Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beazer East Inc
Original Assignee
Koppers Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koppers Co IncfiledCriticalKoppers Co Inc
Priority to ES0246456ApriorityCriticalpatent/ES246456A1/es
Publication of ES246456A1publicationCriticalpatent/ES246456A1/es
Método para la producción de una resina de fenol-aldehido dotada de un punto de suavización deseadoque consiste en condensar un fenol monohídrico con un aldehidoquitar de dicha resina la materia volátil y agregar luego un aldehido a dicha resina a una tasa tal que la tasa de adición no exceda de la tasa de la reacciónhasta obtenerse una sustancia que tiene un punto de suavización deseado.
ES0246456A1959-01-121959-01-12Un metodo para la producciën de una resina de fenol-aldehido dotado de un punto de suavizaciën deseado
ExpiredES246456A1
(es)