The above deficiencies, in the art are alleviated by, in an embodiment, a method of preparing a carboxylic acid end-capped oligomer comprising melt reacting a dicarboxylic acid, a dihydroxy compound, a hydroxy end-capped soft block compound, a diaryl carbonate, and a catalyst, wherein the molar ratio of dihydroxy end-capped soft block compound to dihydroxy compound is 1:4 to 1:40, the molar ratio of dicarboxylic acid to the combined molar amounts of dihydroxy compound and hydroxy end-capped soft block compound is 1.01:1 to 2:1, and the molar ratio of diaryl carbonate to the combined molar amounts of dihydroxy compound and hydroxy end-capped soft block compound is 1.5:1 to 3:1. A carboxylic acid end-capped oligomer prepared by the above method is also disclosed. A thermosetting composition comprising the carboxylic acid end-capped oligomer, and an article comprising the thermosetting composition, are also disclosed.
Berti C. , Binassi E. , Brunelle D. J. , Colonna M. , Fiorini M. , Zuccheri T. (2006). POLYESTER OLIGOMERS, METHODS OF MAKING, AND THERMOSETTING COMPOSITIONS FORMED THEREFROM.
POLYESTER OLIGOMERS, METHODS OF MAKING, AND THERMOSETTING COMPOSITIONS FORMED THEREFROM
BERTI, CORRADO;BINASSI, ENRICO;COLONNA, MARTINO;FIORINI, MAURIZIO;ZUCCHERI, TOMMASO
2006
Abstract
The above deficiencies, in the art are alleviated by, in an embodiment, a method of preparing a carboxylic acid end-capped oligomer comprising melt reacting a dicarboxylic acid, a dihydroxy compound, a hydroxy end-capped soft block compound, a diaryl carbonate, and a catalyst, wherein the molar ratio of dihydroxy end-capped soft block compound to dihydroxy compound is 1:4 to 1:40, the molar ratio of dicarboxylic acid to the combined molar amounts of dihydroxy compound and hydroxy end-capped soft block compound is 1.01:1 to 2:1, and the molar ratio of diaryl carbonate to the combined molar amounts of dihydroxy compound and hydroxy end-capped soft block compound is 1.5:1 to 3:1. A carboxylic acid end-capped oligomer prepared by the above method is also disclosed. A thermosetting composition comprising the carboxylic acid end-capped oligomer, and an article comprising the thermosetting composition, are also disclosed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
