-
公开(公告)号：US20220090993A1
公开(公告)日：2022-03-24
申请号：US17540450
申请日：2021-12-02
摘要： The present disclosure provides stabilized hematoxylin formulations having a pH of less than 2.4. The present disclosure also provides methods of using such stabilized hematoxylin formulations to stain biological samples.
-
公开(公告)号：US20190177548A1
公开(公告)日：2019-06-13
申请号：US16320343
申请日：2017-07-28
发明人： Haruyo Soya , Yuki Katayama
摘要： The present invention provides a method for preserving a leuco chromogen-containing aqueous solution comprising: adding at least one acid compound selected from the group consisting of a phosphoric acid compound, a carboxylic acid compound, a sulfonic acid compound, and a sulfuric acid compound to a leuco chromogen-containing aqueous solution; a method for stabilizing a leuco chromogen in an aqueous solution comprising: adding at least one acid compound selected from the group consisting of a phosphoric acid compound, a carboxylic acid compound, a sulfonic acid compound, and a sulfuric acid compound to a leuco chromogen-containing aqueous solution; and a liquid reagent comprising a leuco chromogen and at least one acid compound selected from the group consisting of a phosphoric acid compound, a carboxylic acid compound, a sulfonic acid compound, and a sulfuric acid compound.
-
公开(公告)号：US06846335B2
公开(公告)日：2005-01-25
申请号：US10105846
申请日：2002-03-25
IPC分类号： C08K5/3465 , C08L101/00 , C09B57/00 , C09B57/08 , C09B57/12 , C09B67/14 , C09B67/46 , C09B67/48 , C09B5/44
CPC分类号： C09B57/12 , C09B67/0025
摘要： A novel crystal form of C.I. Solvent Orange 60 gives a higher space-time yield in dye synthesis and is more easily finished.
摘要翻译： 一种新颖的晶体形式C.I. 溶剂橙60在染料合成中具有更高的空时收率，并且更容易完成。
-
4.发明授权
公开(公告)号：US5318626A
公开(公告)日：1994-06-07
申请号：US78323
申请日：1993-06-22
申请人： Hitoshi Maki , Shigeki Kato
发明人： Hitoshi Maki , Shigeki Kato
CPC分类号： C09B67/0017 , C09B67/0014
摘要： A process for converting a 2,9-dimethylquinacridone compound into a pigment, which comprises pouring a solution of a crude 2,9-dimethylquinacridone compound in sulfuric acid into continuously flowing water to form a fine precipitate, recovering said precipitate by filtration, washing it with water, adding it to a lower alcohol having 1 to 4 carbon atoms and heating the resultant mixture to 60.degree.-200.degree. C.
摘要翻译： PCT No.PCT / JP92 / 01462 Sec。 371日期：1993年6月22日 102（e）日期1993年6月22日PCT 1992年11月6日PCT PCT。 出版物WO93 / 09186 日本公报1993年5月13日。一种将2,9-二甲基喹吖啶酮化合物转化成颜料的方法，其包括将粗制的2,9-二甲基喹吖啶酮化合物在硫酸中的溶液倒入连续流动的水中形成细小的沉淀物，回收所述 通过过滤沉淀，用水洗涤，将其加入到具有1至4个碳原子的低级醇中，并将所得混合物加热至60℃-200℃。
-
5.发明授权Process for the preparation of perylene-3,4,9,10-tetracarboxydiimides in a coloristically valuable pigment form 失效在有色金属色素形式中制备PERYLENE-3,4,9,10-TETRACARBOXYDIIMID的方法
公开(公告)号：US5145964A
公开(公告)日：1992-09-08
申请号：US662053
申请日：1991-02-28
IPC分类号： C07D471/06 , C09B5/62 , C09B67/04 , C09B67/10 , C09B67/14
CPC分类号： C09B67/0014
摘要： Brilliant and easily dispersible perylene-3,4,9,10-tetracarboxydiimide pigments of high color strength and N-alkyl derivatives thereof having 1 to 4 carbon atoms per alkyl group can be prepared by subjecting finely divided crude pigments to a treatment by means of a mixture of water and an organic solvent from the class of alcohols, ketones, carboxylic acids or carboxylic esters.
摘要翻译： 具有高着色强度的具有1至4个碳原子的高颜色强度的绚丽且容易分散的苝-3,4,9,10-四羰二酰亚胺颜料可以通过使细碎的粗颜料经受 来自醇，酮，羧酸或羧酸酯类的水和有机溶剂的混合物。
-
公开(公告)号：US5116997A
公开(公告)日：1992-05-26
申请号：US684874
申请日：1991-04-15
申请人： Reinhold Kohlhaupt
发明人： Reinhold Kohlhaupt
CPC分类号： C09B7/02 , C09B67/0017 , C09B67/0096
摘要： A process for the purification of indigo comprises treating the indigo with sulfuric acid to give indigo sulfate, separating off and subsequently hydrolyzing the latter to re-form indigo, and then treating the dye with dilute hydrogen peroxide solution.
摘要翻译： 纯化靛蓝的方法包括用硫酸处理靛蓝，得到硫酸靛蓝，分离出来，随后水解靛蓝以重新形成靛蓝，然后用稀的过氧化氢溶液处理染料。
-
7.发明授权
公开(公告)号：US5086168A
公开(公告)日：1992-02-04
申请号：US578014
申请日：1990-09-05
申请人： Wolfgang Rieper
发明人： Wolfgang Rieper
IPC分类号： G03G9/09 , A61K8/18 , A61Q1/02 , B41M5/00 , C09B29/01 , C09B29/32 , C09B41/00 , C09B67/14 , C09B67/20 , C09B67/54 , D06P5/00
CPC分类号： C09B41/006 , C09B29/0003 , C09B41/001 , C09B67/0096 , Y10T436/196666
摘要： The invention relates to monoazo pigments prepared from dichloroanilines as diazo components and CH-acidic coupling components of the acetoacetarylamide or naphthol series, these pigments only containing an extremely low level of polychlorinated biphenyls (PCBs) (at most 25 .mu.g per g of pigment).The process for preparing the pigments takes the form of an azo coupling in an aqueous medium, whereina) azo coupling is effected by adding the diazonium salt solution to a suspension or solution of the coupling component or by simultaneously metering the aqueous suspensions or solutions of the diazonium salt and of the coupling component into the reaction mixture,b) azo coupling is effected at a pH or within a pH range of less than pH 7 andb1) between pH 4 and 7 during and after azo coupling less than 0.05 mol-%,b2) at pH 2 to 4 during azo coupling less than 5 mol-%, andb3) at pH
-
8.发明授权
公开(公告)号：US4969954A
公开(公告)日：1990-11-13
申请号：US397538
申请日：1989-08-22
CPC分类号： C09B1/005
摘要： Process for preparing 4,4'-diamino-1,1'-dianthraquinonyl pigments by desulphonation of 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulphonic acid in sulphuric acid, characterized in that after the desulphonation water is added to the sulphuric acid solution, 4,4'-diamino 1,1'-dianthraquinonyl is isolated as sulphate, the sulphate is hydrolyzed, if necessary by redissolving it in sulphuric acid and adding the solution to water, and the pigment is isolated, if necessary, after treatment with an organic solvent.
摘要翻译： 通过在硫酸中脱硫4,4'-二氨基-1,1'-二蒽醌基-3,3'-二磺酸制备4,4'-二氨基-1,1'-二蒽醌基颜料的方法，其特征在于在 将脱硫水加入到硫酸溶液中，分离出4,4'-二氨基1,1'-二蒽醌基作为硫酸盐，如果需要，硫酸盐被水解，然后将其溶解在硫酸中，并将溶液加入到水中，颜料 如有必要，用有机溶剂处理后分离。
-
9.发明授权
公开(公告)号：US4535151A
公开(公告)日：1985-08-13
申请号：US610935
申请日：1984-05-16
CPC分类号： C09B67/0095 , C09B67/0017 , C09B67/0021
摘要： A process for the wet granulation of organic pigment is disclosed which consists in treating under vigorous agitation an aqueous suspension of pigment with acetic anhydride, propionic anhydride or a mixture thereof. Acetic anhydride is used preferentially. After hydrolysis of the anhydride, besides the granules, an aqueous solution of acid or its corresponding salt, directly saleable or re-usable in the chemical industry, is recovered whereby problems related to the recovery of organic solvents are avoided.
摘要翻译： 公开了一种用于有机颜料的湿法造粒的方法，其包括在剧烈搅拌下用乙酸酐，丙酸酐或其混合物处理颜料的水性悬浮液。 乙酸酐优先使用。 酸酐的水解后，除了颗粒之外，可回收在化学工业中直接可销售或可重复使用的酸或其相应的盐的水溶液，从而避免与有机溶剂的回收有关的问题。
-
10.发明授权Process for the preparation of pigments of the perylene-3,4,9,10-tetracarboxylic acid diimide series, and their use 失效苝-3,4,9,10-四羧酸二酰亚胺系列颜料的制备方法及其用途
公开(公告)号：US4431806A
公开(公告)日：1984-02-14
申请号：US261927
申请日：1981-05-08
申请人： Ernst Spietschka , Manfred Urban
发明人： Ernst Spietschka , Manfred Urban
CPC分类号： C09B67/0017 , C09B67/0002
摘要： Very pure, transparent pigments of high color strength, of the formula ##STR1## in which R is hydrogen or alkyl having 1 to 4 C atoms, X is chlorine and/or bromine and n is a number from 0 to 4 are obtained by converting the corresponding crude pigment to the sulfate, isolating the sulfate, liberating the pure product from the sulfate by hydrolysis, separating off the pure product and dry milling the anhydrous material, with or without additives and with or without subsequent solvent finishing. These pigments are suitable for coloring paints and plastic compositions, especially for pigmenting metallic paints.
摘要翻译： 具有高着色强度的非常纯的透明颜料，其中R为氢或具有1至4个C原子的烷基，X为氯和/或溴，n为0至4的数的式“IMAGE”通过转化 将相应的粗颜料与硫酸盐分离，分离出硫酸盐，通过水解从硫酸盐中释出纯产物，分离纯产物，并干燥研磨无水材料，加入或不添加添加剂，并进行或不进行后续溶剂整理。 这些颜料适用于着色油漆和塑料组合物，特别是用于着色金属涂料。
-
-
-
-
-
-
-
-
-
搜索结果
83 条记录 (耗时 0.021 秒)
