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 Institutul De Cercetari ChimicefiledCriticalInstitutul De Cercetari Chimice
Priority to RO121205ApriorityCriticalpatent/RO92779B1/en
Publication of RO92779A2publicationCriticalpatent/RO92779A2/en
Publication of RO92779B1publicationCriticalpatent/RO92779B1/en
Inventia se refera la un procedeu de preparare a unor esteri bis-piperidinici, utilizati ca stabilizatori pentru polimeri din clasa aminelor împiedicate steric, prin reactia de transesterificare a esterilor metilici al unor acizi dicarboxilici corespunzatori cu 2,2,6,6-tetrametil-4-piperidinol, în prezenta de catalizator si solvent.The invention relates to a process for the preparation of bis-piperidine esters used as stabilizers for sterically hindered amine-grade polymers by the transesterification reaction of the methyl esters of the corresponding dicarboxylic acids with 2,2,6,6-tetramethyl-4 -piperidinol, in the presence of catalyst and solvent.
RO121205A1985-12-191985-12-19Process for the preparation of bis-piperidine esters
RO92779B1
(en)