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公开(公告)号：US5471287A
公开(公告)日：1995-11-28
申请号：US237804
申请日：1994-05-04
CPC分类号： G03G15/104
摘要： System for replenishing liquid developer in equipment, such as a printer, whereby the percent of toner solids is maintained at about 0.5 to 4% by weight based on the total weight of liquid developer, the system comprising at least one liquid toner concentrate vessel containing aggregates of thermoplastic resin particles, median particle size (volume weighted) greater than 15 .mu.m, and with 90% of the particles (volume weighted) not less than 30 .mu.m, composed of 50 to 100% by weight of particles and 0 to 50% by weight carrier liquid; a liquid vessel containing carrier liquid, means communicating each of said vessels with a dispersing vessel containing high shearing or high impact means wherein contents of the liquid toner concentrate vessel and the liquid vessel are supplied thereto and the resin particles are dispersed in the carrier liquid to form particles having a median particle size (volume weighted) of less than 15 .mu.m, and with 90% of the particles (volume weighted) less than 30 .mu.m in an amount of about 0.5 to 20% by weight of resin particles and about 99.5 to 80% by weight carrier liquid said dispersion being supplied and metered into the supply vessel containing original liquid developer to maintain the desired weight of solids. The system is useful in copying, proofing, etc., equipment, and the liquid developer is useful for making copies, proofs, lithographic printing plates and resists.
摘要翻译： 用于补充诸如打印机的设备中的液体显影剂的系统，其中调色剂固体的百分比基于液体显影剂的总重量保持在约0.5至4重量％，该系统包含至少一个含有聚集体的液体调色剂浓缩容器 的热塑性树脂颗粒，中值粒径（体积加权）大于15μm，和90％的颗粒（体积加权）不小于30μm，由50至100重量％的颗粒和0至50 载体液体重量％ 含有载体液体的液体容器，使每个所述容器与包含高剪切或高冲击力的分散容器连通，其中液体调色剂浓缩容器和液体容器的内容物被供应到树脂颗粒中，并将树脂颗粒分散在载体液体中 具有小于15μm的中值粒径（体积加权）和90％（小于30μm）的颗粒（体积加权）的颗粒的量为约0.5至20重量％的树脂颗粒和约 99.5至80重量％的载体液体，所述分散体被供应并计量到含有原始液体显影剂的供应容器中以保持所需重量的固体。 该系统可用于复印，打样等设备，液体显影剂可用于制作复印件，样张，平版印刷版和抗蚀剂。
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2.发明授权Mineral acids as charge adjuvants for positive liquid electrostatic developers 失效矿物酸作为阳性液体静电显影剂的电荷佐剂
公开(公告)号：US5034299A
公开(公告)日：1991-07-23
申请号：US522277
申请日：1990-05-11
CPC分类号： G03G9/135
摘要： A positive charged electrostatic liquid developer consisting essentially of(A) a non-polar liquid having a Kauri-butanol value of less than 30,(B) thermoplastic resin particles, average by area particle size of less than 10 .mu.m,(C) a charge director compound, and(D) at least one inorganic acid having a solubility of at least 0.5% based on the weight of charge director compound in a mixture of (A) and (C) and represented by the formula:H.sub.x Y wherein x is an integer from 1-4 and is equal to the negative charge on the anion,Y is a moiety selected from the group consisting of Cl.sup.-, F.sup.-, NO.sub.3.sup.-, NO.sub.2.sup.-, PO.sub.4.sup.-3, SO.sub.4.sup.-2, SO.sub.3.sup.-2, ClO.sub.4.sup.-, and IO.sub.4.sup.-.The liquid developer is useful in copying, color proofing, digital color proofing, making lithographic printing plates, and resists.
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3.发明授权Process for preparing positive electrostatic liquid developers with acidified charge directors 失效用酸化电荷导向剂制备正极静电液体开发者的方法
公开(公告)号：US5066821A
公开(公告)日：1991-11-19
申请号：US522283
申请日：1990-05-11
CPC分类号： G03G9/12 , G03G9/1355
摘要： A process for preparing an improved positive-working electrostatic liquid developer comprising(A) dispersing at an elevated temperature in a vessel a thermoplastic resin and a nonpolar liquid having a Kauri-butanol value of less than 30, while maintaining the temperature in the vessel at a temperature sufficient to plasticize and liquify the resin and below that at which the nonpolar liquid degrades and the resin decomposes,(B) cooling the dispersion, either(1) without stirring to form a gel or solid mass, followed by shredding the gel or solid mass and grinding by means of particulate media;(2) with stirring to form a viscous mixture and grinding by means of particulate media; or(3) while grinding by means of particulate media to prevent the formation of a gel or solid mass;(C) separating the dispersion of toner particles having an average particle size of less than 30 .mu.m from the particulate media, and(D) adding to the dispersion subsequent to Step (A) a nonpolar liquid soluble ionic or zwitterionic charge director compound mixed with an acid having a pKa of
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公开(公告)号：US5254427A
公开(公告)日：1993-10-19
申请号：US814549
申请日：1991-12-30
摘要： A liquid developer is prepared from a liquid electrostatic developer concentrate comprising up to 80% toner solids and a surfactant. The liquid electrostatic developer concentrate may be prepared by preparing a liquid electrostatic developer containing up to 20% toner solids; subsequently adding a surfactant to the liquid electrostatic developer; and concentrating the liquid electrostatic developer. The surfactant permits the easy redispersion of the toner solids at the time of use.
摘要翻译： 液体显影剂由包含高达80％调色剂固体和表面活性剂的液体静电显影剂浓缩物制备。 液体静电显影剂浓缩物可以通过制备含有高达20％调色剂固体的液体静电显影剂来制备; 随后向液体静电显影剂中加入表面活性剂; 并浓缩液体静电显影剂。 表面活性剂允许调色剂固体在使用时容易再分散。
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公开(公告)号：US5053307A
公开(公告)日：1991-10-01
申请号：US516005
申请日：1990-04-26
CPC分类号： G03G9/12 , Y10S524/901 , Y10S525/93
摘要： Process for the preparation of toner particles for electrostatic liquid developers, which upon fusing to paper have a gloss .gtoreq.10 units over the paper gloss comprising:(A) dispersing at least one thermoplastic resin, at least one pigment, and a hydrocarbon liquid having a Kauri-butanol value of greater than 120 such that the dispersion contains 10% or more by weight solids by means of particulate media whereby the moving particulate media creates shear and/or impact while maintaining the temperature for 5 to 180 minutes in the vessel at a temperature of at least 15.degree. C. above the point at which the resin is plasticized or liquified by the hydrocarbon liquid and below that at which the hydrocarbon liquid boils and the resin and/or pigment decomposes,(B) continuing dispersion of the resin, pigment and hydrocarbon liquid as in Step (A) while maintaining the temperature for 5 to 180 minutes in the vessel at least 5.degree. C. below the point to at least 10.degree. C. above the point at which the resin is no longer plasticized or liquified by the hydrocarbon liquid,(C) cooling the dispersion containing 10% or more by weight solids in said vessel to permit precipitation of the resin out of the dispersant, the particulate media being maintained in continuous movement during and subsequent to cooling whereby toner particles having an average particle size of 10 .mu.m or less are formed, and(D) separating the dispersion of toner particles from the particulate media.Electrostatic developers are prepared by the addition of a charge director compound. The liquid developers are useful for preparation of copies and proofs of various colors and result in images having a higher gloss.
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公开(公告)号：US5262266A
公开(公告)日：1993-11-16
申请号：US807921
申请日：1991-12-16
申请人： William A. Houle , Daniel McClain
发明人： William A. Houle , Daniel McClain
IPC分类号： G03G9/135
CPC分类号： G03G9/1355 , G03G9/135
摘要： A liquid developer contains a liquid carrier, a halogenated charge director and toner particles. Preferably, the charge director contains a fluorinated portion and a hydrocarbon portion. The charge director provides a developer which is fully charged but has a very small residual conductivity, thus providing a high quality image.
摘要翻译： 液体显影剂含有液体载体，卤化电荷导向剂和调色剂颗粒。 优选地，电荷导向剂含有氟化部分和烃部分。 电荷导向器提供充满电但具有非常小的残余电导率的显影剂，从而提供高质量的图像。
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公开(公告)号：US20080290320A1
公开(公告)日：2008-11-27
申请号：US12186079
申请日：2008-08-05
申请人： Kai Kong Iu , Gary Larson , Hai Q. Tran , William A. Houle
发明人： Kai Kong Iu , Gary Larson , Hai Q. Tran , William A. Houle
CPC分类号： D21H21/30 , D06L4/614 , D21H17/09 , Y10S8/919 , Y10T428/24802 , Y10T428/24934
摘要： A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4′-diamino-2,2′-stilbene disulfonic acid, biarylsulfonate-4,4′-diamino-2,2′-stilbene disulfonic acid, biaryldisulfonate-4,4′-diamino-2,2′-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.
摘要翻译： 增亮系统包括在基材上建立的底物和两性二苯乙烯组合物。 两性二苯乙烯组合物包含预定量的4,4'-二氨基-2,2'-二苯乙烯二磺酸，联芳基磺酸盐-4,4'-二氨基-2,2'-二苯乙烯二磺酸，联芳二磺酸-4 ，4'-二氨基-2,2'-二苯乙烯二磺酸，其衍生物，其盐及其混合物; 和固定剂。
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公开(公告)号：US06102998A
公开(公告)日：2000-08-15
申请号：US52044
申请日：1998-03-30
申请人： Kai-Kong Iu , Leonard Slevin , William A. Houle
发明人： Kai-Kong Iu , Leonard Slevin , William A. Houle
CPC分类号： C09D11/30
摘要： Ink-jet inks and method of printing using the same are provided, the inks comprising at least one colorant and an aqueous vehicle, the vehicle comprising at least one anionic or nonionic surfactant, at least one alkoxylated polyhydroxy organic solvent, at least one water-miscible organic solvent; and optionally, at least one hydantoin compound, and optionally, at least one branched C.sub.2 -C.sub.7 alcohol. The inks enable production of near photographic images having little or no coalescence, excellent waterfastness, and reduced dry time, on a range of print media, in particular, photobase glossy paper.
摘要翻译： 提供喷墨油墨和使用其的印刷方法，所述油墨包含至少一种着色剂和水性载体，所述载体包含至少一种阴离子或非离子表面活性剂，至少一种烷氧基化多羟基有机溶剂，至少一种水溶性表面活性剂， 可混溶有机溶剂; 和任选的至少一种乙内酰脲化合物和任选的至少一种支链C 2 -C 7醇。 这些油墨能够在一系列的印刷介质，特别是光面光面纸上生产具有很少或没有聚结，优异的耐水性和减少的干燥时间的近摄影图像。
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9.发明授权AB diblock copolymers as toner particle dispersants for electrostatic liquid developers 失效AB二嵌段共聚物作为静电液体发泡剂的调色剂分散剂
公开(公告)号：US5106717A
公开(公告)日：1992-04-21
申请号：US518034
申请日：1990-05-02
摘要： Electrostatic liquid developer consisting essentially of(A) a nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount,(B) thermoplastic resin particles having an average by area particle size of less than 10 .mu.m, and coated with (C),(C) an AB diblock copolymer toner particle dispersant as defined, and(D) a nonpolar liquid soluble ionic or zwitterionic compound. Optionally a colorant and charge adjuvant are present. The process of making the electrostatic liquid developer is described. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
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10.发明授权Process for the stabilization of high-chloride crystals with modified crystal habit using bromide shells 失效使用溴化物壳稳定具有改性晶体习惯的高氯化物晶体的方法
公开(公告)号：US5035992A
公开(公告)日：1991-07-30
申请号：US443547
申请日：1989-11-30
申请人： William A. Houle , Thomas P. Tufano
发明人： William A. Houle , Thomas P. Tufano
CPC分类号： G03C1/0053 , G03C1/015 , G03C1/07 , G03C2001/0156 , G03C2001/03511 , G03C2001/03535 , G03C2001/091 , G03C2001/095 , G03C2200/03 , G03C2200/43 , G03C2200/44
摘要： Process for stabilizing the crystalline grain morphology of silver halide grain cores prepared in the presence of a dispersing medium and an aminoazapyridine compound at a pH of 2.5 to 9 and pCl of 0 to 3, at least 50% of the total projected area of the total grain population being noncubic silver halide grain cores and the halide content being at least 50 mole percent chloride, based on total moles of silver precipitated, the improvement wherein after 60% of aqueous silver salt solution based on the total moles of silver precipitated is introduced a second halide salt, e.g., bromide, is added thereby forming on the grain cores a shell of 0.5 to 20 mole % based on the total moles of silver precipitated. The emulsions are useful in X-ray, color separation, inverse transfer films, and "dry-silver" applications, etc.
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