Anthraquinone dye compounds
    57.
    发明授权
    Anthraquinone dye compounds 失效
    蒽醌染料化合物

    公开(公告)号:US2967871A

    公开(公告)日:1961-01-10

    申请号:US72002458

    申请日:1958-03-10

    CPC classification number: C09B1/545 C09B1/36

    Abstract: n-Heptyl, n-octyl and 2-ethylhexyl chloroformates are made by adding n-heptyl, n-octyl or 2-ethythexyl alcohols respectively to an excess of phosgene.ALSO:The invention comprises red dyestuffs of the formula: where X is a methyl, ethyl, betamethoxyethyl or betaethoxyethyl group and Y is an alkyl group of 4 to 8 carbon atoms or a cyclohexyl group, and a process for making them by condensing a compound of the formula: with a haloformic acid ester of the formula: where Z is chlorine or bromine. The dyestuffs dye polyester and cellulose ester textile materials directly from aqueous dispersion. 1 : 4- Diamino-2-b - methoxyethoxy- orethoxyethoxyanthraquinone is made by heating 1- amino- 4- p-toluenesulphonamido-anthraquinone -2- sulphonic acid in a melt of potassium hydroxide with ethylene glycol, monomethyl or mono-ethyl ether.

Patent Agency Ranking