JP4483802B2 - 光学記録媒体の記録層形成用色素、及びそれを用いた光学記録媒体、その光学記録媒体の記録方法 - Google Patents
光学記録媒体の記録層形成用色素、及びそれを用いた光学記録媒体、その光学記録媒体の記録方法 Download PDFInfo
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- JP4483802B2 JP4483802B2 JP2006050213A JP2006050213A JP4483802B2 JP 4483802 B2 JP4483802 B2 JP 4483802B2 JP 2006050213 A JP2006050213 A JP 2006050213A JP 2006050213 A JP2006050213 A JP 2006050213A JP 4483802 B2 JP4483802 B2 JP 4483802B2
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- ZBYYWKJVSFHYJL-UHFFFAOYSA-L cobalt(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Co+2].CC([O-])=O.CC([O-])=O ZBYYWKJVSFHYJL-UHFFFAOYSA-L 0.000 description 1
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- 125000006165 cyclic alkyl group Chemical group 0.000 description 1
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- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- HNQIVZYLYMDVSB-UHFFFAOYSA-N methanesulfonimidic acid Chemical group CS(N)(=O)=O HNQIVZYLYMDVSB-UHFFFAOYSA-N 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
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- 229940057867 methyl lactate Drugs 0.000 description 1
- JZMJDSHXVKJFKW-UHFFFAOYSA-N methyl sulfate Chemical compound COS(O)(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-N 0.000 description 1
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- BCDIWLCKOCHCIH-UHFFFAOYSA-N methylphosphinic acid Chemical compound CP(O)=O BCDIWLCKOCHCIH-UHFFFAOYSA-N 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- APHCVEVLYBPWIK-UHFFFAOYSA-N n-(2-hydroxyphenyl)nitrous amide Chemical compound OC1=CC=CC=C1NN=O APHCVEVLYBPWIK-UHFFFAOYSA-N 0.000 description 1
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- LKKPNUDVOYAOBB-UHFFFAOYSA-N naphthalocyanine Chemical compound N1C(N=C2C3=CC4=CC=CC=C4C=C3C(N=C3C4=CC5=CC=CC=C5C=C4C(=N4)N3)=N2)=C(C=C2C(C=CC=C2)=C2)C2=C1N=C1C2=CC3=CC=CC=C3C=C2C4=N1 LKKPNUDVOYAOBB-UHFFFAOYSA-N 0.000 description 1
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- 125000005029 naphthylthio group Chemical group C1(=CC=CC2=CC=CC=C12)S* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 1
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- 239000001007 phthalocyanine dye Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
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- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- 150000004685 tetrahydrates Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
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Images
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- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
<ヒドラジド化合物の合成>
4−メトキシベンズヒドラジド(アボガド社製)2.73gと2−ピリジンカルバルデヒド(和光純薬製)1.76gをメタノール50ml中で1時間加熱環流し、反応混合物からメタノールを留去し、トルエン再結晶を行い、生成した固体を濾別し、乳白色粉体の下記のヒドラジド化合物3.0gを得た(収率72%)。
前記で得られたヒドラジド化合物0.26gをメタノール10mlに溶解させ、トリエチルアミン0.11gを加えた後、更に酢酸コバルト(II)4水和物0.12gのメタノール溶液5mlを加え、1時間加熱環流させた後、生成した沈殿を濾別し、メタノール10mlで洗浄した後、濾別乾燥させ、Co2+を遷移金属カチオンとする黄茶色粉末の錯体.2gを得た(収率73%)。得られた錯体のアセトニトリル溶液中での紫外可視吸収スペクトルを図1に示す。
λmax (CH3 CN)=376nm(ε=49000)、重量減量開始温度=313℃
<溶解性試験>
塗布溶媒として、2,2,3,3−テトラフルオロプロパノールを用い、錯体の濃度を1.0重量%、及び1.5重量%として、20℃、常圧にて30分間超音波処理した後、濾紙(東洋濾紙社製定量濾紙「No.5C」)上に滴下し、室温で24時間乾燥させ、未溶解成分の結晶残渣が濾紙上に存在しているか否かを目視観察した。
<記録感度試験>
中心波長404nm、NA=0.85の半導体レーザー光を照射し、光学顕微鏡により記録ピットの形成が確認された最高記録感度を測定した。
<耐光性試験>
温度50℃、相対湿度50の条件下で、0.55W/m2 の照射強度でキセノンランプを40時間照射した後の記録層について、吸収極大波長における照射前後の吸光度から求めた。
<ヒドラジド化合物の合成>
4−ジメチルアミノベンズヒドラジド(アボガド社製)3.6gと2−ピリジンカルバルデヒド(和光純薬製)2.1gをメタノール50ml中で1時間加熱環流し、反応混合物を室温まで放冷し、析出した固体を濾別し、乳白色粉体の下記のヒドラジド化合物4.2gを得た(収率78%)。
前記で得られたヒドラジド化合物0.27gをメタノール20mlに溶解させ、トリエチルアミン0.11gを加えた後、更に酢酸コバルト(II)4水和物0.12gのメタノール溶液5mlを加え、1時間加熱環流させた後、生成した沈殿を濾別し、メタノール10mlで洗浄した後、濾別乾燥させ、Co2+を遷移金属カチオンとする茶色粉末の錯体0.15gを得た(収率50%)。得られた錯体のアセトニトリル溶液中での紫外可視吸収スペクトルを図2に示す。
λmax (CH3 CN)=408nm(ε=61000)、重量減量開始温度=316℃
図3に示されるクロロホルム溶液中での紫外可視吸収スペクトルを有する下記のシッフ塩基化合物の錯体を用い、該錯体を塩化メチレンに1.0重量%溶解させ、濾過によって微細なゴミを取り除いた後に、得られた溶液を直径120mm、厚さ1.2mmの日本ゼオン社製「ゼオネックス」基板上に滴下し、スピンコート法(4900rpm)により塗布し、80℃で30分間乾燥させることにより膜厚約50nmの記録層を形成し、光学記録媒体を作製した。
Claims (8)
- 遷移金属カチオンが第4周期の元素からなる請求項1又は2に記載の、光学記録媒体の記録層形成用色素。
- 遷移金属がコバルトである請求項1乃至3のいずれかに記載の、光学記録媒体の記録層形成用色素。
- 2,2,3,3−テトラフルオロプロパノールに対する溶解性が、20℃、常圧にて1.0重量%以上である請求項1乃至4のいずれかに記載の、光学記録媒体の記録層形成用色素。
- 基板上に膜厚50nmに形成した層を、温度50℃、相対湿度50%の条件下で、0.55W/m2 の照射強度でキセノンランプを40時間照射した後の色素残存率が80%以上である請求項1乃至5のいずれかに記載の、光学記録媒体の記録層形成用色素。
- 基板と、該基板上に形成された記録層とを少なくとも有し、該記録層が請求項1乃至6のいずれかに記載の、光学記録媒体の記録層形成用色素により形成されたものであることを特徴とする光学記録媒体。
- 請求項7に記載の光学記録媒体に対し、波長350〜530nmのレーザー光を用いて記録を行うことを特徴とする、光学記録媒体の記録方法。
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| JP4961458B2 (ja) * | 2009-06-10 | 2012-06-27 | 協立化学産業株式会社 | ヒドラジド化合物及びその製造方法、並びにそれを用いた硬化剤、樹脂組成物及び硬化体 |
| JP2011190433A (ja) * | 2010-02-16 | 2011-09-29 | Mitsubishi Kagaku Media Co Ltd | ヒドラジドキレート錯体化合物およびこれを用いた光学記録媒体 |
| JPWO2011142329A1 (ja) * | 2010-05-13 | 2013-07-22 | Khネオケム株式会社 | 錯化合物およびそれを含有する光記録媒体 |
| WO2012008468A1 (ja) * | 2010-07-14 | 2012-01-19 | 協和発酵ケミカル株式会社 | 錯化合物およびそれを含有する光記録媒体 |
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2006
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