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Bayer AG
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Bayer AG
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Publication of ES262939A1publicationCriticalpatent/ES262939A1/es
Procedimiento para la fabricación de poliésteres en cadena de alto peso molecular, caracterizado porque se calientan carbonatos de diarilo con ácidos dicarboxílicos y combinaciones orgánicas dihidroxi o/y con ácidos hidroxicarboxílicos, o éster arílico del ácido bis-carbónico de combinaciones orgánicas dihidroxi con ácidos dicarboxílicos o/y ácidos omega-hidroxicarboxílicos, de preferencia en presencia de cantidades catalíticas de combinaciones alcalinas o alcalinotérreas.
ES0262939A1960-03-301960-12-02Procedimiento para la fabricacion de poliésteres en cadena de alto peso molecular
ExpiredES262939A1
(es)