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1.发明申请公开(公告)号：US20120124899A1
公开(公告)日：2012-05-24
申请号：US13140648
申请日：2008-12-17
申请人： Albert Gary Difrancesco , Thomas D. Allston , Richard K. Hailstone , Andreas Langner , Linda Langner , Kenneth J. Reed
发明人： Albert Gary Difrancesco , Thomas D. Allston , Richard K. Hailstone , Andreas Langner , Linda Langner , Kenneth J. Reed
摘要： A process for making cerium dioxide nanoparticles containing at least one transition metal (M) utilizes a suspension of cerium hydroxide nanoparticles prepared by mechanical shearing of an aqueous mixture containing an oxidant in an amount effective to enable oxidation of cerous ion to ceric ion, thereby forming a product stream that contains transition metal-containing cerium dioxide nanoparticles, Ce1-xMxO2, wherein “x” has a value from about 0.3 to about 0.8. The nanoparticles thus obtained have a cubic fluorite structure, a mean hydrodynamic diameter in the range of about 1 nm to about 10 nm, and a geometric diameter of less than about 4 nm. The transition metal-containing crystalline cerium dioxide nanoparticles can be used to prepare a dispersion of the particles in a nonpolar medium.
摘要翻译： 用于制备含有至少一种过渡金属（M）的二氧化铈纳米颗粒的方法利用通过机械剪切含有氧化剂的含水混合物制备的氢氧化铈纳米颗粒的悬浮液，所述含水混合物的量有效使铈离子氧化成铈离子，从而形成 含有过渡金属的二氧化铈纳米颗粒Ce1-xMxO2的产物流，其中“x”具有约0.3至约0.8的值。 由此获得的纳米颗粒具有立方萤石结构，在约1nm至约10nm的范围内的平均流体动力学直径和小于约4nm的几何直径。 可以使用含过渡金属的结晶二氧化铈纳米颗粒来制备颗粒在非极性介质中的分散体。
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公开(公告)号：US10435639B2
公开(公告)日：2019-10-08
申请号：US13140648
申请日：2008-12-17
申请人： Albert Gary Difrancesco , Thomas D. Allston , Richard K. Hailstone , Andreas Langner , Kenneth J. Reed
发明人： Albert Gary Difrancesco , Thomas D. Allston , Richard K. Hailstone , Andreas Langner , Kenneth J. Reed
IPC分类号： C10L1/12 , B01J23/00 , C10M103/06 , C10M177/00 , B01J37/03 , B01J23/10 , B01J23/83 , B01J35/00 , B82Y30/00
摘要： A process for making cerium dioxide nanoparticles containing at least one transition metal (M) utilizes a suspension of cerium hydroxide nanoparticles prepared by mechanical shearing of an aqueous mixture containing an oxidant in an amount effective to enable oxidation of cerous ion to ceric ion, thereby forming a product stream that contains transition metal-containing cerium dioxide nanoparticles, Ce1-xMxO2, wherein “x” has a value from about 0.3 to about 0.8. The nanoparticles thus obtained have a cubic fluorite structure, a mean hydrodynamic diameter in the range of about 1 nm to about 10 nm, and a geometric diameter of less than about 4 nm. The transition metal-containing crystalline cerium dioxide nanoparticles can be used to prepare a dispersion of the particles in a nonpolar medium.
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公开(公告)号：US09993803B2
公开(公告)日：2018-06-12
申请号：US12440165
申请日：2007-09-04
IPC分类号： B01J23/10 , B01F3/08 , B01F7/16 , B01J13/00 , C10L1/10 , C10L10/02 , C10L10/08 , C10L10/12 , B82Y30/00 , C10L1/12 , C10L1/16 , C10L1/18 , C10L1/182 , C10L1/188 , C10L1/19 , C10L1/198 , C10L1/222 , C10L1/24
CPC分类号： B01J23/10 , B01F3/0807 , B01F7/164 , B01J13/0047 , B01J13/0086 , B82Y30/00 , C01F17/0043 , C01P2002/72 , C01P2004/04 , C01P2004/52 , C01P2004/64 , C10L1/10 , C10L1/103 , C10L1/1233 , C10L1/125 , C10L1/1258 , C10L1/1608 , C10L1/1616 , C10L1/1811 , C10L1/1824 , C10L1/1881 , C10L1/1883 , C10L1/19 , C10L1/1985 , C10L1/2222 , C10L1/2437 , C10L10/02 , C10L10/08 , C10L10/12 , C10M2201/062 , C10N2230/06 , C10N2240/10 , Y02T50/678 , C10N2210/03 , C10N2220/082
摘要： A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.
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公开(公告)号：US20110056123A1
公开(公告)日：2011-03-10
申请号：US12440165
申请日：2007-09-04
CPC分类号： B01J23/10 , B01F3/0807 , B01F7/164 , B01J13/0047 , B01J13/0086 , B82Y30/00 , C01F17/0043 , C01P2002/72 , C01P2004/04 , C01P2004/52 , C01P2004/64 , C10L1/10 , C10L1/103 , C10L1/1233 , C10L1/125 , C10L1/1258 , C10L1/1608 , C10L1/1616 , C10L1/1811 , C10L1/1824 , C10L1/1881 , C10L1/1883 , C10L1/19 , C10L1/1985 , C10L1/2222 , C10L1/2437 , C10L10/02 , C10L10/08 , C10L10/12 , C10M2201/062 , C10N2230/06 , C10N2240/10 , Y02T50/678 , C10N2210/03 , C10N2220/082
摘要： A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.
摘要翻译： 制备二氧化铈纳米颗粒的方法包括：a）在初始温度不高于约20℃下提供具有铈离子源，氢氧根离子源，纳米颗粒稳定剂和氧化剂的水性反应混合物; b）机械剪切混合物并使其通过穿孔筛网，从而形成氢氧化铈纳米颗粒的悬浮液; 和c）提高初始温度以实现铈离子氧化为奇异离子，从而形成平均直径在约1nm至约15nm范围内的二氧化铈纳米颗粒。 二氧化铈纳米颗粒可以以连续的方法形成。
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公开(公告)号：US08883865B2
公开(公告)日：2014-11-11
申请号：US12779602
申请日：2010-05-13
IPC分类号： C01F17/00 , C01G25/00 , B01J13/00 , C01G55/00 , C10L1/10 , C01G49/00 , C01G25/02 , C10L10/02 , B82Y30/00 , C01G49/02 , C10L1/188 , C10L1/12
CPC分类号： C10L1/1233 , B01J13/0034 , B01J13/0047 , B82Y30/00 , C01F17/00 , C01F17/0043 , C01G25/00 , C01G25/02 , C01G49/0054 , C01G49/009 , C01G49/02 , C01G55/00 , C01P2002/30 , C01P2002/52 , C01P2002/72 , C01P2004/04 , C01P2004/51 , C01P2004/52 , C01P2004/64 , C01P2006/90 , C10G25/02 , C10L1/10 , C10L1/1881 , C10L10/02 , C10L10/06 , C10L2200/0222 , C10L2200/024 , C10L2200/0245 , C10L2200/0254 , C10L2230/22 , C10L2250/06 , C10L2270/026 , Y10T428/2982
摘要： A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to total metal ions is greater than 0.2, and an oxidant at an initial temperature in the range of about 20° C. to about 95° C. Temperature conditions are provided effective to enable oxidation of cerous ion to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles, optionally containing one or more metal ions (M), Ce1-xMxO2-δ, wherein “x” has a value from about 0.0 to about 0.95. The nanoparticles may have a mean hydrodynamic diameter from about 1 nm to about 50 nm, and a geometric diameter of less than about 45 nm.
摘要翻译： 制备含铈氧化物纳米颗粒的方法包括提供含有铈离子源的水性反应混合物，任选地除了铈以外的一种或多种金属离子（M）的源，氢氧根离子源，至少一种单醚羧酸 纳米颗粒稳定剂，其中所述单醚羧酸纳米颗粒稳定剂与总金属离子的摩尔比大于0.2，氧化剂的初始温度在约20℃至约95℃的范围内。温度条件有效地 能够将铈离子氧化成铈离子，从而形成含铈氧化物纳米颗粒的产品分散体，任选地含有一种或多种金属离子（M），Ce1-xMxO2-δ，其中“x”具有约0.0至约 0.95。 纳米颗粒可以具有约1nm至约50nm的平均流体动力学直径和小于约45nm的几何直径。
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公开(公告)号：US09415373B2
公开(公告)日：2016-08-16
申请号：US13583809
申请日：2011-03-08
申请人： Kenneth J. Reed , Albert Gary DiFrancisco , Richard K. Hailstone , Gary R. Prok , Thomas D. Allston
发明人： Kenneth J. Reed , Albert Gary DiFrancisco , Richard K. Hailstone , Gary R. Prok , Thomas D. Allston
IPC分类号： B01J23/10 , B01J23/00 , B01J23/83 , B01J37/02 , B01J37/03 , B82Y30/00 , C01G49/00 , C10L1/12 , C10L10/02 , C10M125/10 , C01F17/00 , B82Y40/00
CPC分类号： B01J23/10 , B01J23/002 , B01J23/83 , B01J37/0221 , B01J37/031 , B01J37/035 , B82Y30/00 , B82Y40/00 , C01F17/0018 , C01F17/0043 , C01G49/00 , C01G49/009 , C01P2002/52 , C01P2004/03 , C01P2004/04 , C01P2004/45 , C01P2004/64 , C01P2004/84 , C10L1/1233 , C10L10/02 , C10M125/10 , C10M2201/062 , C10N2220/082 , C10N2250/12 , Y10S977/775 , Y10S977/811 , Y10S977/89 , Y10S977/902
摘要： A method of making a structured, doped, cerium oxide nanoparticle includes (a) forming a first reaction mixture including cerium(III), an optional metal ion other than cerium, a base, a stabilizer, and a solvent, (b) contacting the first reaction mixture with an oxidant, (c) forming a cerium oxide nanoparticle core by heating the product of step (b), (d) forming a second reaction mixture by combining with the first reaction mixture one or more metal ions other than cerium, and an optional additional quantity of cerium(III), and (e) forming a shell surrounding the core of cerium oxide by heating the second reaction mixture to produce a product dispersion of structured cerium oxide nanoparticles.
摘要翻译： 制造结构化掺杂的氧化铈纳米颗粒的方法包括（a）形成第一反应混合物，其包括铈（III），除铈以外的任选的金属离子，碱，稳定剂和溶剂，（b）使 第一反应混合物与氧化剂反应，（c）通过加热步骤（b）的产物，（d）通过与第一反应混合物形成第二反应混合物形成一种或多种除铈以外的金属离子形成氧化铈纳米颗粒核， 和任选的附加量的铈（III），和（e）通过加热第二反应混合物形成围绕氧化铈芯的壳，以产生结构化的氧化铈纳米颗粒的产物分散体。
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公开(公告)号：US20130109600A1
公开(公告)日：2013-05-02
申请号：US13583809
申请日：2011-03-08
申请人： Kenneth J. Reed , Albert Gary Difrancisco , Richard K. Hailstone , Gary R. Prok , Thomas D. Allston
发明人： Kenneth J. Reed , Albert Gary Difrancisco , Richard K. Hailstone , Gary R. Prok , Thomas D. Allston
IPC分类号： B01J23/10
CPC分类号： B01J23/10 , B01J23/002 , B01J23/83 , B01J37/0221 , B01J37/031 , B01J37/035 , B82Y30/00 , B82Y40/00 , C01F17/0018 , C01F17/0043 , C01G49/00 , C01G49/009 , C01P2002/52 , C01P2004/03 , C01P2004/04 , C01P2004/45 , C01P2004/64 , C01P2004/84 , C10L1/1233 , C10L10/02 , C10M125/10 , C10M2201/062 , C10N2220/082 , C10N2250/12 , Y10S977/775 , Y10S977/811 , Y10S977/89 , Y10S977/902
摘要： A method of making a structured, doped, cerium oxide nanoparticle includes (a) forming a first reaction mixture including cerium(III), an optional metal ion other than cerium, a base, a stabilizer, and a solvent, (b) contacting the first reaction mixture with an oxidant, (c) forming a cerium oxide nanoparticle core by heating the product of step (b), (d) forming a second reaction mixture by combining with the first reaction mixture one or more metal ions other than cerium, and an optional additional quantity of cerium(III), and (e) forming a shell surrounding the core of cerium oxide by heating the second reaction mixture to produce a product dispersion of structured cerium oxide nanoparticles.
摘要翻译： 制造结构化掺杂的氧化铈纳米颗粒的方法包括（a）形成第一反应混合物，其包括铈（III），除铈以外的任选的金属离子，碱，稳定剂和溶剂，（b）使 第一反应混合物与氧化剂反应，（c）通过加热步骤（b）的产物，（d）通过与第一反应混合物形成第二反应混合物形成一种或多种除铈以外的金属离子形成氧化铈纳米颗粒核， 和任选的附加量的铈（III），和（e）通过加热第二反应混合物形成围绕氧化铈芯的壳，以产生结构化的氧化铈纳米颗粒的产物分散体。
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公开(公告)号：US08679344B2
公开(公告)日：2014-03-25
申请号：US12549776
申请日：2009-08-28
CPC分类号： B01J23/10 , B01D61/243 , B01D61/425 , B01D2315/16 , B01J13/003 , B01J13/0034 , B01J13/0047 , B01J35/0013 , C08K3/22 , C09D1/00 , C09D7/61 , C09D7/67 , C09K3/1463 , C10L1/10 , C10L1/1233 , C10L1/125 , C10L1/1608 , C10L1/1616 , C10L1/1824 , C10L1/1852 , C10L1/1881 , C10L1/19
摘要： A process for replacing the continuous phase of a nanoparticle dispersion with a less polar phase, includes filtering the dispersion through a semi-permeable membrane filter to remove the continuous phase, and introducing a less polar phase.
摘要翻译： 用极性较小的相代替纳米颗粒分散体的连续相的方法包括通过半透膜过滤器过滤分散体以除去连续相，并引入极性较小的相。
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公开(公告)号：US20100152077A1
公开(公告)日：2010-06-17
申请号：US12549776
申请日：2009-08-28
CPC分类号： B01J23/10 , B01D61/243 , B01D61/425 , B01D2315/16 , B01J13/003 , B01J13/0034 , B01J13/0047 , B01J35/0013 , C08K3/22 , C09D1/00 , C09D7/61 , C09D7/67 , C09K3/1463 , C10L1/10 , C10L1/1233 , C10L1/125 , C10L1/1608 , C10L1/1616 , C10L1/1824 , C10L1/1852 , C10L1/1881 , C10L1/19
摘要： A process for replacing the continuous phase of a nanoparticle dispersion with a less polar phase, includes filtering the dispersion through a semi-permeable membrane filter to remove the continuous phase, and introducing a less polar phase.
摘要翻译： 用极性较小的相代替纳米颗粒分散体的连续相的方法包括通过半透膜过滤器过滤分散体以除去连续相，并引入极性较小的相。
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10.发明授权公开(公告)号：US06893809B2
公开(公告)日：2005-05-17
申请号：US10244569
申请日：2002-09-16
CPC分类号： G03C7/30541 , G03C1/0051 , G03C1/04 , G03C7/3022 , G03C7/3029 , G03C7/3041 , G03C7/30594 , G03C7/333 , G03C2007/3032 , G03C2007/3034 , G03C2200/38 , G03C2200/53 , Y10S430/156
摘要： This invention relates to a negative silver halide photographic element comprising a support and a silver halide imaging layer containing a light sensitive silver halide imaging emulsion, said silver halide imaging layer further comprising a separately precipitated non-imaging intentionally fogged fine grain emulsion and an electron transfer agent releasing compound represented by formula (I): CAR1-(L)n-ETA (I) wherein: CAR1 is a carrier moiety which is capable of releasing -(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable electron transfer agent, and (optionally) a development accelerator releasing compound represented by the formula (II): CAR2—(SAM)-NX1—NX2X3 (II) wherein: CAR2 is a carrier moiety which is capable of releasing —(SAM)-NX1—NX2X3 on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is released on reaction with oxidized development agent; and —NX1—NX2X3 is a hydrazine group wherein X1, X2 and X3 are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl, or sulfonyl groups with the proviso that at least one of X1, X2 and X3 is hydrogen.
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