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.)
La Seda de Barcelona SA
Original Assignee
La Seda de Barcelona SA
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 La Seda de Barcelona SAfiledCriticalLa Seda de Barcelona SA
Priority to ES271069ApriorityCriticalpatent/ES271069A3/en
Publication of ES271069A3publicationCriticalpatent/ES271069A3/en
Process for the preparation of linear polyesters composed of carboxylic acids capable of forming polyesters and blocking substances of the alcoholic hydroxy groups, characterized in that a carboxylic acid anhydride is added to the reaction mixture before the polycondensation ends. (Machine-translation by Google Translate, not legally binding)
ES271069A1961-09-181961-09-18Procedure for the preparation of linear polyesters (Machine-translation by Google Translate, not legally binding)
ExpiredES271069A3
(en)