Patent ID: 6554911
Filing Date: 2003-04-29
Classification: B08B,C03C

Abstract:
A method for chemically cleaning en masse thin polarizing glass devices comprising the steps of:providing a cleaning vessel possessing a vertical side wall and a porous shelf secured to said vertical side to form a cavity for containing a plurality of polarizing glass devices; loading said polarizing glass devices into said cleaning vessel; washing said polarizing glass devices contained in said cleaning vessel in an organic solvent; washing said polarizing glass devices contained in said cleaning vessel in aqueous-based detergent; rinsing said polarizing glass devices contained in said cleaning vessel in a first rinse of high-purity water; rinsing said polarizing glass devices contained in said cleaning vessel in a dilute mineral acid rinse; rinsing said polarizing glass devices contained in said cleaning vessel in a second rinse of high-purity water; drying said polarizing glass devices contained in said cleaning vessel in an oven; and, unloading said polarizing glass devices from said cleaning vessel.