Method for preparing poly(cyclohexane-1,4-dicarboxylate)s from cyclohexane-1,4-dicarboxylic acid, and composition

Brunelle, Dj; Berti, C.; Celli, Am; Colonna, M.; Fiorini, M.; Marianucci, E.; Messori, Massimo; Pilati, Francesco; Sisti, L.; Marchese, P.

Poly(1,4-cyclohexanedicarboxylate)s, esp. poly(1,4-cyclohexanedimethylene-1,4-cyclohexanedicarboxylate), are prepd. from at least one relatively non-volatile diol, such as 1,4-cyclohexanedimethanol, and cyclohexane-1,4-dicarboxylic acid by an esterification process in the presence of a catalyst, at a max. temp. of about 260°. In one embodiment the procedure employs a two-step process, the second of which may be performed in the melt or in the solid state. A volatile diol such as ethylene glycol may also be present. Thus, 1,4-cyclohexanedicarboxylic acid-1,4-cyclohexanedimethanol copolymer with Mw 3,500 and mn 1,400 was prepd. in the presence of tetrakis(2-ethylhexyl) titanate.

Method for preparing poly(cyclohexane-1,4-dicarboxylate)s from cyclohexane-1,4-dicarboxylic acid, and composition / Dj, Brunelle; C., Berti; Am, Celli; M., Colonna; M., Fiorini; E., Marianucci; Messori, Massimo; Pilati, Francesco; L., Sisti; P., Marchese. - .

Data di concessione:	2003
Titolo:	Method for preparing poly(cyclohexane-1,4-dicarboxylate)s from cyclohexane-1,4-dicarboxylic acid, and composition
Autore/i:	Dj, Brunelle; C., Berti; Am, Celli; M., Colonna; M., Fiorini; E., Marianucci; Messori, Massimo; Pilati, Francesco; L., Sisti; P., Marchese
Autore/i UNIMORE:	DJ BRUNELLE C. BERTI AM CELLI M. COLONNA M. FIORINI E. MARIANUCCI MESSORI, Massimo PILATI, Francesco L. SISTI P. MARCHESE mostra contributor esterni nascondi contributor esterni
Abstract:	Poly(1,4-cyclohexanedicarboxylate)s, esp. poly(1,4-cyclohexanedimethylene-1,4-cyclohexanedicarboxylate), are prepd. from at least one relatively non-volatile diol, such as 1,4-cyclohexanedimethanol, and cyclohexane-1,4-dicarboxylic acid by an esterification process in the presence of a catalyst, at a max. temp. of about 260°. In one embodiment the procedure employs a two-step process, the second of which may be performed in the melt or in the solid state. A volatile diol such as ethylene glycol may also be present. Thus, 1,4-cyclohexanedicarboxylic acid-1,4-cyclohexanedimethanol copolymer with Mw 3,500 and mn 1,400 was prepd. in the presence of tetrakis(2-ethylhexyl) titanate.
Handle:	http://hdl.handle.net/11380/308246
Enti collegati:	General Electric Company, USA
Rilevanza:	Internazionale
Numero di deposito:	US 2003232958
Tipologia	Brevetto

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