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21. 发明授权

US4969954A Process for preparing 4,4'-diamino-1,1'-dianthraquinonyl pigments 失效
标题翻译：制备4,4'-二氨基-1,1'-二蒽醌颜料的方法
公开(公告)号：US4969954A
公开(公告)日：1990-11-13
申请号：US397538
申请日：1989-08-22
申请人： Detlef-Ingo Schutze , Werner Steinbeck , Anton Adams
发明人： Detlef-Ingo Schutze , Werner Steinbeck , Anton Adams
IPC分类号： C09B1/16 , B01F17/08 , C09B1/00 , C09B67/14
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。

22. 发明授权

US4260778A Process for the preparation of thioindigo compounds 失效
标题翻译：制备硫靛化合物的方法
公开(公告)号：US4260778A
公开(公告)日：1981-04-07
申请号：US40520
申请日：1979-05-21
申请人： Detlef-Ingo Schutze , Klaus Wunderlich
发明人： Detlef-Ingo Schutze , Klaus Wunderlich
IPC分类号： C09B7/10
CPC分类号： C09B7/10
摘要： Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,characterized in that compounds of the formula ##STR2## in which A and B have the meaning indicated above andX designates halogen, such as bromine and, preferably, chlorine,are reacted in a liquid mixture of an aluminium halide, an alkali metal halide and SO.sub.2 and the resulting intermediate product is then oxidized in a manner which is in itself known, if appropriate after first being isolated, and the mixture is worked up to give the compounds of the formula (I).
摘要翻译：制备式（I）的硫靛化合物的方法，其中A和B表示相同或不同的任选取代的苯环或苯环，其上还有碳环和杂环稠合，其特征在于式（IIa）（IIb）其中A和B具有上述含义，X表示卤素，例如溴，优选氯，在卤化铝，碱金属卤化物的液体混合物中反应然后将所得中间产物以本身已知的方式氧化，如果在首次分离后适当，则将其混合，得到式（I）化合物。

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