JPS62141661A - 光情報記録媒体 - Google Patents

光情報記録媒体

Info

Publication number
JPS62141661A
JPS62141661A JP60281172A JP28117285A JPS62141661A JP S62141661 A JPS62141661 A JP S62141661A JP 60281172 A JP60281172 A JP 60281172A JP 28117285 A JP28117285 A JP 28117285A JP S62141661 A JPS62141661 A JP S62141661A
Authority
JP
Japan
Prior art keywords
substrates
general formula
recording layers
formulas
adhesive agent
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.)
Pending
Application number
JP60281172A
Other languages
English (en)
Inventor
Yutaka Ueda
裕 上田
Satoru Yamamuro
山室　哲
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP60281172A priority Critical patent/JPS62141661A/ja
Priority to US06/942,380 priority patent/US4711798A/en
Priority to DE19863642961 priority patent/DE3642961A1/de
Priority to GB8630004A priority patent/GB2186581B/en
Priority to FR868617588A priority patent/FR2591788B1/fr
Publication of JPS62141661A publication Critical patent/JPS62141661A/ja
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/256—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers improving adhesion between layers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C08F290/067—Polyurethanes; Polyureas
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
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    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G—PHYSICS
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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    • G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
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    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G11B7/2472—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes cyanine
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G11B7/2475—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes merocyanine
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2578—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
    • G—PHYSICS
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    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/259—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on silver
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔技術分野〕 本発明は封止型の光情報記録媒体に関する。
〔従来技術〕
ディスク状情報記録媒体の封正に用いられる接着剤には
、封入される記録材料に影＃を及はすことがないように
（１）硬化の除に反応副生成物のないこと、（２）溶剤
を言まないことが要求される。そのため逍冨はエポキシ
系接層剤が用いらオする。しかしながら、エポキシ系接
層剤を用いる場合、硬化の際の加熱によりプラスチック
基板が変形する。硬化に時間がかかる寺の問題がある。
また常温硬化型のエポキシ系接層剤を用いることが提茶
さｎているが硬化時間が長い点では同じである。
そこで、近年紫外線硬化型接層剤が注目されてきている
。これは上記（１）および（２）の性買を備えているた
めＭ望なものであるが、硬化反応がラジカル重合反応に
よるため大気中の酸素が２ジカルを消費してしまい表面
の硬化が遅いという欠点を有している。特に、いわゆる
エア・サンドイッチ型の封止ディスクにおいては、封止
内部の接着剤表面が硬化不足となシ未反応単量体成分が
封止内部に揮発し記録層に影響を及ぼす。その対策とし
て硬化雰囲気が酸素ｔ−除去すること具体的には蓋索雰
囲気中での硬化という方法が考えられるが、工業生産で
は設備が大がかりになるという問題がある。
一方％接層部に記録層が存在する封止型情報記録媒体に
おいては、基板上に存在している記録材料と基板との密
着強度があまシ強力でないために、記録層／基板界面か
ら層剥離が生じてくる危険性が大きいことは良く知られ
ている。
また％最近になって記録材料としてＭ１娩色素が種々開
発され、この中には溶剤燻布→によって極めて藺単に記
録層を形成することが可能なものがあり、このことが有
機色素を用いることの大きな利点のひとつとなっている
。上記ｍ剤塗布法の中でもスピンコード法によれば最も
精密な成膜がり馳であるが、このスピンコード法により
記録形成（＋−行う場合には接７Ｉｌｌｆ部に記録層を
設けないようにするマスキングは困難であるという欠点
がある。そこで接層剤Ｍ事前に接着部の記録層を除去す
ｎば光分な接層強度を確保できるのであるが、この場合
は記録材料の除去工程において発生ずる龜埃のために製
品記録体の欠陥品が増大する、すなわちエラー率が高く
なるという耕たな問題が伴う。
〔目的〕
本発明は上記問題に鑑みてなされたものであってその目
的は光情報記録媒体の封止倍頼性の向上にある。
〔構成〕
本発明名−は光情報記録媒体の封止用接層剤について抽
々検討した結果１表面硬化性のすぐれた下記一般式（１
）の化合物、記録材＋＋をｍ解するが記録材料の劣化の
小さい下記一般式（ＩＩ）の化合物および接７Ｍ独嵐を
ざりに同上するが記録材料の劣化の小ざい下記−収入（
（２）の化合物ｔそｎぞれ見出し不発明ｔな丁に至った
。
すなわち１本発明の上８ピ目的は２枚のディスク状基孜
のシち少なくとも１枚の片面に有囁色索記録層を有する
１対の基板を同心的に配置されｆＣ同周スば一すおよび
外周スは−サ七介して・！ｆｃｒｔ介さずに該記録層が
Ｖ′３鶴になるように貼合せる除に封止用接層剤として
下記一般式（１）および（ＩＩ）の化合物を含む徽層削
を用いることにより達成できる。
表面硬化性のすぐれた一般式（１）の化合物は（式中、
　ａｒｔ　（Ｊ３””−たはＥ（Ｒ）ｍを表わし、Ｒは
メナル基またはエチル基金表わし、ｍは１〜４を表わし
そしてｎは２〜４を表わす）にょつて表わされる。また
、接層部の記録材料を溶解するが記録材料に対する劣化
の小さい一般式（ｉｌｌの化合物は （式中、ｎは４〜８を表わす）によって表わされる。
なお、本発明においては一般式（１）および（ｎ）の化
合物金言む封止用接層剤を用いれは充分な接層強度を得
ることがでさるがさらに接層強度を向上させる目的で下
記一般式（１１０の化合物を上記一般式１１）および（
Ｉｔ）の化合物と組合せて用いてもよい。
一般式（１１Ｄ 〔式中、Ｌは−ＷＨ２０ＨｚＯ＋ｍ（ｍ＝　１〜４　）
　またはＣ！Ｈ２Ｃ（Ｃ１（）Ｈｉｌ（２０−七表わし
ｓ　ＲｌｒＬｃｎＩ（２Ｑ＋１（ｎ＝４〜１２　）ヲ表
わしそしてＲ２ｒｊＣ１’ＥたはＢｒ　（ｎ＝０．１ま
たＶｉ２）を表わす〕。
本発明における封止用接層剤は望ましくは一般式ｔ１）
の化合物　　４０〜７０重を俤一般式（ＩＩ）の化合物
　　１０〜６０重量％一般式（蜀の化合物　　　０〜３
０重量％を混合することにより、ｉ４裟することができ
る。
次に本発明の封止型光情報記録媒体を図面にもとづいて
説明する。
ディスク状基板１，１は例えば透明プラスチック板から
形成されその中心部に嵌合孔２を有し。
これら基板１，１の一方の片面には有情色素記録層６が
形成されている。これら基板１，１を同心的に配置した
内周スに一す４および外周スペーサ５ｔ−介して上記記
録層６，３を互いに内側に配置し且つ各々の記録層６．
６の相互対向面間に空間６が形成される状態に本発明の
封止用接着剤７を用いて貼合せる。
上記号機色素記録層３の代表例としてはシアニン色素、
メロシアニン色素などのポリメチン色素をあげることが
できるがこれのみに制限されるものではない。なお１図
示の構成の他に記録層３を基板１，１の両方の片面に形
成させる場合もある。
〔効果〕
上述のようにして構成された本発明の光情報記録媒体は
従来のエポキシ系接層剤を用いて貼合せたものに比べて
基板変形が少なく保存性にすぐれている。また、貼合せ
の際の硬化時間を短縮することができる。
〔実施例〕
以下に比較例とともに実施例をあげて本発明をさらに説
明するがこれに限定されるものではない。例中２部は重
量部によって示す。なお。
例中で示した一般式においてアクリロイル基ＣＨ２＝Ｃ
ＨＣ０−をＡと略記した。
実施例　１ 直径２００鴫および厚さ１ｍのポリメチルメタクリレー
ト基板２枚を用い、そのうちの１枚にフォトポリマ法に
よりブレグルーフを設けた後その上に一般式 で表わされる色素の１．２−ジクロロエタン溶液（色素
ａｌｔＥＡｅ０．７重量係）を６０　Ｏｒｐｍでスビン
コートシて記録層を設けた後、厚さ１諒のスは一すを介
して下記の組成を有する接着剤を用いて図示のように封
止した。
上述のようにして作製した封止ディスクを６０℃、９０
％Ｒ，Ｈ，の環境中に１０００時間放置後ディスク特性
を測定し九結果を以下の表に示す。
実姑例２〜１０および比較例１〜２ 実施例１における接着剤の代シに以下に示す組成の接着
剤を用いた以外には実施例１とまったく同様にして光デ
ィ戸りを作製した。なお。
谷実厖例および各比較例において光重合開始剤とし″′
Ｃ央翔例１と同様に２，２−ジメトキシ２−フェニルア
セトフェノンを用いた。６光ディスクについて特性を測
定した結果を以下の表に示す。
実施例　２ Ａ−ＯＨ２０Ｈ２０＋ｃｐＨ１９１５／／夾厖例　６ Ａ＋０Ｈ２ＣＨ２０４（３６Ｈ，、２５ｐ実画例　４ 実施例　５ 実施例　６ Ａ−ＧＨ＋Ｃ（ＯＨ）Ｈａ（２０−ｅａ（２＋、（ＸＥ
２Ｃ（ＱＨ）ＨＣＨｒＡ　　　２０　／／実施例　７ 実施例　８ Ａ（−ＯＨ２ＣＨ２０＋Ｃ９Ｈ１９５Ｑ　ｔｔ実施例　
９ 央厖例　１゜ 比較例　１ ？ Ａ−Ｃ）（２Ｃ！Ｈ２０＄　０９Ｈ１９２０１比較例　
２ 実＃Ｊ１　２６．０　５３　１００万２４．２　５１　
１００万回以上　　　　　　　　　回以上 ２　　　ｔｔ　　　　ｔｔ　　　　ｔｔ　　　２４．５
　　５１　　　　／１５　　　ｔｔ　　　　ｔｔ　　　
　／／　　　２３．８　　５０　　　　／１４　　　ｎ
　　　　ｔｔ　　　　ｔｔ　　　２４．０　　５１　　
　　／１５　　　ｔｔ　　　　ｓ　　　　ｙ　　　２４
．５　　５１　　　　／１１）　　　ｔｔ　　　　ｔｔ
　　　　ｔｔ　　　２４．５　　５２　　　１７　　　
ｇ　　　　Ｉ　　　　ｔｐ　　　２４．０　　５１　　
　　／１８　　ｔｔ　　　　ｔｔ　　　　ｔｔ　　　２
４．２　　５１　　　　ｐ実施例９　２６．０　５６　
１００万　２５．５　５０　１００万回以上　　　　　
　　　　　はμ上 １０＃　　　　　ｐ　　　　　〃２４．０５１　　　　
　ｉｐ比較例１　２６．０　　　５．５　　４５万回　
１９　　　４７　　１万回以２　　〃　　　〃　　　〃
　　保存中に剥離エラー率が増加し始めるまでの再生回
数を示した。
【図面の簡単な説明】
図は本発明による光情報記録媒体の画成の例を示す萌面
図である。 １・・・ｍ＆、２−・・嵌合孔、６・・・記録層、４・
・・１周スペーサ、５・・・外周スは−サ、６・・・空
間。 ・・・接着削。

Claims (1)

  1. 【特許請求の範囲】 ２枚のディスク状基板のうち少なくとも１枚の片面に有
    機色素記録層を有する１対の基板を同心的に配置された
    内周スペーサおよび外周スペーサを介してまたは介さず
    に該記録層が内側になるように接着剤を用いて貼合せた
    封止構造を有ししかも前記接着剤が下記一般式（ I ）
    および（II）の化合物場合により下記一般式（III）の
    化合物を含むことを特徴とする光情報記録媒体。 一般式（ I ） ▲数式、化学式、表等があります▼ （式中、φは▲数式、化学式、表等があります▼または
    ▲数式、化学式、表等があります▼を表わし、Ｒはメチ
    ル基またはエチル基を表わし、ｍは１〜４を表わしそし
    てｎは２〜４を表わす）、一般式（II） ▲数式、化学式、表等があります▼ （式中、ｎは４〜８を表わす）、 一般式（III） ▲数式、化学式、表等があります▼ 〔式中、Ｌは▲数式、化学式、表等があります▼（ｍ＝
    １〜４）または ＣＨ＿２Ｃ（ＯＨ）ＨＣＨ＿２Ｏ−を表わし、Ｒ＿１は
    Ｃ＿ｎＨ＿２＿ｎ＿＋＿１（ｎ＝４〜１２）を表わしそ
    してＲ＿２はＣｌまたはＢｒ（ｎ＝０、１または２）を
    表わす〕。
JP60281172A 1985-12-16 1985-12-16 光情報記録媒体 Pending JPS62141661A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP60281172A JPS62141661A (ja) 1985-12-16 1985-12-16 光情報記録媒体
US06/942,380 US4711798A (en) 1985-12-16 1986-12-16 Optical information recording medium
DE19863642961 DE3642961A1 (de) 1985-12-16 1986-12-16 Optisches informationsaufzeichnungsmaterial
GB8630004A GB2186581B (en) 1985-12-16 1986-12-16 Optical information recording medium comprising layer of acrylate copolymer.
FR868617588A FR2591788B1 (fr) 1985-12-16 1986-12-16 Support d'enregistrement optique d'informations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60281172A JPS62141661A (ja) 1985-12-16 1985-12-16 光情報記録媒体

Publications (1)

Publication Number Publication Date
JPS62141661A true JPS62141661A (ja) 1987-06-25

Family

ID=17635354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60281172A Pending JPS62141661A (ja) 1985-12-16 1985-12-16 光情報記録媒体

Country Status (5)

Country Link
US (1) US4711798A (ja)
JP (1) JPS62141661A (ja)
DE (1) DE3642961A1 (ja)
FR (1) FR2591788B1 (ja)
GB (1) GB2186581B (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3701801A1 (de) * 1986-01-22 1987-07-23 Ricoh Kk Optisches informationsaufzeichnungsmaterial
EP0555941B1 (en) * 1986-12-24 1997-07-30 Canon Kabushiki Kaisha Recording device and reproducing device
JPS63200340A (ja) * 1987-02-16 1988-08-18 Ricoh Co Ltd 光情報記録媒体
US5090009A (en) * 1988-07-30 1992-02-18 Taiyo Yuden Co., Ltd. Optical information recording medium
DE68921453T2 (de) * 1988-12-28 1995-07-13 Canon Kk Informationsaufzeichnungsträger.
EP0624870B1 (en) * 1989-03-27 1996-11-27 Mitsubishi Denki Kabushiki Kaisha Apparatus for making optical discs
JP2815659B2 (ja) * 1990-03-06 1998-10-27 株式会社リコー 光記録媒体
US5244775A (en) * 1991-03-20 1993-09-14 Hitachi, Ltd. Method of manufacturing an optical disc
US5315579A (en) * 1991-12-11 1994-05-24 Minnesota Mining And Manufacturing Company Recording disk hub bond
US5968708A (en) * 1994-04-20 1999-10-19 Ricoh Company, Ltd. Optical recording medium and method of producing the same
US5538774A (en) * 1994-07-29 1996-07-23 Minnesota Mining And Manufacturing Company Internally damped rotatable storage article
JPH09320116A (ja) * 1996-05-31 1997-12-12 Victor Co Of Japan Ltd 光ディスク
JPH10302310A (ja) * 1997-04-25 1998-11-13 Sony Corp 光学記録媒体及び光学ディスク装置
JP2001505349A (ja) * 1997-05-27 2001-04-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 情報担体の２層の間の接着材を硬化させる装置
JPH11246612A (ja) * 1998-03-03 1999-09-14 Teikoku Ink Seizo Kk 紫外線硬化性液状組成物及びこれを用いた製品
JP3988267B2 (ja) 1998-08-20 2007-10-10 Ｊｓｒ株式会社 光ディスク用接着剤

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355337A1 (fr) * 1976-06-18 1978-01-13 Thomson Brandt Procede de fabrication d'un support d'information inscriptible et lisible optiquement, et support ainsi obtenu
US4374077A (en) * 1980-02-01 1983-02-15 Minnesota Mining And Manufacturing Company Process for making information carrying discs
JPS57138064A (en) * 1981-02-16 1982-08-26 Fujitsu Ltd Optical disc medium
JPS59201246A (ja) * 1983-04-28 1984-11-14 Ricoh Co Ltd 光情報記録媒体
JPS60182530A (ja) * 1984-03-01 1985-09-18 Canon Inc 光学的記録媒体
JPS60239950A (ja) * 1984-05-15 1985-11-28 Ricoh Co Ltd 光情報記録媒体
JPS6192449A (ja) * 1984-10-12 1986-05-10 Fuji Photo Film Co Ltd エア−サンドイツチ型情報記録媒体

Also Published As

Publication number Publication date
GB2186581A (en) 1987-08-19
DE3642961A1 (de) 1987-06-25
FR2591788A1 (fr) 1987-06-19
US4711798A (en) 1987-12-08
DE3642961C2 (ja) 1990-03-08
FR2591788B1 (fr) 1992-05-15
GB8630004D0 (en) 1987-01-28
GB2186581B (en) 1990-04-04

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