DISPERSE AZO DYES, A PROCESS FOR THE PREPARATION THEREOF AND THE USE THEREOF

    公开(公告)号:US20230082859A1

    公开(公告)日:2023-03-16

    申请号:US17792982

    申请日:2021-01-13

    摘要: The present invention relates to azo dyes of formula (1), wherein D is a radical of formula (2) or (3), R1 and R2 independently denote hydrogen; C6-C10aryl which is unsubstituted or substituted by cyano, carboxy, hydroxy, halogen, C1-C6alkyl, or C1-C6alkoxy; C1-C12alkyl which may be interrupted one or more times by —O—, —S—, —NR4—, —CO—, —COO— or —OOC—, and is unsubstituted or substituted by cyano, carboxy, hydroxy, C6-C10aryl, or C6-C10aryloxy, which C6-C10aryl or C6-C10aryloxy is unsubstituted or substituted by cyano, carboxy, hydroxy, halogen, C1-C6alkyl, or C1-C6alkoxy; R3 and R4 are each independently of the other hydrogen, halogen, nitro, cyano, trifluoromethyl, carboxy, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylcarbonyl, C6-C10arylcarbonyl, C1-C6alkoxycarbonyl, C—C6alkylsulfonyl, C1-C6alkylsulfonylamino or C1-C4alkanoylamino; and R5 is halogen, nitro, cyano, trifluoromethyl, carboxy, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylcarbonyl, C6-C10arylcarbonyl, C1-C6alkoxycarbonyl, C1-C6alkylsulfonyl, C1-C6alkylsulfonylamino or C1-C4alkanoylamino; and R6, R7, R8 and R9 independently of each other are hydrogen, hydroxy, halogen, cyano, nitro or C1-C4alkanoylamino, and the radicals X independently denote N or C—H, with the proviso that at least one radical X denotes C—H, which are distinguished by their good lightfastness properties.

    Use of 2,6-dinitro-aniline derivatives in hair dyes and new
2,6-dinitro-aniline derivatives
    4.
    发明授权
    Use of 2,6-dinitro-aniline derivatives in hair dyes and new 2,6-dinitro-aniline derivatives 失效
    染发剂中使用2,6-二硝基苯胺衍生物和新的2,6-二硝基苯胺衍生物

    公开(公告)号:US5030241A

    公开(公告)日:1991-07-09

    申请号:US283948

    申请日:1988-11-21

    CPC分类号: A61K8/418 A61Q5/065 A61Q5/10

    摘要: The method of dyeing hair comprises applying to the hair a dye containing a 2,6-dinitro-aniline derivative having the general formula (I) ##STR1## wherein R represents H, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 monohydroxy alkyl or C.sub.3 -C.sub.4 -dihydroxy alkyl and X represents one of the radicals C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 monohydroxy alkyl, C.sub.1 -C.sub.4 perfluoro alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 monohydroxy alkoxy, C.sub.3 -C.sub.4 dihydroxy alkoxy or halogen. The present invention also comprises hair dyes containing at least one compound having the formula (I) and novel 2,6-dinitro-aniline derivatives. The dyes having the formula (I) have good physiological properties and provide all the yellow shades required for dyeing from a bluish-tinged lemon-yellow via a pure yellow to red-orange.

    摘要翻译: PCT No.PCT / EP88 / 00260 Sec。 371日期:一九八九年十一月二十一日 102(e)日期1989年11月21日PCT提交1988年3月29日PCT公布。 出版物WO88 / 08696 日本公开号为1988年11月17日。头发染色方法包括向毛发施加含有通式(I)的2,6-二硝基苯胺衍生物(I)的染料,其中R表示H,C1-C4 烷基,C 2 -C 4单羟基烷基或C 3 -C 4二羟基烷基,X代表基团C 1 -C 4烷基,C 2 -C 4单羟基烷基,C 1 -C 4全氟烷基,C 1 -C 4烷氧基,C 2 -C 4单羟基烷氧基,C 3 -C4二羟基烷氧基或卤素。 本发明还包含含有至少一种具有式(I)的化合物和新的2,6-二硝基苯胺衍生物的染发剂。 具有式(I)的染料具有良好的生理特性,并且通过纯黄色至红橙色提供从蓝调柠檬黄染色所需的全部黄色色调。

    Process for the preparation of nitroanilines
    5.
    发明授权
    Process for the preparation of nitroanilines 失效
    制备硝基苯胺的方法

    公开(公告)号:US4973757A

    公开(公告)日:1990-11-27

    申请号:US819636

    申请日:1986-01-17

    CPC分类号: A61K8/418 A61Q5/065 A61Q5/10

    摘要: The invention relates to a process for the preparation of nitroanilines, which consists in reacting an amine RNH.sub.2, or ammonia, with 3,4-methylenedioxynitriobenzene to give the products of the formula: ##STR1## in which R denotes hydrogen, alkyl, monohydroxyalkyl or polyhydroxyalkyl, alkoxyalkyl or aminoalkyl of the formula: ##STR2## in which R.sub.1 and R.sub.2, which are identical or different, denote hydrogen, alkyl or monohydroxyalkyl or polyhydroxyalkyl and n denotes an integer from 2 to 4, or of the formula: ##STR3## in which A denotes OCH.sub.2 or ##STR4## and R.sub.1 denotes --CH.sub.2 CH.sub.2 OH or ##STR5## or their salts. The invention also relates to the dyeing compositions for keratin fibres, and in particular for hair, which contain a dyestuff of the above formula (I) in which R denotes alkyl, polyhydroxyalkyl, alkoxyalkyl or aminoalkyl of the abovementioned formula, and to the dyestuffs of the formula (I) in which R denotes alkoxyalkyl or aminoalkyl of the above formula, and of the formula (IIB), which are novel.

    摘要翻译: 本发明涉及一种制备硝基苯胺的方法,该方法包括使胺RNH2或氨与3,4-亚甲二氧基三苯胺反应,得到下式的产物:其中R表示氢,烷基 ,单羟基烷基或多羟基烷基,烷氧基烷基或氨基烷基,其中R 1和R 2相同或不同,表示氢,烷基或单羟基烷基或多羟基烷基,n表示2至4的整数,或下式: (IIB)其中A表示OCH2或,R1表示-CH2CH2OH或者它们的盐。 本发明还涉及用于角蛋白纤维,特别是毛发的染色组合物,其含有上述式(I)的染料,其中R表示上述式的烷基,多羟基烷基,烷氧基烷基或氨基烷基,以及染料 其中R表示上式的烷氧基烷基或氨基烷基和式(IIB)的式(I),其为新颖的。

    Disperse azo dyes, a process for the preparation thereof and the use thereof

    公开(公告)号:US11946198B2

    公开(公告)日:2024-04-02

    申请号:US17792982

    申请日:2021-01-13

    摘要: The present invention relates to azo dyes of formula (1), wherein D is a radical of formula (2) or (3), R1 and R2 independently denote hydrogen; C6-C10 aryl which is unsubstituted or substituted by cyano, carboxy, hydroxy, halogen, C1-C6alkyl, or C1-C6alkoxy; C1-C12alkyl which may be interrupted one or more times by —O—, —S—, —NR4—, —CO—, —COO— or —OOC—, and is unsubstituted or substituted by cyano, carboxy, hydroxy, C6-C10 aryl, or C6-C10 aryloxy, which C6-C10 aryl or C6-C10 aryloxy is unsubstituted or substituted by cyano, carboxy, hydroxy, halogen, C1-C6alkyl, or C1-C6alkoxy; R3 and R4 are each independently of the other hydrogen, halogen, nitro, cyano, trifluoromethyl, carboxy, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylcarbonyl, C6-C10 arylcarbonyl, C1-C6alkoxycarbonyl, C1-C6alkylsulfonyl, C1-C6alkylsulfonylamino or C1-C4 alkanoylamino; and R5 is halogen, nitro, cyano, trifluoromethyl, carboxy, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylcarbonyl, C6-C10 arylcarbonyl, C1-C6alkoxycarbonyl, C1-C6alkylsulfonyl, C1-C6alkylsulfonylamino or C1-C4 alkanoylamino; and R6, R7, R8 and R9 independently of each other are hydrogen, hydroxy, halogen, cyano, nitro or C1-C4 alkanoylamino, and the radicals X independently denote N or C—H, with the proviso that at least one radical X denotes C—H, which are distinguished by their good lightfastness properties.

    A METHOD OF DYEING A SUBSTRATE COMPRISING ELASTOMERIC FIBRE AND NON-ELASTOMERIC FIBRE, AND A DYED SUBTRATE COMPRISING THESE FIBRES

    公开(公告)号:US20200263353A1

    公开(公告)日:2020-08-20

    申请号:US15998652

    申请日:2016-02-18

    IPC分类号: D06P3/82 D06P1/19 D06P1/94

    摘要: The present invention relates to a method of dyeing a substrate comprising (i) elastomeric fibre containing at least 30 wt. % of a first polymer having a glass transition temperature T of less than 60° C. and (ii) non-elastomeric companion fibre containing more than 50 wt. % of a second polymer, said second polymer being polymer having no glass transition temperature or polymer Shaving a glass transition temperature T2 that is at least 20° C. higher than T1, said method comprising: a) contacting the substrate with a dyeing medium to produce a pre-dyed substrate comprising 10 dyed elastomeric fibre and dyed companion fibre; b) contacting the pre-dyed substrate with an extraction medium at a temperature Te and a pressure Pe, to produce a high fastness dyed substrate, said extraction medium comprising at least 50 wt. % of supercritical or liquefied carbon dioxide; wherein Te exceeds Tg1,extraction and wherein Te is less than Tg2,extraction in case the companion 1 fibre contains more than 50 wt. % of polymers having a glass transition temperature T2; Tg1,extraction representing the glass transition temperature of the first polymer in carbon dioxide at pressure Pe; and Tg2, extraction representing the glass transition temperature of the second polymer in carbon dioxide at pressure Pe. 20 The present method enables the production of dyed substrates containing elastomeric fibre as well as non-elastomeric companion fibre that exhibit extremely high colour fastness because the dye is almost exclusively contained in the companion fibres. The present invention also provides a dyed substrate that can be obtained by the 2 aforementioned dyeing method.