Roll coatings sol-gel precursors
AssigneeAdvenira Enterprises, Inc.
InventorElmira Ryabova
Life of this patent
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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.
Claims20
A method of forming a film on a substrate using a roll coater, the method comprising:
- supplying a coating fluid into a gap formed by an applicator roll and a metering roll, wherein the coating fluid comprises a sol-gel precursor;
- forming a layer of the coating fluid on the applicator roll;
- and
- transferring at least a portion of the layer of the coating fluid layer from the applicator roll onto the substrate thereby forming the film on the substrate.
A method of forming a film on a substrate using a roll coater, the method comprising:
- receiving an excess fluid generated during operation of the roll coater and treating an excess fluid in a recirculation loop,
- wherein treating the excess fluid in the recirculation loop comprises imparting ultrasonic energy onto the excess fluid, and
- wherein the excess fluid comprises a sol-gel precursor.
Dependencies are inferred from the claim text.