Epoxide resin process

Claim 1

A PROCESS FOR PREPARING HEAT STABLE EPOXIDE CONTAINING COMPOSITIONS WHICH COMPRISES REACTING AT A TEMPERATURE OF ABOUT 50*C. TO ABOUT 150*C. A FIRST 1,2 EPOXIDE RESIN WITH A DIHYDRIC PHENOL IN THE RATIO OF ONE EQUIVALENT OF EPOXIDE GROUP OF THE FIRST EPOXIDE RESIN TO LESS THAN ONE EQUIVALENT OF PHENOLIC HYDROXYL OF THE DIHYDRIC PHENOL IN ADMIXTURE WITH AN AMINE CATALYST HAVING THE FORMULA R1-N(-R3)-R2 WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HYDROCARBON GROUPS CONTAINING 1 TO 22 CARBON ATOMS HAVING A METHYLENE GROUP ADJACENT TO THE NITROGEN ATOM AND BEING FREE FROM GROUPS REACTIVE WITH EPOXIDE GROUPS, AND HYDROCARBON GROUPS CONTAINING 2 TO 10 CARBON ATOMS HAVING AN ETHYLENE GROUP ADJACENT TO THE NITROGEN ATOM AND CONTAINING A HYDROXYL GROUP ON THE CARBON ATOM BETA TO THE NITROGEN ATOM AND BEING FREE FROM OTHER GROUPS REACTIVE WITH EPOXIDE GROUPS AND WHEREIN R2 IS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON GROUPS CONTAINING 1 TO 22 CARBON ATOMS HAVING A METHYLENE GROUP ADJACENT TO THE NITROGEN ATOM AND BEING FREE FROM GROUPS REACTIVE WITH EPOXIDE GROUPS, AND HYDROGEN GROUPS CONTAINING 2 TO 10 CARBON ATOMS HAVING AN ETHYLENE GROUP ADJACENT TO THE NITROGEN ATOM AND CONTAINING A HYDROXYL GROUP ON THE CARBON ATOM BETA TO THE NITROGEN ATOM AND BEING FREE FROM OTHER GROUPS REACTIVE WITH EPOXIDE GROUPS, THE RATIO OF AMINE CATALYST TO EACH EPOXIDE EQUIVALENT OF THE FIRST EPOXIDE RESIN BEING ABOUT 0.001 TO ABOUT 0.05 MOL OF AMINE HAVING AT LEAST TWO NITROGEN ATOM CONSTITUENTS SELECTED FROM AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND A HYDROCARBON SUBSTITUENT HAVING A HYDROXYL GROUP ON THE CARBON ATOM BETA TO THE NITROGEN ATOM AND ABOUT 0.001 TO ABOUT 0.005 MOL. OF AMINE HAVING NO MORE THAN ONE NITROGEN ATOM SUBSTITUENT SELETED FROM THE GROUP CONSISTING OF HYDROGEN AND A HYDROCARBON SUBSTITUENT HAVING A HYDROXYL GROUP ON THE CARBON ATOM BETA TO THE NITROGEN ATOM TO FORM A SECOND 1.2 EPOXIDE RESIN WHEREIN THE MOLECULAR WEIGHT OF SAID SECOND EPOXIDE RESIN IS INCREASED BY A FACTOR OF ABOUT 0.4 TO ABOUT 15 OVER THE MOLECULAR WEIGHT OF SAID FIRST EPOXIDE RESIN.