| abstract |
CURABLE COMPOSITIONS COMPRISES AN EPOXIDE RESIN AND A COMPLEX OF FORMULA BCL3.NR4R5R6 WHERE R4, R5 AND R6 TOGETHER WITH THE NITROGEN ATOM FORM A HETEROCYCLIC RING, OR R4 AND R5 BOTH REPRESENT METHYL GROUPS AND R6 DENOTES AN ALKYL OR ARALKYL GROUP OF AT LEAST 6 AND AT MOST 18 CARBON ATOMS. PREFFERED COMPOSITIONS CONTAIN COMPLEXES IN WHICH NR4R5R6 DENOTES PYRIDINE, AND THOSE IN WHICH R6 DENOTES AN ALKYL HYDROCARBON GROUP OF 6-18 CARBON ATOMS OR A BENZYL GROUP. THE COMPLEXES ACT AS LATENT HARDNESS. |