JPS6423433A - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- JPS6423433A JPS6423433A JP62178949A JP17894987A JPS6423433A JP S6423433 A JPS6423433 A JP S6423433A JP 62178949 A JP62178949 A JP 62178949A JP 17894987 A JP17894987 A JP 17894987A JP S6423433 A JPS6423433 A JP S6423433A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive agent
- layers
- recording medium
- hot
- optical recording
- 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
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
PURPOSE:To provide a recording medium which is improved in heat resistance and is usable even at a high temp. by using a hot-melt adhesive agent having the compsn. added with a thermoplastic plastomer as an adhesive agent to stick the substrates of the optical recording medium to each other. CONSTITUTION:Two sheets of the structural bodies formed by laminating SiC layers 2, 2' which are under coating layers, GdTbTeCo layers 3, 3' which are recording layers and SiC layers 4, 4' which are protective layers by sputtering on dough-nut shaped polycarbonate substrates 1, 1' having 130mmphi outside circumference and 15mmphi inside circumference are stuck to each other by the hot-melt adhesive agent layer 5. The hot-melt adhesive agent layer 5 having the compsn. added with the thermoplastic plastomer is used as the adhesive agent to stick the substrates 1, 1' of the optical recording medium to each other in such a manner and, therefore, the heat resistance is improved. The creep of the adhesive agent is prevented even if the medium is used at the high temp. The bleeding of the adhesive agent from the end face of the disk, etc. And the exfoliation thereof are effectively prevented and the high reliability is obtd. at a low cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178949A JPH07118097B2 (en) | 1987-07-20 | 1987-07-20 | Optical recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178949A JPH07118097B2 (en) | 1987-07-20 | 1987-07-20 | Optical recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6423433A true JPS6423433A (en) | 1989-01-26 |
JPH07118097B2 JPH07118097B2 (en) | 1995-12-18 |
Family
ID=16057467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62178949A Expired - Lifetime JPH07118097B2 (en) | 1987-07-20 | 1987-07-20 | Optical recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07118097B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02223035A (en) * | 1988-11-24 | 1990-09-05 | Mitsui Petrochem Ind Ltd | Information recording medium |
-
1987
- 1987-07-20 JP JP62178949A patent/JPH07118097B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02223035A (en) * | 1988-11-24 | 1990-09-05 | Mitsui Petrochem Ind Ltd | Information recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPH07118097B2 (en) | 1995-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071218 Year of fee payment: 12 |