JPS6423433A - Optical recording medium - Google Patents

Optical recording medium

Info

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
Application number
JP62178949A
Other languages
Japanese (ja)
Other versions
JPH07118097B2 (en
Inventor
Katsuhiko Takano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP62178949A priority Critical patent/JPH07118097B2/en
Publication of JPS6423433A publication Critical patent/JPS6423433A/en
Publication of JPH07118097B2 publication Critical patent/JPH07118097B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
JP62178949A 1987-07-20 1987-07-20 Optical recording medium Expired - Lifetime JPH07118097B2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02223035A (en) * 1988-11-24 1990-09-05 Mitsui Petrochem Ind Ltd Information recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
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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