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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AGfiledCriticalHoechst AG
Priority to ES0232712ApriorityCriticalpatent/ES232712A2/en
Publication of ES232712A2publicationCriticalpatent/ES232712A2/en
Improvements introduced in the object of the main patent number 231959 by a process for the purification of sorbic acid characterized in that instead of a glycol or a monoalkyl glycol ether, at least one substance boiling between 180º and 300º at normal pressure is used., distillable without decomposing and indifferent to sorbic acid. (Machine-translation by Google Translate, not legally binding)
ES0232712A1956-12-281956-12-28Procedure for purification of carboxylic acids (Machine-translation by Google Translate, not legally binding)
ExpiredES232712A2
(en)
A procedure for obtaining a condensation compound from three molecules of sulfatizool and three of formaldehyde (Machine-translation by Google Translate, not legally binding)
Procedure for the treatment of recovery of aqueous solutions containing glycolic ether and hexadienic acids. (Machine-translation by Google Translate, not legally binding)