Process for the preparation of modified glycidyl isocyanurate resins
Abstract
Abstract THIS INVENTION RELATES TO A PROCESS OF PREPARATION OF SOFT, HARDENABLE EPOXIDE RESINS BASED ON TRIGLYCIDYL ISOCYANURATE WHICH, WHEN HARDENED, RETAIN THE DESIRED HIGH TEMPERATURE STABILITY WITH A GREATER FLEXIBILITY THAN HARDENED TRIGLYCIDYL ISOCYANURATE RESINS, AS WELL AS THE SOFT, HARDENABLE EPOXIDE RESINS PRODUCED. THIS PROCESS IS CHARACTERIZED BY REACTING A CRYSTALLINE TRIGLYCIDYL ISOCYANURATE HAVING AN EPOXIDE OXYGEN CONTENT OF AT LEAST 14% WITH AN ORGANIC ACID DERIVATIVE FREE OF THE EPOXIDE REACTING SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF ORGANIC MONOCARBOXYLIC ACIDS, ORGANIC DICARBOXYLIC ACIDS, AND ORGANIC MONOCARBOXYLIC ACID ANHYDRIDES, SAID ORGANIC ACID DERIVATIVE BEING PRESENT IN A RATIO TO PROVIDE FROM 1 TO 10 CARBOXYL GROUPS FOR EACH 30 EPOXIDE GROUPS IN THE MIXTURE AND RECOVERING A SOFT, HARDENABLE EPOXIDE RESIN.
Inventors
- 👤 E Weinrich
Bibliographic Details
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