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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain 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 Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SAfiledCriticalCompagnie de Saint Gobain SA
Priority to ES0229987ApriorityCriticalpatent/ES229987A1/en
Publication of ES229987A1publicationCriticalpatent/ES229987A1/en
Process for manufacturing new artificial resins, characterized in that it consists of two phases, the first of which is to react at least two molecules of diglycidyl ether on a molecule of phthalic anhydride, heating the mixture to a temperature of about 125 degrees centigrade and maintaining this temperature for approximately two hours, until the total disappearance of the free anhydride in the precondensed mixture. (Machine-translation by Google Translate, not legally binding)
ES0229987A1956-07-261956-07-26Procedure for the manufacture of new artificial resins (Machine-translation by Google Translate, not legally binding)
ExpiredES229987A1
(en)
Procedure for the preparation of a new derivative of pirazolidine-hexametilenimina with therapeutic properties. (Machine-translation by Google Translate, not legally binding)