Thermal and mechanical barrier layers for optical recording...

Details Thermal and mechanical barrier layers for optical recording... Thermal and mechanical barrier layers for optical recording...

G - Physics

11

B

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G11B 7/24 (2006.01) G01D 15/10 (2006.01) G11B 7/254 (2006.01)

Patent

CA 1151868

THERMAL AND MECHANICAL BARRIER LAYERS FOR OPTICAL RECORDING ELEMENTS Abstract of the Disclosure Improved thermal and mechanical barrier layers coated on the recording layer of an optical recording ele- ment are disclosed. The improved layers comprise water- soluble polymers having a glass transition temperature when dry of at least 100° C and preferably at least 150° C. These barrier layers are easily coated and do not significantly degrade the performance of the element. Optional layers such as spacer layers and topcoat layers coated on the barrier layers are also disclosed.

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