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US 6,585,906 B2Granted
Method for recycling a disk having a layered structure on a glass substrate
AssigneeInternational Business Machines Corporation
InventorsDirk Hammel, Holger Roehl, Theo Schmitz, Johannes Windeln
Life of this patent
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Abstract
A method for recycling a disk having a layered structure on a glass substrate is disclosed. Initially, the disk is exposed to gaseous sulphur dioxide in a humid environment. Then, the disk is treated with hot water to remove the layered structure from the glass substrate.
Claims11
A method for recycling a disk having a layered structure on a glass substrate, said method comprising:
- exposing said disk to gaseous sulphur dioxide in a humid environment;
- and
- treating said disk with hot water to remove said layered structure from said glass substrate.
Dependencies are inferred from the claim text.