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Inventia se refera la un procedeu pentru obtinerea unor rasini poliesterice nesaturate prin poliesterificarea anhidridei tetrahidroftalice sau endometilentetrahidroftalice cu acizi dicarboxilici nesaturati si glicoli, într-o singura treapta, la temperaturi de 180...220 degree C. Se obtin rasini poliesterice nesaturate cu contractie redusa la reticulare, utilizabile în industria produselor de acoperire.
RO122691A1986-03-221986-03-22Procedeu pentru obtinerea unor rasini poliesterice nesaturate
RO94732B1
(ro)
Procede de preparation de copolyamides a base d'hexamethylenediamine, d'acide adipique, eventuellement d'au moins un autre diacide carboxylique a chaine courte et acide dimere
Procede de preparation de copolyamides a base d'hexamethylenediamine d'acide adipique eventuellement d'au moins un autre diacide carboxylique a chaine courte et d'acide dinere