Polishing cloth

Details Polishing cloth Polishing cloth

2006-11-14

2006-11-14

Eley, Timothy V. (Department: 3724)

Abrading

Flexible-member tool, per se

Interrupted or composite work face

C428S116000, C428S136000, C451S533000

Reexamination Certificate

active

07134952

ABSTRACT:
A polishing cloth has a surface layer stacked over a base material. The surface layer is made of a foamed layer and a non-foamed layer, the foamed layer including air bubble cells and the non-foamed layer having an externally exposed surface where linear cuts are formed. These linear cuts reach the air bubble cells such that the air bubble cells communicate with the exterior through the linear cuts. These linear cuts are controlled to be 10 μm or less in length.

REFERENCES:
patent: 3137611 (1964-06-01), Krolik, Jr.
patent: 3707401 (1972-12-01), Jarema et al.
patent: 3976525 (1976-08-01), Mednick
patent: 3983287 (1976-09-01), Goossen et al.
patent: 4714644 (1987-12-01), Rich
patent: 6929539 (2005-08-01), Schutz et al.
patent: 2003/0150169 (2003-08-01), Annen

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