Process for the preparation of bis(4-hydroxyphenyl) sulfone
    111.
    发明授权
    Process for the preparation of bis(4-hydroxyphenyl) sulfone 失效
    制备BIS(4-羟基苯基)硫醚的方法

    公开(公告)号:US5072049A

    公开(公告)日:1991-12-10

    申请号:US460648

    申请日:1990-01-03

    CPC classification number: C07C315/00

    Abstract: A process for the preparation of bis(4-hydroxyphenyl) sulfone by reacting phenol with sulfuric acid at a temperature of from 140.degree. to 230.degree. C., wherein the sulfuric acid is metered in to the phenol only after the reaction temperature has been reached, the phenol and sulfuric acid are used in a molar ratio of from 1:1 to 25:1 and the reaction is carried out in the absence of an inert solvent.

    Abstract translation: 在140〜230℃的温度下,通过苯酚与硫酸反应来制备双(4-羟基苯基)砜的方法,其中只有在达到反应温度之后,将硫酸计量加入到苯酚中 ,苯酚和硫酸的摩尔比为1:1至25:1,反应在不存在惰性溶剂的情况下进行。

    Transfer of AZO dyes
    113.
    发明授权
    Transfer of AZO dyes 失效
    转移AZO染料

    公开(公告)号:US5037798A

    公开(公告)日:1991-08-06

    申请号:US358142

    申请日:1989-05-30

    CPC classification number: B41M5/388 Y10S428/913 Y10S428/914

    Abstract: Azo dyes are transferred from a substrate to a plastic-coated paper by diffusion with the aid of a thermal printing head, these azo dyes having the formula ##STR1## where R.sup.1 and R.sup.2 are each independently of the other hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted phenyl,R.sup.3 is hydrogen, alkyl, alkoxy or substituted or unsubstituted alkanoyl- or benzoyl-amino,R.sup.4 is hydrogen, chlorine, alkyl, alkoxy, alkylthio or substituted or unsubstituted phenyl andR.sup.5 is cyano, substituted or unsubstituted alkoxy- or phenoxy-carbonyl or substituted or unsubstituted mono- or di-alkyl- or -phenyl-carbamoyl.

    Abstract translation: 偶氮染料借助于热敏印刷头通过扩散从基底转移到塑料涂布的纸上,这些偶氮染料具有式“IMAGE”,其中R 1和R 2各自独立于另一个氢,取代或未取代的烷基或 取代或未取代的苯基,R3是氢,烷基,烷氧基或取代或未取代的烷酰基或苯甲酰氨基,R4是氢,氯,烷基,烷氧基,烷硫基或取代或未取代的苯基,R5是氰基,取代或未取代的烷氧基 - 或 苯氧基 - 羰基或取代或未取代的单 - 或二 - 烷基 - 或 - 苯基 - 氨基甲酰基。

    Azo dyes containing thienothiophene radicals as radicals of the diazo
component
    115.
    发明授权
    Azo dyes containing thienothiophene radicals as radicals of the diazo component 失效
    含有噻吩并噻吩作为重氮组分的自由基的偶氮染料

    公开(公告)号:US4843153A

    公开(公告)日:1989-06-27

    申请号:US68341

    申请日:1987-07-01

    CPC classification number: C09B29/0059

    Abstract: Thienothiophene dyes of the formula ##STR1## wherein Z is carboxylate, acyl, carboxyl, substituted or unsubstituted carbamoyl, cyano or nitro, X is hydrogen, fluorine, chlorine, bromine, Z or a group of the formula ##STR2## T.sup.1 and T.sup.2 are identical or different and each is independently of the other cyano, substituted or unsubstituted alkoxycarbonyl, alkenyloxycarbonyl, carbamoyl or alkylcarbamoyl and W is hydrogen, methyl or ethyl, Y is hydrogen, chlorine or bromine and K is the radical of a coupling component, are highly suitable for dyeing synthetic fibers, in particular polyesters wherein the dyeing obtained have good fastness properties.

    Abstract translation: 式中:Z为羧酸酯,酰基,羧基,取代或未取代的氨基甲酰基,氰基或硝基的噻吩并噻吩染料,X为氢,氟,氯,溴,Z或式CHCT1T2,CHNOH,CHNNHC6H5或+ T1和T2相同或不同,各自独立地为其它氰基,取代或未取代的烷氧基羰基,烯氧基羰基,氨基甲酰基或烷基氨基甲酰基,W为氢,甲基或乙基,Y为氢,氯或溴,K为 偶联组分的基团非常适合于染色合成纤维,特别是其中所得染色具有良好牢度性能的聚酯。

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