A batch process for esterifying ethylene glycol and terephthalic acid at elevated temperature and pressure in which a part of the ethylene glycol required for the complete esterification reaction is placed in an autoclave and heated under pressure, and the remainder of the glycol is added to said heated...http://www.google.es/patents/US4077945?utm_source=gb-gplus-sharePatente US4077945 - Process for making linear polyesters from ethylene glycol and terephthalic acid
Process for making linear polyesters from ethylene glycol and terephthalic acid
