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Application filed by Institutul De Chimie Macromoleculara "Petru Poni"filedCriticalInstitutul De Chimie Macromoleculara "Petru Poni"
Priority to RO103404ApriorityCriticalpatent/RO81410B1/ro
Publication of RO81410A2publicationCriticalpatent/RO81410A2/ro
Publication of RO81410B1publicationCriticalpatent/RO81410B1/ro
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(AREA)
Abstract
Procedeul de obtinere a schimbarilor de anioni puternic bazici, consta în faptul ca un copolimer reticulat al esterilor cilici ce contin gruparea aminica tertiara în catena macromoleculara prin legatura amidica sau esterica, se supune reactiei de cuaternizare cu clorura de metil, dimetilsulfatul, clorura de benzil, epiclorhidrina, la raporturi molare de 1/1...1/8, la temperatura de -30....+80 degree C.
RO103404A1981-02-131981-02-13Procedeu de preparare a schimbatorilor de anioni puternic bazici
RO81410B1
(ro)
Procede de preparation de mousses de polyurethannes avec utilisation, comme catalyseurs, de polyamines ramifiees contenant au moins 4 atomes d'azote tertiaires
Procedimento di generazione mediante stozzatura per laproduzione di profili su pezzi dilavoro, nonche' dispositivo perl'attuazione del procedimento.