JPH01307935A - Optical disk - Google Patents
Optical diskInfo
- Publication number
- JPH01307935A JPH01307935A JP63139686A JP13968688A JPH01307935A JP H01307935 A JPH01307935 A JP H01307935A JP 63139686 A JP63139686 A JP 63139686A JP 13968688 A JP13968688 A JP 13968688A JP H01307935 A JPH01307935 A JP H01307935A
- Authority
- JP
- Japan
- Prior art keywords
- cured
- layer
- adhesive
- disk
- heat
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 33
- 239000011241 protective layer Substances 0.000 claims abstract description 11
- 239000012790 adhesive layer Substances 0.000 claims abstract description 10
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 17
- 239000000758 substrate Substances 0.000 abstract description 12
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003085 diluting agent Substances 0.000 abstract description 3
- 230000009477 glass transition Effects 0.000 abstract description 3
- KOGSPLLRMRSADR-UHFFFAOYSA-N 4-(2-aminopropan-2-yl)-1-methylcyclohexan-1-amine Chemical compound CC(C)(N)C1CCC(C)(N)CC1 KOGSPLLRMRSADR-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000137 annealing Methods 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 4
- 210000003127 knee Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- FVCSARBUZVPSQF-UHFFFAOYSA-N 5-(2,4-dioxooxolan-3-yl)-7-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C(C(OC2=O)=O)C2C(C)=CC1C1C(=O)COC1=O FVCSARBUZVPSQF-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001755 magnetron sputter deposition Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- -1 curing accelerators Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、光を用いて情報の記録、再生または消去を行
う光円盤に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical disc that records, reproduces, or erases information using light.
［従来の技術］
従来の光円盤はロールコート法により貼り合わせた構造
のものが検討されている。また、片面型の光円盤におい
ては紫外線硬化樹脂を用いた貼り合わせが検討されてい
る。[Prior Art] Conventional optical discs having a structure in which they are bonded together using a roll coating method are being considered. Furthermore, for single-sided optical disks, bonding using ultraviolet curing resin is being considered.
［発明が解決しようとする課題］
しかし従来技術のロールコート法による貼り合わせでは
光円盤の耐熱性が低く、保護層や記録層にクラックを生
じやすく信頼性に問題があった。[Problems to be Solved by the Invention] However, when bonding by the conventional roll coating method, the heat resistance of the optical disc was low, and cracks were likely to occur in the protective layer and the recording layer, resulting in reliability problems.
また、紫外線硬化樹脂を用いた貼り合わせでは両面型の
光円盤は実現が非常に難しい。Furthermore, it is extremely difficult to create a double-sided optical disk by laminating using ultraviolet curing resin.
そこで本発明はこのような課題を解決するものでその目
的とするところは、ロールコート法で作成するより耐熱
性があり％ ８０℃や９０“Ｃの高温でも保護層や記録
層にクラックを生じることがなく、光円盤を１００℃以
上に加熱するため、接着層の熱特性が優れて、高温まで
接着力や力学的強度が変化しないし、基板のアニール効
果もでてくるため、基板をアニールしたあと記録層を成
膜してａ ／ Ｎを向上させるような、Ｏ／Ｎの向上も
可能な光円盤を提供するところにある。Therefore, the present invention is intended to solve these problems, and its purpose is to provide a film that is more heat resistant than those created using the roll coating method and that cracks occur in the protective layer and recording layer even at high temperatures of 80°C or 90"C. Since the optical disk is heated to over 100℃, the adhesive layer has excellent thermal properties, and the adhesive force and mechanical strength do not change even at high temperatures.The substrate also has an annealing effect, so it is not necessary to anneal the substrate. The object of the present invention is to provide an optical disk that can improve the O/N by forming a recording layer after that to improve the a/N.
［課題を解決するための手段］
本発明は光を用いて情報の記録、再生または消去を、行
なう光円盤において、透光性支持体の上に記録層及び保
護層からなる記録層部を成膜したものを貼り合わせた６
′４造であり、接着層が熱により硬化可能なエポキシ樹
脂を主成分として、前記光円盤をｉ ｏ ｏ ’ａ以上
に加熱したことを特徴とする。[Means for Solving the Problems] The present invention provides an optical disc that records, reproduces, or erases information using light, in which a recording layer portion consisting of a recording layer and a protective layer is formed on a transparent support. 6. Pasting the film together
'4 construction, the adhesive layer is mainly composed of an epoxy resin that can be cured by heat, and the optical disc is heated to a temperature of io o'a or more.
本発明では光円盤を１００℃以上に加熱するが射出成形
用のポリカーボネートはガラス転移温度が１６０℃から
１５０℃位にあるので、記録層や保護層にクラックの入
らない程度に１１０℃から１２０℃程度にＩＪＯ熱する
とよい。加熱時間は用いる接着剤にもよるが２から１０
時時間区が適当である。In the present invention, the optical disk is heated to 100°C or higher, but since polycarbonate for injection molding has a glass transition temperature of about 160°C to 150°C, the temperature is heated to 110°C to 120°C to an extent that does not cause cracks in the recording layer or protective layer. It is best to heat the IJO to a certain degree. Heating time varies from 2 to 10 depending on the adhesive used.
The time zone is appropriate.
また、本発明において用いるエポキシ系の主剤は常温に
おいて粘度が５０００ｃｐｓ以下のものを用いた方が作
業性がよく、貼り合わせやすいし脱泡も容易である。泡
を多く含んだままで貼り合わせると、接着剤の硬化に伴
う応力により信号に悪影響を及ぼしたり、信頼性の低下
をきたす。Further, it is better to use the epoxy base resin used in the present invention with a viscosity of 5000 cps or less at room temperature, because it is easier to work with, and easier to bond and defoam. If the adhesive is laminated with a large amount of bubbles, the stress caused by the curing of the adhesive will adversely affect the signal and reduce reliability.
また、本発明で用いる接着剤の主剤は低粘度で硬化物の
ガラス転移温度が高いものがよいので、ビスフェノール
Ｆ７１％やビスフェノールＡ系に少量の反応性希釈剤を
添加したものなどがよく、硬化剤としてはイミダゾール
系やメンタンジアミンのような環状脂肪族アミン系がポ
ットライフや硬化物の耐熱性の点から好ましく、その添
加量は主剤に対して１％から１０％が適当である。１％
以下では接着剤の硬化に時間がかかったり、接着剤の硬
化が不完全となりやすい。１０％以上では接着剤のポッ
トライフが短くなり機械を用いた塗布が難しくなったり
、硬化物の耐熱性が低下したりする。この添加量と主剤
の成分により硬化物の特性が維持できて、ポットライフ
が５時間以上になるように調節するとよい。硬化剤は常
温で液体のものが主剤との混合が容易になるため、常温
で固形物のものは常温で液体のものと混合したりして用
いるとよい。In addition, the main agent of the adhesive used in the present invention should have a low viscosity and a high glass transition temperature of the cured product, so it is preferable to use a mixture of bisphenol F 71% or bisphenol A with a small amount of reactive diluent added. As the agent, imidazole type or cycloaliphatic amine type such as menthanediamine is preferable from the viewpoint of pot life and heat resistance of the cured product, and the appropriate amount of addition is 1% to 10% based on the base agent. 1%
If the adhesive is used below, it may take a long time to cure the adhesive, or the adhesive may be incompletely cured. If it exceeds 10%, the pot life of the adhesive becomes short, making it difficult to apply using a machine, and the heat resistance of the cured product decreases. It is preferable to adjust the amount of addition and the components of the main agent so that the properties of the cured product can be maintained and the pot life is 5 hours or more. A curing agent that is liquid at room temperature is easier to mix with the main agent, so it is preferable to mix a curing agent that is solid at room temperature with a curing agent that is liquid at room temperature.
［実施例］ 以下本発明について図面に基づいて詳細に説明する。[Example] The present invention will be explained in detail below based on the drawings.
第１図は本発明になる光円盤の基本構成図である。１及
び６はポリカーボネートの基板、２及び７は５ｉＡＩＮ
の第１保護層、３及び８はＮｄＤｙＦｅｏｏの記録層、
４及び９は５ｉＡＩＮの第２保護層、５は本発明になる
接着層である。５の接着層に用いたエポキシは主剤とし
て大日本インキ化学工業のエピクロンＳ−１２９を用い
て、硬化剤は２−エチル−４−メチルイミダゾールを用
いた。主剤と硬化剤の配合比は重量で２０＝１とした。FIG. 1 is a basic configuration diagram of the optical disk according to the present invention. 1 and 6 are polycarbonate substrates, 2 and 7 are 5iAIN
3 and 8 are recording layers of NdDyFeoo,
4 and 9 are second protective layers of 5iAIN, and 5 is an adhesive layer according to the present invention. For the epoxy used in the adhesive layer in No. 5, Epiclon S-129 manufactured by Dainippon Ink and Chemicals was used as the main component, and 2-ethyl-4-methylimidazole was used as the curing agent. The blending ratio of the main agent and curing agent was 20=1 by weight.
次に、衣１に第１図に示す構成の光円盤において、加熱
温度を種々変更して貼り合わせたときの８０℃９０％Ｒ
Ｈ下で３０００時間耐候性試験後のピットエラーレート
を耐候性試験前のピットエラーレートで規格化した値と
Ｏ／Ｎ及びその時の性状を示す。Next, in the light disk of the configuration shown in Fig. 1, the heating temperature was changed variously and the temperature was 80°C, 90% R.
The value obtained by normalizing the pit error rate after a 3000-hour weathering test under H with the pit error rate before the weathering test, the O/N, and the properties at that time are shown.
第１図及び表１に示した光円盤はすべて以下のものを用
いた。射出圧縮成型により１．６μｒｎＪｊツチでスパ
イラル状のトラッキング用の溝を形成したポリカーボネ
ートの基板の溝を形成した側に５ｉＡ１の焼結ターゲッ
トを用いたＲＦ’反応マグネトロンスパッタ法により８
００Ｘ成膜した後、ＮｄＤ７ＩＭ３００の合金ターゲッ
トを用いたＤＯマグネトロンスパッタ法により９００久
成膜して、さらにその上に５ｉＡｌの合金ターゲットを
用いたＲＦ反応マグネトロンスパッタ法により８００大
成摸したものを２枚用いて前述の接着剤を用いて貼り合
わせた。貼り合わせ方法は、ロールフート法以外は基板
の記録層部が形成されている側に接着剤をドーナツ状に
塗布した後、真空系内において脱泡して真空系内で別の
基板と貼り合わせて、上下の基板の中心穴が合うように
して、１２時間放置して６０ ’Ｏで５時間加熱して接
着剤を仮硬化させた後、加熱温度を種々変更して接着剤
を硬化させた。The following optical discs shown in FIG. 1 and Table 1 were all used. A spiral tracking groove of 1.6 μrnJj was formed by injection compression molding on the grooved side of a polycarbonate substrate by RF' reaction magnetron sputtering using a 5iA1 sintered target.
After forming a 00X film, a 900-meter film was formed using the DO magnetron sputtering method using an alloy target of NdD7IM300, and then two 800-layer films were formed using the RF reaction magnetron sputtering method using a 5iAl alloy target on top of that. They were bonded together using the adhesive described above. The bonding method, other than the roll foot method, is to apply adhesive in a donut shape to the side of the substrate where the recording layer is formed, degas it in a vacuum system, and then bond it to another substrate in a vacuum system. The center holes of the upper and lower substrates were aligned, and the adhesive was temporarily cured by heating at 60'O for 5 hours after being left for 12 hours, and then the adhesive was cured by varying the heating temperature.
表 １
０／Ｎ：ピット長０．９／４７７１，１ ８００ｒｐｍ
ＯＡ’Ｖ、記録周波数２ＭＨｚ
Ａ：エピクロンＳ−１２９（９６）ｔエピキュアよりＭ
ニー１２（４）
Ｂ：エピクロン８３０−８（５０）、二ピコ−１−８０
７（４５） エビキュアＢＭニー１２Ｃ：エピクロン
８５０（４０） エピクロン８５５（５０） ｒ−
グリシドキシプロビルトリメトキシシラン（５） エビ
キュアよりＭニー１２（５）
Ｄ：エピクロンＳ−１２９（５０） エピコート８１
５（５０） エピクロン５２０（１５） エビキュア
ＫＭニー２４（５）
Ｅ：エピクロンＳ−１２９（４０） エピコート８０
２（４０） エピクロン８３０ （１５） ２−エチ
ル−４−メチルイミダゾールＦ：エピクロン８５０−８
（５０） エピコート８１５（４５） エビキュア
よりＭニー以上（）は重量パーセント
エピクロンＳ−１２９大日本インキ化学工業エピクロン
８３０ 〃
エビクロン８３０−Ｓ
エピクロン８５５
エピクロン５２０
エピコート８０７ Ｍ化シェルエポキシエピコー
ト８０２ 〃
エピコート８１５ 〃
エピキュアよりＭニー１２
エピキュアＢＭエ −１２
エピキュアＥＭ工 −２４゛
表１の結果から分かるように、本発明の光学的情報記録
媒体はａ ／ Ｎが高く、８０℃９０％ＲＨという条件
下でもピットエラーレートが変化しないし、高温での接
着層の力学的性質がよいので記録層や保護層にクラック
を生じることがない長期信頼性のある光円盤であること
がわかる。Table 1 0/N: Pit length 0.9/4771, 1 800 rpm
OA'V, recording frequency 2MHz A: Epicron S-129 (96) t Epicure M
Knee 12 (4) B: Epicron 830-8 (50), Nipico-1-80
7 (45) Ebicure BM Knee 12C: Epicron 850 (40) Epicron 855 (50) r-
Glycidoxyprobyltrimethoxysilane (5) Mnee 12 from Ebicure (5) D: Epicron S-129 (50) Epicote 81
5 (50) Epicron 520 (15) Ebicure KM Knee 24 (5) E: Epicron S-129 (40) Epicort 80
2 (40) Epiclon 830 (15) 2-ethyl-4-methylimidazole F: Epiclon 850-8
(50) Epicron 815 (45) M knee or higher than Ebicure () is weight percentage Epicron S-129 Dainippon Ink & Chemicals Epicron 830 〃 Evicuron 830-S Epicron 855 Epicron 520 Epicuron 807 M shell epoxy Epicuron 802 〃 Epicuron 815 〃 Epicure M-12 Epicure BM-12 Epicure EM-24 As can be seen from the results in Table 1, the optical information recording medium of the present invention has a high a/N, even under conditions of 80°C and 90% RH. It can be seen that the pit error rate does not change and the mechanical properties of the adhesive layer are good at high temperatures, so it is an optical disk with long-term reliability that does not cause cracks in the recording layer or protective layer.
尚、本発明はこれらの実施例に限定されるものではなく
、本発明の主旨を逸脱しない限り種々の変更は可能であ
る。例えば本発明では記録層としてＮｄＤｙＦｅＣ０層
を用いたが、ＮｄＤｙＴｂＶｅｔｏ層、ＧｄＴｂＦｅｆ
１７ｏ層、ＴｂＦｅ０゜層等の光磁気記録層の他にＴθ
−Ｔｅ０１層。Note that the present invention is not limited to these embodiments, and various changes can be made without departing from the spirit of the present invention. For example, in the present invention, an NdDyFeC0 layer is used as the recording layer, but an NdDyTbVeto layer, a GdTbF
In addition to magneto-optical recording layers such as 17o layer and TbFe0° layer, Tθ
-Te01 layer.
工ｎ −Ａ ｇ層等の光層変化型の記録層を用いても何
等問題はない。また保護層も５ｉＡＩＮ層の他にＳｉＮ
層、Ｓｉ０層、ＡＩＮ層等を用いてもよい。さらに本実
施例では両面型の光円盤を例にとっているが、例えば記
録層を成膜した基板と記録層のない基板とを貼り合わせ
るような片面型の光円盤記であってもよい。本発明にお
いては接着剤は主剤と硬化剤のみの組合せであったが、
硬化物の物性があまり変化しない程度に反応性希釈剤。There is no problem in using a recording layer of optical layer change type, such as a n-Ag layer. In addition to the 5iAIN layer, the protective layer is also made of SiN.
A layer, a Si0 layer, an AIN layer, etc. may also be used. Further, in this embodiment, a double-sided optical disc is used as an example, but a single-sided optical disc may be used, for example, in which a substrate on which a recording layer is formed and a substrate without a recording layer are bonded together. In the present invention, the adhesive was a combination of only a base agent and a curing agent, but
A reactive diluent that does not significantly change the physical properties of the cured product.
硬化促進剤、充填剤、シランカップリング剤、レベリン
グ剤、安定剤などの添加剤を添加してもよい。Additives such as curing accelerators, fillers, silane coupling agents, leveling agents, and stabilizers may be added.
［発明の効果］ 本発明の光円盤は以下のような効果を有する。[Effect of the invention] The optical disc of the present invention has the following effects.
（１）基板をアニールしたことと同様にｏ ／ Ｎが向
上する。(1) O/N improves in the same way as when the substrate is annealed.
（２） ロールコート法で作成するより耐熱性があり
、８０℃や９０℃の高温でも保護層や記録層にクラック
を生じることがない。(2) It is more heat resistant than those produced by roll coating, and does not cause cracks in the protective layer or recording layer even at high temperatures of 80°C or 90°C.
（３）接着剤の硬化物の耐熱性が高く、１００℃以上に
加熱するため接着層の熱的、力学的性質がよい。(3) The cured adhesive has high heat resistance, and the adhesive layer has good thermal and mechanical properties because it can be heated to 100°C or higher.
（４） 両面型の光円盤が容易に実現できる。(4) A double-sided optical disc can be easily realized.
第１図は、本発明の光円盤の基本構成図である１、６・
・・・・・ポリカーボネートの基板２．７・・・・・・
Ｓ １ＡＩＮの第１記録層Ｓ 、 ８−’−”Ｎ ｄ
Ｄｙ Ｆ ８００の記録層４．９・・・・・・５ｉＡＩ
Ｎの第２保り層５ ・・・・・・接着層
以上
出願人 セイコーエプソン株式会社
代理人 弁理士 上柳雅誉（他１名）FIG. 1 is a basic configuration diagram of the optical disc of the present invention.
・・・・・・Polycarbonate substrate 2.7・・・・・・
First recording layer S of S1AIN, 8-'-”Nd
Dy F 800 recording layer 4.9...5iAI
N's second protective layer 5 ...adhesive layer and above Applicant Seiko Epson Co., Ltd. Agent Patent attorney Masayoshi Kamiyanagi (1 other person)
Claims (1)
において、透光性支持体の上に記録層及び保護層からな
る記録層部を成膜したものを貼り合わせた構造であり、
接着層が熱により硬化可能なエポキシ樹脂を主成分とし
て、前記光円盤を１００℃以上に加熱したことを特徴と
する光円盤。In an optical disc that records, reproduces, or erases information using light, it has a structure in which a recording layer portion consisting of a recording layer and a protective layer is deposited on a transparent support, and
1. A light disk, characterized in that the adhesive layer has an epoxy resin as a main component that can be cured by heat, and the light disk is heated to 100° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63139686A JPH01307935A (en) | 1988-06-07 | 1988-06-07 | Optical disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63139686A JPH01307935A (en) | 1988-06-07 | 1988-06-07 | Optical disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01307935A true JPH01307935A (en) | 1989-12-12 |
Family
ID=15251068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63139686A Pending JPH01307935A (en) | 1988-06-07 | 1988-06-07 | Optical disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01307935A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254438A (en) * | 1989-03-27 | 1991-11-13 | Mitsubishi Electric Corp | Optical disk |
| KR100595242B1 (en) * | 1999-07-08 | 2006-07-03 | 엘지전자 주식회사 | production method by optical disk bonding |
| WO2017025687A1 (en) * | 2015-08-13 | 2017-02-16 | Roquette Freres | Use of a composition of low-viscosity bis-anhydrohexitol ethers as a reactive diluent for crosslinkable resin, adhesive, coating and matrix compositions for composites |
-
1988
- 1988-06-07 JP JP63139686A patent/JPH01307935A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03254438A (en) * | 1989-03-27 | 1991-11-13 | Mitsubishi Electric Corp | Optical disk |
| KR100595242B1 (en) * | 1999-07-08 | 2006-07-03 | 엘지전자 주식회사 | production method by optical disk bonding |
| WO2017025687A1 (en) * | 2015-08-13 | 2017-02-16 | Roquette Freres | Use of a composition of low-viscosity bis-anhydrohexitol ethers as a reactive diluent for crosslinkable resin, adhesive, coating and matrix compositions for composites |
| FR3040059A1 (en) * | 2015-08-13 | 2017-02-17 | Roquette Freres | USE OF A LOW VISCOSITY BIS-ANHYDROHEXITOL ETHERS COMPOSITION AS A REACTIVE DILUENT FOR CROSS-LINKABLE COMPOSITIONS OF RESINS, ADHESIVES, COATINGS AND COMPOSITE MATRIXES |
| US10913817B2 (en) | 2015-08-13 | 2021-02-09 | Roquette Freres | Use of a composition of low-viscosity bis-anhydrohexitol ethers as a reactive diluent for crosslinkable resin, adhesive, coating and matrix compositions for composites |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100264705B1 (en) | Optical disk and its manufacturing method | |
| US20200172676A1 (en) | Heat Resistant Polyimide Film and Preparation Method Thereof | |
| US5064712A (en) | Laminated lens structure | |
| JPH01307935A (en) | Optical disk | |
| JP2815659B2 (en) | Optical recording medium | |
| JPH05279491A (en) | Composite article and method for bonding for forming the same | |
| JPH01267856A (en) | Optical information recording medium | |
| JP2815413B2 (en) | Resin composition for semiconductor encapsulation | |
| JPH01264640A (en) | Optical recording medium | |
| JPS6257420A (en) | Curable powder composition | |
| JPH02185736A (en) | Optical recording disk | |
| JPH06198669A (en) | Method for resin sealing of electronic parts | |
| CN115322719B (en) | Preliminary fixable epoxy adhesive and preparation and use methods thereof | |
| JPH0420558A (en) | Epoxy resin composition for sealing semiconductor | |
| JPH04320359A (en) | Semiconductor device | |
| JPH023117A (en) | Optical information recording disk | |
| JP3090413B2 (en) | Liquid sealing material | |
| JPH02173035A (en) | Epoxy resin composition and semiconductor device sealed therewith | |
| JPS645630B2 (en) | ||
| JPH0531884B2 (en) | ||
| JP2017082144A (en) | Thermosetting multilayer adhesive sheet and adhesive method | |
| JPH03219451A (en) | Magneto-optical recording medium | |
| JPH03203828A (en) | Optical information recording medium | |
| JPS63124248A (en) | Production of optical disk | |
| EP0508579A1 (en) | Thermosetting powder composition |