Lapping tape

Details Lapping tape Lapping tape

1990-05-10

1992-05-05

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428328, 428329, 428694, 428900, G11B 2300

Patent

active

051106590

ABSTRACT:
A lapping tape has an abrasive coat which comprises an acicular iron oxide powder having a surface area of at least 30 m.sup.2 /g as determined by the BET method and a granular inorganic powder having a Moh's hardness of more than 7 and contained in an amount of from 2.0 to 30 percent by weight on the basis of the weight of the oxide powder. The coat has a centerline mean roughness between 0.015 and 0.03 .mu.m. Preferably the acicular iron oxide is magnetic, and the inorganic powder ranges in particle diameter from 0.05 to 0.4 .mu.m.

REFERENCES:
patent: 4379800 (1983-04-01), Sato et al.
patent: 4476177 (1984-10-01), Mizuno et al.
patent: 4478908 (1984-10-01), Mizuno et al.
patent: 4701364 (1987-10-01), Miyoshi et al.

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