JP2011026597A - ベンズイミダゾロン顔料のナノサイズ粒子 - Google Patents
ベンズイミダゾロン顔料のナノサイズ粒子 Download PDFInfo
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- JP2011026597A JP2011026597A JP2010166636A JP2010166636A JP2011026597A JP 2011026597 A JP2011026597 A JP 2011026597A JP 2010166636 A JP2010166636 A JP 2010166636A JP 2010166636 A JP2010166636 A JP 2010166636A JP 2011026597 A JP2011026597 A JP 2011026597A
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- Prior art keywords
- pigment
- benzimidazolone
- solution
- coupling
- particles
- Prior art date
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- 239000000049 pigment Substances 0.000 title claims abstract description 173
- MYONAGGJKCJOBT-UHFFFAOYSA-N benzimidazol-2-one Chemical compound C1=CC=CC2=NC(=O)N=C21 MYONAGGJKCJOBT-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000002105 nanoparticle Substances 0.000 title description 44
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- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 150000003222 pyridines Chemical class 0.000 claims abstract description 17
- 230000002776 aggregation Effects 0.000 claims abstract description 10
- 238000004220 aggregation Methods 0.000 claims abstract description 7
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- 239000008367 deionised water Substances 0.000 description 33
- 229910021641 deionized water Inorganic materials 0.000 description 33
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- 238000007086 side reaction Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- BXQYQBFZTKKPHI-UHFFFAOYSA-M sodium;nitrite;hydrochloride Chemical compound [Na+].Cl.[O-]N=O BXQYQBFZTKKPHI-UHFFFAOYSA-M 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000004347 surface barrier Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Abstract
【解決手段】ナノスケール顔料粒子組成物は、ベンズイミダゾロン顔料と、ベンズイミダゾロン顔料と非共有的に会合し、置換ピリジン誘導体を含む立体的に嵩高い安定剤化合物と、を含み、会合した安定剤の存在が、粒子の成長および凝集の程度を制限して、ナノスケール顔料粒子をもたらす。
【選択図】なし
Description
式5:
一般式5のピリジン誘導体は、同じものか異なるものであり得る置換基R1〜R5を有し、H、アミド基(−NH−(C=O)−R’)および(−(C=O)−NH−R’);アミン基(−NH−R’);尿素基(−NH−(C=O)−NH−R’);カルバメートまたはウレタン基(−NH−(C=O)−O−R’)および(O−(C=O)−NH−R’);エステル基(−(C=O)−O−R’)または(−O−(C=O)−R’);オリゴ−もしくはポリ−[エチレングリコール]等の分枝状もしくは直鎖状アルキレンオキシ鎖;およびアルコキシ基(−OR’)を挙げることができ、但し、さまざまな官能基のすべてにおいて基R’は、アルキル基中にO、S、またはN等のヘテロ原子を含んでいてもよい直鎖状もしくは分枝状アルキルまたは脂環式の基である。
式6:
であり、式中、各Xは、独立して、−N(H)−または−O−を表し、R1およびR2は、独立して、アルキル基内にO、S、またはN等のヘテロ原子を含有してもよい直鎖状もしくは分枝状アルキルまたは脂環式基を表す。R1およびR2基の具体例としては、
及び
が挙げられ、ここで、mおよびnは、独立して、0〜約30の整数を表す。
におけるような2つ以上のピリジル基を架橋する2官能性構造物であり得、RyおよびRzとしては、−(CH2)n;−X−(CH2)nX;−[(XCH2CH2)n]X−;−[(C=O)−(CH2)n−(C=O)]−;−X−[(C=O)−(CH2)n−(C=O)]−X−;−X−[(C=O)−X−(CH2)n−X−(C=O)]−X−;−[(C=O)−X−(CH2)n−X−(C=O)]−(但し、Xは、O、S、またはNHとして定義され、整数nは、1〜50である);および、基Rzについては大きな分枝状のアルキル化された基、例えば:
及び
(但し、X、X1およびX2は、O、S、またはNHのいずれかであると定義され、X1およびX2は同じ物であってもなくてもよい)が挙げられる。
Pigment Yellow 151の合成(立体安定剤または界面活性剤なし):
250mLの丸底フラスコに、アントラニル酸(6.0g、Sigma−Aldrich、Milwaukee、WI(ウィスコンシン州)から入手できる)、脱イオン水(80mL)および5MのHCl水溶液(20mL)を加える。その混合物を室温ですべての固体が溶解するまで撹拌し、次いで0℃に冷却する。亜硝酸ナトリウム(3.2g)の溶液を脱イオン水(8mL)に溶解し、次に、アントラニル酸の溶液に、0〜5℃の混合物内の内部温度範囲を維持する速さで滴下して加える。ジアゾ化が完了したら、その溶液をさらに0.5時間撹拌する。カップリング成分のための2番目の混合物を、500mLの容器に脱イオン水(100mL)および水酸化ナトリウム(5.5g)を加え、撹拌して溶解させ、次に5−(アセトアセトアミド)−2−ベンズイミダゾロン(10.5g、TCI America、Portland、OR(オレゴン州)から入手できる)を加え、その間、すべての固体が溶解するまで勢いよく撹拌する。氷酢酸(15mL)、5MのNaOH溶液(30mL)および脱イオン水(200mL)を含有する別の溶液を、次に、カップリング成分のアルカリ溶液中に、勢いよく撹拌しながら滴下して加えると、その後そのカップリング成分は粒子の白色懸濁液として沈殿し、その混合物は弱酸性となる。カップリング反応のため、冷却したジアゾ化混合物を、勢いよく撹拌しながらカップリング成分の懸濁液中に滴下してゆっくり加え、顔料の赤味のある黄色のスラリーを生成させる。そのスラリーを室温でさらに2時間撹拌し、その時間の後、その顔料を真空濾過によって単離し、数容積の脱イオン水(250mLの3分割)により洗浄し、次に凍結乾燥させる。顔料の赤味のある黄色の顆粒が得られ、TEM画像は、約200nmから約500nmまでの範囲の長さで高いアスペクト比を有する棒の形をした粒子の大きな凝集体を示す。
Pigment Yellow 151の合成(2−エチルヘキサノール界面活性剤の存在下):
250mLの丸底フラスコに、アントラニル酸(3.0g、Sigma−Aldrich、Milwaukee、WIから入手できる)、脱イオン水(40mL)および5MのHCl水溶液(10mL)を加える。その混合物を室温ですべての固体が溶解するまで撹拌し、次いで0℃に冷却する。亜硝酸(1.6g)の溶液を脱イオン水(5mL)に溶解し、次に、アントラニル酸の溶液に、0〜5℃の混合物内の内部温度範囲を維持する速さで滴下して加える。ジアゾ化が完了したら、その溶液をさらに0.5時間撹拌する。2番目の混合物を、250mLの容器に脱イオン水(40mL)および水酸化ナトリウム(2.8g)を加え、撹拌して溶解させ、次にこの溶液に勢いよく撹拌しながら5−(アセトアセトアミド)−2−ベンズイミダゾロン(5.25g、TCI America、Portland、ORから入手できる)を加え、続いてその後、界面活性剤としての2−エチルヘキサノール(4mL、Sigma−Aldrich、Milwaukee、WIから入手できる)を加え、すべての固体が溶解するまで撹拌することによって調製する。氷酢酸(7.5mL)、5MのNaOH溶液(15mL)および脱イオン水(80mL)を含有する別の溶液を、次に、カップリング成分のアルカリ溶液中に、勢いよく撹拌しながら滴下して加えると、その後そのカップリング成分は粒子の白色懸濁液として沈殿し、その混合物は弱酸性となる。冷たいジアゾ化した混合物を、勢いよく撹拌しながらカップリング成分の懸濁液中に滴下して加え、顔料固形物の暗黄色のスラリーを生成させ、それを室温でさらに2時間撹拌すると、その時間の後は、その顔料は明るい黄色である。その顔料固形分を真空濾過によって集め、3容積の脱イオン水(それぞれ200mL)により、次にメタノール(50mL)ですすぎ、最終のすすぎは脱イオン水(50mL)を用い、その後に凍結乾燥させる。顔料の鮮やかな黄色の顆粒が得られ、TEM画像は、約75nmから約250nmまでの範囲の粒子直径を有する小さめの棒の形をした粒子の凝集体を示す。
Pigment Yellow 151の従来型の合成:
この比較例は、ドイツ国特許DE3140141に記載されている従来法に従う。
連続的添加法によるPigment Yellow 151の合成(立体安定剤の補助なし):
0.71g(5.18mmol)のアントラニル酸、10mLの脱イオン水、および2.6mLの5Mの塩酸を、温度計を備えた3つ口丸底フラスコ中で磁気撹拌により撹拌しながら混合する。その透明な溶液を、0℃より下まで冷却した後、1mLの氷のように冷たい5.8MのNaNO2(5.79mmol)の水溶液を、内温を0℃より下に維持する速さで加える。30分後、その冷たいジアゾ溶液を、次の方法で調製されたカップリング成分の懸濁液に室温で、ゆっくり滴下しながら加える。
表3の置換ピリジン立体安定剤#20の合成:
100mLの丸底フラスコ中に、1.02g(6.09mmol)の2,6−ピリジンジカルボキリレート(Sigma−Aldrich、Milwaukee、WI)および20mLの無水のテトラヒドロフラン(THF)を加える。その懸濁液を不活性雰囲気下で撹拌する。この懸濁液に、2.2mL(0.0252mol)の塩化オキサリル(Sigma−Aldrich、Milwaukee、WI)を滴下して加え、続いて、触媒として、3滴のN,N−ジメチルホルムアミド(DMF)を加える。10分後、その固体のすべてが完全に溶解し、室温での撹拌をさらに1時間にわたって継続する。その溶媒を次に回転蒸発によって除去し、二酸塩化物生成物のその油状残留物を真空中で乾燥させる。
表4の置換ピリジン立体安定剤#23の合成:
置換ピリジン立体安定剤を用いる連続的添加方法によるPigment Yellow 151ナノ粒子の合成:
アントラニル酸のジアゾ化を、0.72g(5.25mmol)のアントラニル酸、10mLの脱イオン水、2.6mLの5Mの塩酸、1mLの5.9MのNaNO2(5.93mmol)を使用することを除いて比較例4と同じ手順で行う。30分の撹拌後、その冷たいジアゾニウム塩溶液を、次の方法で調製されたカップリング成分の懸濁液に室温で、ゆっくり加える。
置換ピリジン立体安定剤を用いる連続的添加方法によるPigment Yellow 151ナノ粒子の合成:
1.79g(13.1mmol)のアントラニル酸、30mLの脱イオン水、および6.5mLの5Mの塩酸を、温度計を備えた3つ口丸底フラスコ中に撹拌しながら混合する。その透明な溶液を、0℃より下まで冷却した後、2.5mLの冷たい5.7MのNaNO2(15.7mmol)の水溶液を、内温を0℃より下に維持する速さで加える。その冷たいジアゾ溶液を、さらに30分撹拌し、その後、それを、次の方法で調製されたカップリング成分の懸濁液に室温で、ゆっくり加える。
置換ピリジン立体安定剤を用いる連続的添加方法によるPigment Yellow 151ナノ粒子の合成:
2.0g(14.6mmol)のアントラニル酸、35mLの脱イオン水、および8.5mLの5Mの塩酸を、温度計を備えた3つ口丸底フラスコ中に撹拌しながら混合する。その透明な溶液を、0℃より下まで冷却した後、6mLの冷たい2.55MのNaNO2(15.3mmol)の水溶液を、内温を0℃より下に維持する速さで加える。その冷たいジアゾ溶液を、さらに30分撹拌し、その後、それを、次の方法で調製されたカップリング成分の懸濁液に室温で、ゆっくり加える。
(1)請求項1に記載の組成物であって、ジアゾ成分の基が、DC1〜DC7:
および
からなる群から選択され、
但し、
*は、ジアゾ成分前駆物質中のアミノ基(−NH2)に対する結合の点および顔料構造中のアゾ基(−N=N−)に対する結合の点を示し、
R1〜R8は、独立して、H;ハロゲン;n=0〜6である(CH2)nCH3;OH;R’がH、(CH2)nCH3、またはC6H5を表し、nが1から約6までの数を表すアルコキシル基−OR’;CO2H;CO2CH3;n=0〜5であるCO2(CH2)nCH3;CONH2;R’が、独立して、H、C6H5、n=0〜12である(CH2)nCH3、またはn=1〜6である(CH2)nN(CH3)2である(CO)R’;OCH3;OCH2CH2OH;NO2;SO3H;または次の構造の基:
および
のいずれかを表し、
DC2およびDC3において、R’は、H、(CH2)nCH3、またはC6H5を表し、nが1から約6までの数を表し、
基Aは、n=0〜6である−(CH2)n−;n=0〜6である−[O−(CH2)n−O]−;n=0〜6およびR=HまたはCH3である−[O−(CH2CHR)n]−;−(C=O)−;O;S;n=1〜6である−(CH2)n−(C=O)−;およびn=1〜6である−(C=O)−(CH2)n−(C=O)−を表す
ことを特徴とする組成物。
からなる群から選択され、但し、R9、R10、R11、R12、およびR13は、すべて独立して、H、Br、Cl、I、F、CH3、またはOCH3を表し、*は顔料中のアゾ基に対する結合の点を示すことを特徴とする組成物。
Claims (1)
- ベンズイミダゾロン顔料と、
ベンズイミダゾロン顔料と非共有的に会合し、置換ピリジン誘導体を含む立体的に嵩高い安定剤化合物と、を含むナノスケール顔料粒子組成物であって、
会合した安定剤の存在が、粒子の成長および凝集の程度を制限して、ナノスケール顔料粒子をもたらすことを特徴とする組成物。
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US12/509,161 | 2009-07-24 | ||
US12/581,510 US8012254B2 (en) | 2008-03-07 | 2009-10-19 | Nanosized particles of benzimidazolone pigments |
US12/581,510 | 2009-10-19 |
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US20100104963A1 (en) | 2010-04-29 |
KR101659787B1 (ko) | 2016-09-26 |
US8455654B2 (en) | 2013-06-04 |
US20110271874A1 (en) | 2011-11-10 |
KR20110010582A (ko) | 2011-02-01 |
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