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
Application number
Inventor
Robert Bolton Ransford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB191007060ApublicationCriticalpatent/GB191007060A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
7060. Ransford, R. B., [Cassella & Co., L.]. March 21. Monoazo dyes are obtained by combining o-diazophenolic compounds with alkylamino- or arylamino-alpha-naphthols. The following combinations are specified :-nitroaminoacetaminophenol and 1- ethylamino - 5 - naphthol ; 1-amino-2-naphthol-4- sulphonic acid and 1-phenylamino-8-naphthol. The products dye wool with chrome mordants. 1-Phenylamino-8-naphthol is obtained by melting 1 - phenylnaphthylamine - 8 - sulphonic acid with alkalies.
GB191007060D1910-03-211910-03-21The Manufacture of Dyestuffs.
ExpiredGB191007060A
(en)