Stamper for injection molding

Details Stamper for injection molding Stamper for injection molding

1992-10-23

1996-01-16

Rose, Robert A.

Abrading

Abrading process

451 57, B24B 100

Patent

active

054843243

ABSTRACT:
A stamper for injection-molding a plastic substrate for an optical disk characterized in that a rear surface of the stamper a surface roughness between 0.3 to 2.0 S.

REFERENCES:
patent: 4435922 (1984-03-01), Prusak
patent: 4783041 (1988-11-01), Sakaida et al.

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