JPS5677905A - Disk record - Google Patents
Disk recordInfo
- Publication number
- JPS5677905A JPS5677905A JP15489579A JP15489579A JPS5677905A JP S5677905 A JPS5677905 A JP S5677905A JP 15489579 A JP15489579 A JP 15489579A JP 15489579 A JP15489579 A JP 15489579A JP S5677905 A JPS5677905 A JP S5677905A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- stamper
- disk record
- record
- wear resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To increase both the wear resistance and the fidelity of a disk record, by coating the ultraviolet-ray hardening resin on th surface of the disk record and thus facilitating an easy exfoliation of the record from the stamper during the production.
CONSTITUTION: The liquid resin 2 which is hardened with irradiation of the ultraviolet rays is coated over the surface of a stamper into which the signals are engraved. Then the transparent plate supporter 1 is press-fixed on the resin 2 to secure a uniform thickness of the resin 2. The ultraviolet rays are irradiated through the supporter to harden the liquid resin and then exfoliate the resin from the stamper. Thus a disk record is obtained. The composition of the resin contains 2,2-bis (4-acryloyloxtpolyethylene-oxyphenyl) propane which is expressed by a constitutional formula (where, the total of integers m and n is 3W4.) As a result, the exfoliation of the disk record from the stamper, at the same time enhancing the wear resistance of the signal groove 3 to the diamond stylus and the like.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15489579A JPS5677905A (en) | 1979-11-28 | 1979-11-28 | Disk record |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15489579A JPS5677905A (en) | 1979-11-28 | 1979-11-28 | Disk record |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5677905A true JPS5677905A (en) | 1981-06-26 |
JPH0232681B2 JPH0232681B2 (en) | 1990-07-23 |
Family
ID=15594297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15489579A Granted JPS5677905A (en) | 1979-11-28 | 1979-11-28 | Disk record |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5677905A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5687203A (en) * | 1979-12-18 | 1981-07-15 | Toppan Printing Co Ltd | Manufacture of disk |
JPS56127946A (en) * | 1980-03-12 | 1981-10-07 | Matsushita Electric Ind Co Ltd | Disk-type recording medium |
JPS5838125A (en) * | 1981-09-01 | 1983-03-05 | Toppan Printing Co Ltd | Manufacture of information record carrier |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271585A (en) * | 1975-10-20 | 1977-06-15 | Matsui Kagaku Kougiyoushiyo Kk | Photoocuring composition |
JPS5375291A (en) * | 1976-12-17 | 1978-07-04 | Toagosei Chem Ind Co Ltd | Casting composition |
JPS5386756A (en) * | 1976-10-15 | 1978-07-31 | Philips Nv | Plastic information carrier duplicating process and plastic record carrier and molding resin |
JPS53104638A (en) * | 1977-02-23 | 1978-09-12 | Mitsubishi Rayon Co Ltd | Coating composition and preparation of abrasion resistant synthetic resin molded artticle using the same |
JPS53116105A (en) * | 1977-03-14 | 1978-10-11 | Philips Nv | Method and device for making plastic record |
JPS55157107A (en) * | 1979-05-22 | 1980-12-06 | Matsushita Electric Ind Co Ltd | Disc record |
JPS55160338A (en) * | 1979-05-25 | 1980-12-13 | Philips Nv | Optically readable information disk* method and apparatus for fabricating same |
-
1979
- 1979-11-28 JP JP15489579A patent/JPS5677905A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271585A (en) * | 1975-10-20 | 1977-06-15 | Matsui Kagaku Kougiyoushiyo Kk | Photoocuring composition |
JPS5386756A (en) * | 1976-10-15 | 1978-07-31 | Philips Nv | Plastic information carrier duplicating process and plastic record carrier and molding resin |
JPS5375291A (en) * | 1976-12-17 | 1978-07-04 | Toagosei Chem Ind Co Ltd | Casting composition |
JPS53104638A (en) * | 1977-02-23 | 1978-09-12 | Mitsubishi Rayon Co Ltd | Coating composition and preparation of abrasion resistant synthetic resin molded artticle using the same |
JPS53116105A (en) * | 1977-03-14 | 1978-10-11 | Philips Nv | Method and device for making plastic record |
JPS55157107A (en) * | 1979-05-22 | 1980-12-06 | Matsushita Electric Ind Co Ltd | Disc record |
JPS55160338A (en) * | 1979-05-25 | 1980-12-13 | Philips Nv | Optically readable information disk* method and apparatus for fabricating same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5687203A (en) * | 1979-12-18 | 1981-07-15 | Toppan Printing Co Ltd | Manufacture of disk |
JPS6331847B2 (en) * | 1979-12-18 | 1988-06-27 | Toppan Printing Co Ltd | |
JPS56127946A (en) * | 1980-03-12 | 1981-10-07 | Matsushita Electric Ind Co Ltd | Disk-type recording medium |
JPS5838125A (en) * | 1981-09-01 | 1983-03-05 | Toppan Printing Co Ltd | Manufacture of information record carrier |
Also Published As
Publication number | Publication date |
---|---|
JPH0232681B2 (en) | 1990-07-23 |
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