrasive member is capable of abrading a material to be abraded such that scratches, corrosion, or the like, may not occur with the abraded material, and the abraded material having good quality may be obtained.
Claims5
An abrasive member comprising:
- a substrate;
- an abrasive layer overlaid upon the substrate and comprising a binder and abrasive grains dispersed therein;
- wherein the abrasive grains contain aluminum oxide grains having a non-zero sodium content, as calculated in terms of NaO, of at least 0.05% and at most 0.1% by weight, and wherein a grain diameter of .alpha.-crystal grains is at most 5 .mu.m.
Dependencies are inferred from the claim text.