Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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Hoechst AG
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Hoechst AG
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Application grantedgrantedCritical
Publication of GB191117437ApublicationCriticalpatent/GB191117437A/en
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B7/00—Indigoid dyes
C09B7/02—Bis-indole indigos
C09B7/04—Halogenation thereof
Abstract
17,437. Farbwerke vorm. Meister, Lucius, & Br³ning. Aug. 1, 1910, [Convention date]. Indigo preparations suitable for use in the vat are obtained bv mixing with indigo one of the acids mentioned in Specifications 18,761/10 and 20,324/10; sodium benzylsulphanilate or the chloride of dimethylphenylbenzylammonium disulphonate are specified; the products thus obtained give rise in the vat to finely subdivided, easily reducible indigo. Specification 17,045/11 is referred to. Clay, starch, sugars, glycerine, or other substances, such as are described in Specification 4647/05, may be added.
GB191117437D1910-08-011911-07-31Manufacture of Preparations suitable for the Indigo-vat.
ExpiredGB191117437A
(en)