Durabis
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Durabis (
To meet Blu-ray's specifications, TDK's coating had to be less than 0.1 mm thick, be hard enough to resist considerable damage, and be transparent enough to be easily read through. According to a filing with the U.S. Patent and Trademark Office, the process essentially spin-coats two layers onto discs.[3] One is for protection against scratches, and the other protects against stains and oils.
While Blu-ray mandates the use of a scratch-resistant coating, it does not specify what coating is used, and both Sony and Panasonic have their own independent hard coating technologies that are primarily in use on Blu-ray pre-recorded discs.
A TDK spokesman says the present protective layer represents "the first generation" of the coating and that the company has been refining the technology to better suit Blu-ray Discs. Although it might seem possible to adapt the polymer to other uses in
References
- ^ "Exclusive TDK Durabis Coating Technology Makes Cartridge-Free, Ultra-Durable Blu-Ray Discs a Reality". phys.org. Retrieved 2022-10-31.
- ^ a b c Shim, Richard (2004-11-18). "Try scratching this DVD". CNET. Archived from the original on June 16, 2011. Retrieved 2007-12-16.
- ^ a b US patent 7235292, Naoki Hayashida, Kazushi Tanaka, "Article with composite hard coat layer and method for forming composite hard coat layer", published 2007-06-26, issued 2007-06-26, assigned to TDK Corp
External links
- TDK Durabis Website
- Patent Application: Article With Composite Hard Coat Layer And Method For Forming Composite Hard Coat Layer
- Patent Application: Object With Composite Hard Coating Layer And Method Of Forming Composite Hard Coating Layer
- Patent Application: Methods for Producing Optical Recording Medium and Optical Recording Medium