Storage medium for data
View Patent ↗This disclosure relates to a data storage medium, and in particular to a data storage medium comprising at least one high modulus layer. In one embodiment, an asymmetric optical storage medium can comprise: a substrate layer comprising polyarylene ether, a high modulus layer comprising a thermoset, and a data layer disposed between the modulus layer and the substrate layer. The high modulus layer has a tensile modulus that is greater than a substrate layer tensile modulus. In another embodiment, an asymmetric optical storage medium can comprise: a substrate layer comprising polyarylene ether and having surface features and a high modulus layer disposed on the side of the substrate comprising the surface features. The surface features can comprise pits. The high modulus layer can comprise a thermoset, and can have a tensile modulus that is greater than a substrate layer tensile modulus.
1. An asymmetric optical storage medium, comprising:
a substrate layer comprising polyarylene ether;
a high modulus layer comprising a thermoset, wherein the high modulus layer has a tensile modulus that is greater than a substrate layer tensile modulus; and
a data layer disposed between the high modulus layer and the substrate layer.
2. The optical storage medium of claim 1 , wherein the thermoset comprises an ultra-violet light cured thermoset.
3. The optical storage medium of claim 1 , wherein the thermo set was derived from a material selected from the group consisting of an acrylate, an epoxy, and a silicone.
4. The optical storage medium of claim 3 , wherein the thermoset was derived from a silicone-acrylate.
5. The optical storage medium of claim 1 , wherein the thermoset comprises silica with hydrolizable silanes.
6. The optical storage medium of claim 1 , wherein the thermoset comprises a silicone hardcoat.
7. The optical storage medium of claim 1 , wherein the data layer comprises imprinted data.
8. The optical storage medium of claim 1 , wherein the substrate layer comprises surface features, wherein the surface features comprise pits, and wherein the data layer is a reflective layer.
9. The optical storage medium of claim 1 , comprising another data layer.
10. The optical storage medium of claim 1 , wherein the substrate layer comprises surface features, and wherein the surface features comprise grooves.
11. The optical storage medium of claim 1 , wherein the data layer comprises an inorganic phase change compound.
12. The optical storage medium of claim 1 , wherein the data layer comprises an organic dye.
13. The optical storage medium of claim 1 , wherein the data layer comprises a reflective material is selected from the group comprising silver, silver alloys, and combinations comprising at least one of the foregoing.
14. The optical storage medium of claim 1 , the substrate further comprises a dielectric layer and wherein the dielectric layer comprises aluminum nitride.
15. The optical storage medium of claim 1 , further comprising:
a reflective layer disposed between the high modulus layer and the substrate layer;
an initial dielectric layer disposed between the data layer and the substrate; and
an additional dielectric layer disposed between the data layer and the high modulus layer.
16. The optical storage medium of claim 1 , wherein the substrate layer further comprises polystyrene.
17. An asymmetric optical storage medium comprising:
a substrate layer comprising polyarylene ether and having surface features, wherein the surface features comprise pits; and
a high modulus layer disposed on the side of the substrate comprising the surface features, wherein the high modulus layer comprises a thermoset, and wherein the high modulus layer has a tensile modulus that is greater than a substrate layer tensile modulus.
18. The optical storage medium of claim 17 , further comprising a reflective layer disposed between the high modulus layer and the substrate layer.
19. The optical storage medium of claim 17 , wherein the substrate layer further comprises polystyrene.
20. An asymmetric optical storage medium comprising:
a substrate layer comprising polyarylene ether and having surface features, wherein the surface features comprise grooves; and
a high modulus layer disposed on the side of the substrate comprising the surface features, wherein the high modulus layer comprises a thermoset, and wherein the high modulus layer has a tensile modulus that is greater than a substrate layer tensile modulus.