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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and CofiledCriticalEI Du Pont de Nemours and Co
Priority to ES0240383ApriorityCriticalpatent/ES240383A1/es
Publication of ES240383A1publicationCriticalpatent/ES240383A1/es
Polymers With Sulfur, Phosphorus Or Metals In The Main Chain
(AREA)
Abstract
Mejoras en estructuras modeladascaracterizadas por consistir o contener un polímero con la unidad estructural recurrente **(Ver fórmula)** en la que Ar1 y Ar2 son radicales aromáticos divalentes de igual o diferente composición y en la que los enlaces prolongadores de la cadena están ligados a átomos de carbono no adyacentes en un anillo aromático o sistema de anillosteniendo dichos polímeros una viscusidad inherente mínima de 06 y preferiblemente superior a 08en ácido sulfúrico concentrado a 30ºC.
ES0240383A1958-02-271958-02-27Mejoras en estruccturas moldeadas
ExpiredES240383A1
(es)