Bibliographic Details
| Title: |
Substrate for Storage Media, and Method for Manufacturing a Recycled Resin Substrate |
| Document Number: |
20090324869 |
| Publication Date: |
December 31, 2009 |
| Appl. No: |
11/884457 |
| Application Filed: |
February 21, 2006 |
| Abstract: |
The main object of the present invention is to provide a substrate for storage media capable of recording and reproducing data for a limited period and capable of being easily recycled, and a method for manufacturing a recycled resin substrate reusable as such a substrate for storage media. In order to achieve the aforementioned object, the present invention provides a substrate for storage media comprising: a resin substrate containing a starch resin; and a resin layer formed on the resin substrate. |
| Inventors: |
Imai, Tetsuya (Saitama, JP); Hosoda, Yasuo (Saitama, JP); Shida, Noriyoshi (Saitama, JP) |
| Assignees: |
PIONEER CORPORATION (Tokyo, JP) |
| Claim: |
1-9. (canceled) |
| Claim: |
10. A substrate for storage media comprising: a resin substrate containing a starch resin; and a resin layer formed on the resin substrate, wherein, after being left for a predetermined time, a compound having a carbonyl group is precipitated on a surface of the resin substrate. |
| Claim: |
11. The substrate for storage media according to claim 10, wherein the resin substrate contains: glycerin in an amount of 2% by mass or more; methyl lactate in an amount of 0.02% by mass or less; and methoxyethyl acetate in an amount of 0.08% by mass or less. |
| Claim: |
12. The substrate for storage media according to claim 10, wherein, in manufacturing of the resin substrate, the starch resin prepared by adding glycerin in an amount of 11% by mass or more is used. |
| Claim: |
13. (canceled) |
| Claim: |
14. A substrate for optical disk comprising: a resin substrate containing a starch resin; and a resin layer, formed on the resin substrate, having a recording pit or a recording guide groove on the surface, wherein, after being left for a predetermined time, a compound having a carbonyl group is precipitated on a surface of the resin substrate. |
| Claim: |
15. The substrate for optical disk according to claim 14, wherein the resin substrate contains: glycerin in an amount of 2% by mass or more; methyl lactate in an amount of 0.02% by mass or less; and methoxyethyl acetate in an amount of 0.08% by mass or less. |
| Claim: |
16. The substrate for optical disk according to claim 14, wherein, in manufacturing of the resin substrate, the starch resin prepared by adding glycerin in an amount of 11% by mass or more is used. |
| Claim: |
17. A method for manufacturing a recycled resin substrate, the method comprising a peeling step, in which the recycled resin substrate is formed, by peeling off a recording layer and a resin layer of storage media comprising a resin substrate containing a starch resin, the resin layer formed on the resin substrate, and the recording layer formed on the resin layer. |
| Current U.S. Class: |
428/644 |
| Current International Class: |
32; 32 |
| Accession Number: |
edspap.20090324869 |
| Database: |
USPTO Patent Applications |
