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Unilever NV
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Unilever NV
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Priority claimed from GB21686/55Aexternal-prioritypatent/GB836988A/en
Application filed by Unilever NVfiledCriticalUnilever NV
Publication of ES229997A1publicationCriticalpatent/ES229997A1/es
Perfeccionamientos en los procedimientos de blanqueo caracterizados porque consisten en tratar los materiales a blanquear con una solución acuosa de peróxido de hidrógeno y un éter que tiene un título, en el ensayo definido en la presente, de no menos que 1.5ml. de Na2S2O3 0.1N.
ES0229997A1955-07-271956-07-26Perfeccionamientos en los procedimientos de blanqueo
ExpiredES229997A1
(es)
PROCEDIMIENTO PARA TENIR ÉSTERES CELULoSICOS Y MATERIALES DE COMPORTAMIENTO TINToREO SIMILAR, Y PARA LA OBTENCIoN DE CORRESPONDIENTES PREPARACIONES TINToREAS