ROLL COATINGS SOL-GEL PRECURSORS
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United States of America Patent
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Issued Date -
Nov 12, 2015
app pub date -
Jul 22, 2015
filing date -
Apr 2, 2010
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Abstract
A roll coater with a recirculation loop is disclosed. Waste coating material form the roll coater is treated in an agitator unit containing, for example, one or more ultrasonic transducers, and optionally a filtration unit and/or temperature control unit to produce reconditioned coating solution, such as a reconditioned sol-gel precursor solution. Also disclosed is preventative maintenance module comprising a cleaning unit that is designed to engage and clean the applicator and/or metering rolls in a roll coater.
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