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.)
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
Publication of ES232530A1publicationCriticalpatent/ES232530A1/es
Procedimiento para la fabricación de papel carbón y papel de calcar, especialmente negro, aplicando sobre un papel de soporte una caja de material plástico en la que se incorpora una solución o dispersión de colorantes o pigmentos; caracterizado porque los colorantes o pigmentos se estabilizan o mantienen en dispersión con ayuda de compuestos macrocíclicos coloidalmente solubles, que obran como coloides protectores.
ES0232530A1955-12-141956-12-13PROCEDIMIENTO PARA LA FABRICACIoN DE PAPEL CARBoN Y PAPEL DE CALCAR
ExpiredES232530A1
(es)