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71.发明授权Films for reproducing digitally stored medical diagnostic images and integrating non-image information 失效用于再现数字存储的医学诊断图像并集成非图像信息的影片
公开(公告)号：US5633126A
公开(公告)日：1997-05-27
申请号：US574509
申请日：1995-12-19
CPC分类号： G03C5/14 , G03C1/035 , G03C1/295 , G03C1/832 , G03C5/26 , Y10S430/145 , Y10S430/167
摘要： A radiation-sensitive silver halide film for reproducing digitally stored medical diagnostic images through a series of laterally offset exposures by a controlled radiation source followed by processing in 90 seconds or less, including development, fixing and drying. The film exhibits an average contrast in the range of from 1.5 to 2.0, measured over a density above fog of from 0.25 to 2.0. An emulsion layer is provided in which silver bromochloride grains (a) comprised of at least 10 mole percent bromide, based on silver, (b) having a mean equivalent circular diameter of less than 0.40 .mu.m, (c) exhibiting an average aspect ratio of less than 1.3, and (d) coated at a silver coverage of less than 40 mg/dm.sup.2. Adsorbed to the surfaces of the silver bromochloride grains at least one spectral sensitizing dye having an absorption half peak bandwidth in the spectral region of exposure by the controlled exposure source. The film contains an infrared opacifying dye that is capable of reducing specular transmission through the film before, during and after processing to less than 50 percent, measured at a wavelength within the spectral region of from 850 to 1100 nm. The film contains a magnetic recording layer which provides a positive b* value influence that is more than offset by the negative b* value influence of the silver bromochloride emulsion, allowing magnetic recording layer integration into the film while achieving favorable image tone and minimum density characteristics.
摘要翻译： 一种辐射敏感的卤化银膜，用于通过受控辐射源的一系列横向偏移曝光再现数字存储的医学诊断图像，随后在90秒或更短时间内进行处理，包括显影，定影和干燥。 该薄膜的平均对比度在1.5至2.0的范围内，在雾度以上的密度测量为0.25至2.0。 提供一种乳液层，其中由基于银的至少10摩尔％的溴化物组成的溴氯化物颗粒（a），（b）平均当量圆直径小于0.40微米，（c）具有平均纵横比 小于1.3，（d）以小于40mg / dm 2的银覆盖率涂覆。 吸附到溴化银银粒子表面上的至少一种光谱增感染料，其通过受控曝光源在曝光的光谱区域中具有吸收半峰值带宽。 该膜含有一种红外遮光染料，其能够在850至1100nm的光谱区域内的波长处测量，其在处理之前，期间和之后通过膜的镜面透射小于50％。 该膜含有磁记录层，该记录层提供正值b *值的影响，该影响被溴溴氯化银乳剂的负b *值的影响所抵消，从而允许磁记录层一体化到膜中同时获得良好的图像色调和最小密度特性 。
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公开(公告)号：US5468598A
公开(公告)日：1995-11-21
申请号：US228839
申请日：1994-04-18
申请人： David D. Miller , Mary C. Brick , Mridula Nair
发明人： David D. Miller , Mary C. Brick , Mridula Nair
CPC分类号： G03C7/3882 , C09B67/0085 , G03C1/005
摘要： A process for preparing a stable, solid particle dispersion of a substantially water-insoluble compound useful in imaging, comprises the steps of:(a) forming a coarse aqueous slurry of solid particles of said compound and a hydrophobic, water-soluble or water-dispersible polymer in an amount of 0.1 to 100% by weight based on the weight of said compound; and(b) milling said slurry for time sufficient to provide particles of the desired average particle size;wherein the polymer is an uncharged or weakly anionically charged water-soluble or water-dispersible homopolymer or copolymer in which at least 10 mole % of the repeat units contain an uncharged pendant group that terminates in (a) a CH.sub.3 unit, (b) a ring containing at least two contiguous CH.sub.2 units, or (c) an aromatic group.The resulting dispersion has dispersed solid particles of said compound having the desired small particle size and is stable toward particle agglomeration, particle growth and needle growth.
摘要翻译： 制备用于成像的基本上不溶于水的化合物的稳定的固体颗粒分散体的方法包括以下步骤：（a）形成所述化合物的固体颗粒和疏水性，水溶性或水溶性的粗浆状物， 相对于所述化合物的重量，可分散的聚合物的量为0.1〜100重量％ 和（b）将所述浆料研磨足够的时间以提供所需平均粒径的颗粒; 其中所述聚合物是不带电荷或弱阴离子电荷的水溶性或水分散性均聚物或共聚物，其中至少10摩尔％的重复单元含有终止于（a）CH3单元的不带电荷的侧基，（b） 环包含至少两个相邻的CH2单元，或（c）芳族基团。 所得到的分散体具有所需化合物的固体颗粒，其粒径小，对颗粒聚集，颗粒生长和针生长稳定。
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公开(公告)号：US4965131A
公开(公告)日：1990-10-23
申请号：US170519
申请日：1988-03-21
申请人： Mridula Nair , Zona R. Pierce , Donna A. DiPrima
发明人： Mridula Nair , Zona R. Pierce , Donna A. DiPrima
CPC分类号： G03G9/0825 , G03G9/08795 , Y10T428/2991
摘要： A method of preparing polymer particles having narrow size distribution in a suspension process employing a solid colloidal stabilizing agent. The solid colloidal stabilizer is a copolymer of about 25 to about 80% by weight, based on total monomer weight, of an additional polymerizable nonionic oleophilic monomer, about 5 to about 45%, by weight, of an addition polymerizable nonionic hydrophilic monomer, about 1 to about 50% of an addition polymerizable ionic monomer, and 0 to about 20 percent, by weight, of a crosslinking monomer having at least two addition polymerizable groups. Also disclosed are polymeric particles comprising a core polymer covered by a layer of the smaller copolymer stabilizer particles and electrostatographic toners comprising such polymeric particles.
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公开(公告)号：US4835084A
公开(公告)日：1989-05-30
申请号：US171066
申请日：1988-03-21
申请人： Mridula Nair , Zona R. Pierce
发明人： Mridula Nair , Zona R. Pierce
CPC分类号： G03G9/0804 , G03G9/09766 , Y10S528/934
摘要： Suspension stabilizer particles are removed from the surface of polymer particles formed in a limiting coalescence formation technique by dissolving in a solution containing a fluoralkyl polyether surface active agent.
摘要翻译： 通过溶解在含有氟烷基聚醚表面活性剂的溶液中，从限制聚结形成技术中形成的聚合物颗粒的表面除去悬浮稳定剂颗粒。
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公开(公告)号：US4334048A
公开(公告)日：1982-06-08
申请号：US267111
申请日：1981-05-26
申请人： Thomas J. Katz , Mridula Nair , Steven J. Lee
发明人： Thomas J. Katz , Mridula Nair , Steven J. Lee
CPC分类号： C08G61/08
摘要： A process is described for the polymerization of cyclic olefins by ring-opening employing a coinitiator such as acetylene or substituted acetylenes. The polymers obtained by this method are highly stereoselective.
摘要翻译： 描述了通过使用共引发剂如乙炔或取代的乙炔通过开环聚合环烯烃的方法。 通过该方法获得的聚合物是高立体选择性的。
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公开(公告)号：US09815958B2
公开(公告)日：2017-11-14
申请号：US15133267
申请日：2016-04-20
CPC分类号： C08J9/283 , C08J9/0061 , C08J2201/0502 , C08J2205/048 , C08J2367/00 , C08J2401/02 , C08J2401/28
摘要： Polymeric porous particles have a continuous organic solid phase and at least two sets of discrete pores that are isolated from each other within the continuous phase and that have different average sizes. One set of discrete pores has a larger average size than another set of discrete pores by at least 50%. At least one set of discrete pores is free of detectably different marker materials. There porous particles can be prepared using evaporative limited coalescence techniques with especially chosen discrete pore stabilizing hydrocolloids to protect the pores during formation and to provide the different average sizes. The resulting porous particles can be incorporated into articles of various types and having various shapes.
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公开(公告)号：US20160229977A1
公开(公告)日：2016-08-11
申请号：US15133267
申请日：2016-04-20
CPC分类号： C08J9/283 , C08J9/0061 , C08J2201/0502 , C08J2205/048 , C08J2367/00 , C08J2401/02 , C08J2401/28
摘要： Polymeric porous particles have a continuous organic solid phase and at least two sets of discrete pores that are isolated from each other within the continuous phase and that have different average sizes. One set of discrete pores has a larger average size than another set of discrete pores by at least 50%. At least one set of discrete pores is free of detectably different marker materials. There porous particles can be prepared using evaporative limited coalescence techniques with especially chosen discrete pore stabilizing hydrocolloids to protect the pores during formation and to provide the different average sizes. The resulting porous particles can be incorporated into articles of various types and having various shapes.
摘要翻译： 聚合多孔颗粒具有连续的有机固相和至少两组在连续相内彼此分离并且具有不同平均尺寸的离散孔。 一组离散的孔具有比另一组离散孔更大的平均尺寸至少50％。 至少一组离散的孔没有可检测的不同的标记材料。 可以使用具有特别选择的离散孔稳定水胶体的蒸发有限聚结技术来制备多孔颗粒，以在形成期间保护孔隙并提供不同的平均尺寸。 所得多孔颗粒可以并入各种类型的制品中并具有各种形状。
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公开(公告)号：US09376540B2
公开(公告)日：2016-06-28
申请号：US13749748
申请日：2013-01-25
CPC分类号： C08J9/283 , C08J9/0061 , C08J2201/0502 , C08J2205/048 , C08J2367/00 , C08J2401/02 , C08J2401/28
摘要： Polymeric porous particles have a continuous solid phase and at least two sets of discrete pores that are isolated from each other within the continuous phase and that have different average sizes. One set of discrete pores has a larger average size than another set of discrete pores by at least 50%. At least one set of discrete pores is free of detectably different marker materials. There porous particles can be prepared using evaporative limited coalescence techniques with especially chosen discrete pore stabilizing hydrocolloids to protect the pores during formation and to provide the different average sizes.
摘要翻译： 聚合多孔颗粒具有连续的固相和至少两组在连续相中彼此分离并且具有不同平均尺寸的离散孔。 一组离散的孔具有比另一组离散孔更大的平均尺寸至少50％。 至少一组离散的孔没有可检测的不同的标记材料。 可以使用具有特别选择的离散孔稳定水胶体的蒸发有限聚结技术来制备多孔颗粒，以在形成期间保护孔隙并提供不同的平均尺寸。
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公开(公告)号：US20150234098A1
公开(公告)日：2015-08-20
申请号：US14181766
申请日：2014-02-17
CPC分类号： G02B5/003 , C08J9/0004 , C08J9/236 , C08J2301/10 , C08K3/013 , C09D5/32 , C09D7/69 , D06N3/0043 , D06N3/0063 , D06N3/0065 , D06N2205/10 , D06N2209/0823 , D06N2209/0853 , Y10T428/249972
摘要： A light-blocking article is designed to be lightweight but effective to block most incident actinic radiation and can be designed into fabrics, curtains, and other materials. Such an article has an opacifying layer that is capable of blocking predetermined electromagnetic radiation. The article contains (a) porous particles comprising a continuous polymeric binder and pores within the continuous polymeric binder, the porous particles having a glass transition temperature of at least 25° C. and a mode particle size of at least 2 μm and up to and including 50 μm. The article also contains an opacifying colorant that absorbs the predetermined electromagnetic radiation (such as within 400 nm to 700 nm), in an amount of at least 0.001 weight % based on the total dry weight of the opacifying layer, and a matrix polymer in which the porous particles and opacifying colorant are dispersed.
摘要翻译： 遮光制品被设计为轻便但有效地阻挡大多数入射的光化辐射，并且可以被设计成织物，窗帘和其他材料。 这样的制品具有能够阻挡预定的电磁辐射的遮光层。 该制品包含（a）包含连续聚合物粘合剂和连续聚合物粘合剂内的孔的多孔颗粒，多孔颗粒的玻璃化转变温度至少为25℃，模式粒度为至少2μm， 包括50μm。 该物品还包含以基于不透明层的总干重至少0.001重量％的量吸收预定电磁辐射（例如在400nm至700nm内）的不透明着色剂，以及基质聚合物，其中 分散多孔颗粒和遮光着色剂。
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公开(公告)号：US08728692B2
公开(公告)日：2014-05-20
申请号：US12847196
申请日：2010-07-30
申请人： Mridula Nair , David D. Putnam , Shari L. Eiff , Cumar Sreekumar
发明人： Mridula Nair , David D. Putnam , Shari L. Eiff , Cumar Sreekumar
IPC分类号： G03G9/00
CPC分类号： G03G9/0804 , G03G9/0819 , G03G9/0825 , G03G9/09392 , G03G9/09725
摘要： A surface decorated particle including a core particle phase having an outer surface; and fine inorganic particles on the outer surface of the core particle phase; wherein the fine inorganic particles have hydrophobic groups covalently bonded primarily on portions of surfaces of the fine inorganic particles positioned away from the core particle phase. Such surface decorated particles are obtainable by a method including stabilizing dispersed hydrophobic phase particles in an aqueous phase with fine inorganic particles having a relatively hydrophilic surface; and treating the stabilized dispersed hydrophobic phase particles with a hydrophobic group containing reactant to form hydrophobic groups covalently bonded to surfaces of the fine inorganic particles. In a particular embodiment, such surface decorated particles are obtainable by a limited coalescence process for preparing binder polymer particles using inorganic stabilizer particles that provide a plurality of surface bonding sites and reacting such sites with a plurality of alkoxy silane moieties that contains pendant hydrophobic groups.
摘要翻译： 包括具有外表面的核心颗粒相的表面装饰颗粒; 和核心颗粒相外表面上的无机细颗粒; 其中，所述无机微粒具有疏水性基团，所述疏水性基团主要共价键合在位于远离所述核心粒子相的所述无机微粒表面的部分。 这种表面装饰颗粒可以通过包括用具有相对亲水表面的细无机颗粒在水相中稳定分散的疏水相颗粒的方法获得; 并用含疏水基团的反应物处理稳定的分散的疏水相颗粒以形成共价键合到无机微粒表面的疏水基团。 在一个具体实施方案中，这种表面装饰颗粒可以通过有限的聚结方法获得，所述聚结方法使用提供多个表面结合位点的无机稳定剂颗粒来制备粘合剂聚合物颗粒，并使该位点与包含侧链疏水基团的多个烷氧基硅烷部分反应。
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