Polishing composition

Details Polishing composition Polishing composition

1992-12-07

1994-11-22

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Polishes

51309, C09G 100

Patent

active

053665422

ABSTRACT:
The present invention relates to a polishing composition comprising water, alumina, and a chelating agent. It may optionally be incorporated with an aluminum salt and/or boehmite. The present composition permits efficient polishing and gives a polished surface having superior surface properties. The composition is suitable for polishing a memory hard disk.

REFERENCES:
patent: 4225349 (1980-09-01), Koshiyama et al.
patent: 4475981 (1984-10-01), Rea
patent: 4581042 (1986-04-01), Willmore
patent: 4705566 (1987-11-01), Senda et al.
patent: 4915710 (1990-04-01), Miyazaki et al.
patent: 4935039 (1990-06-01), Miyazaki et al.
patent: 4956015 (1990-09-01), Okajima et al.
patent: 5084071 (1992-01-01), Nenadic et al.
patent: 5139570 (1992-08-01), Castrogiovanni et al.

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