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.)
IRIBARNEGARAY AGUIRREZABAL
Original Assignee
IRIBARNEGARAY AGUIRREZABAL
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Filing date
Publication date
Application filed by IRIBARNEGARAY AGUIRREZABALfiledCriticalIRIBARNEGARAY AGUIRREZABAL
Priority to ES354879ApriorityCriticalpatent/ES354879A1/en
Publication of ES354879A1publicationCriticalpatent/ES354879A1/en
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(AREA)
Abstract
Process for obtaining solvents of the polyvinyl polymer type of pharmaceutical interest, based on the reaction between 86 g. Of polyvinyl acetate or 62.5 g. Of polyvinyl chloride and 27 to 48 g. Of methanol in 250 g. Of methyl acetate, using 2 ml. Of sulfuric acid of density 1.87 as catalyst, with subsequent evaporation of the organic solvent in vacuo. (Machine-translation by Google Translate, not legally binding)
ES354879A1968-06-101968-06-10Procedure for obtaining solvents for pharmaceutical use. (Machine-translation by Google Translate, not legally binding)
ExpiredES354879A1
(en)
Procedure for the monohydration of the equimolecular complex formed by ascorbic acid and pyridoxine. (Machine-translation by Google Translate, not legally binding)