Metal-polishing composition and process

Details Metal-polishing composition and process Metal-polishing composition and process

1986-01-06

1987-02-24

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

51281R, 51309, 156153, 156645, 156903, B44C 122, B24B 100, B24B 719, B24D 302

Patent

active

046455612

ABSTRACT:
The working surfaces of nickel-coated substrates for rigid magnetic discs are polished in a single-step process that employs a polishing composition comprising an aqueous suspension of unlubricated aluminum oxide powder having a hexagonal crystal shape and a nominal particle size of 1 to 10 microns, and colloidal aluminum oxide.

REFERENCES:
patent: 3342652 (1967-09-01), Reisman et al.
patent: 4011099 (1977-03-01), Gutsche
patent: 4305779 (1981-12-01), Steeves et al.
patent: 4412886 (1983-11-01), Sakaguchi et al.
patent: 4475981 (1984-10-01), Rea

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