| abstract |
PROCEDURE FOR OBTAINING COMPOSITIONS OF THERMOHARDENING RESINS. IT CONSISTS OF PUTTING IN CONTACT: A) A COMPOUND CONTAINING ACTIVE HYDROGEN SUCH AS POLYOL, POLYAMINE, AMINOALCOHOL, OR MIXTURES THEREOF. B) AN UNSATURATED CARBOXYLIC ANHYDRIC, AND C) AN ETHYLENECICALLY UNSTAURATED MONOMER. THE POLYOL HAS A MOLECULAR WEIGHT BETWEEN 60 AND 2000, CONTAINS FROM 3 TO 9 HYDROXYL GROUPS. THE UNSATURATED POLYOL IS AN ADDUCT OF UNSTAURATED MONOCARBOXYLIC ACIDS AND EPOXY RESINS. |