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.)
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.)
ROVIRA BACHS Y MACIA
Original Assignee
ROVIRA BACHS Y MACIA
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Filing date
Publication date
Application filed by ROVIRA BACHS Y MACIAfiledCriticalROVIRA BACHS Y MACIA
Priority to ES0190839ApriorityCriticalpatent/ES190839A3/es
Publication of ES190839A3publicationCriticalpatent/ES190839A3/es
Polymers With Sulfur, Phosphorus Or Metals In The Main Chain
(AREA)
Abstract
Procedimiento para fabricación de colorantes sulfurosos azules consistente en que los productos obtenidos por condensación de nitrosofenoles y carbazol en presencia de ácido sulfúrico se calientan con polisulfuros alcalinos.
ES0190839A1949-12-101949-12-10PROCEDIMIENTO PARA FABRICACIoN DE COLORANTES SULFUROSOS AZULES
ExpiredES190839A3
(es)
PROCEDIMIENTO PARA LA FABRICACIoN DE COLORANTES CUBA AZULES DE LA SERIE SULFiNICA, PERTIENDO DE LOS PRODUCTOS OBTENIDOS POR CONDENSACIoN DE LOS NITROSOFENOLES Y CARBAZOL, EN PRESENCIA DEL áCIDO SULFuRICO CONCENTRADO, O BIEN DE SUS LEUCO-COMPUESTOS