Hardenable compositions comprising epoxide compounds and cyclic ethers or thioethers

Claim 1

THE PORCESS FOR MAKING A HARDENABLE COMPOSITION, COMPRISING THE STEPS OF INTIMATELY MIXING (1) A 1:2EPOXIDE COMPOUND HAVING A 1:2-EPOXIDE EQUIVALENCY GREATER THAN 1 WITH (2) A TETRAHYDOFURANE SUBSTITUTED BY A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL, HYDROXYALKYL, CHLOROALKYL, ACETYL AND BENZOYL IN THE PRESENCE OF (3) A CATALYTIC AMOUNT OFF A MEMBER SELECTED FROM THE GROUP CONSISTING OF BORON TRIFLUORIDE, THE FLUOBORATES OF ZINC, TIN, LEAD, IRON, NICKEL, COPPER, COBALT, MAGNESIUM, CADMIUM, MERCURY, CALCIUM, STRONTIUM, BARIUM AND ALUMINUM, WITH THE PROVISO THAT WHEN BORON TRIFLUORIDE IS EMPLOYED, THERE IS ALSO EMPLOYED (4) A COMPLEX-FORMING COMPOUND CAPABLE OF FORMING A STABLE COMPLEX WITH BORON TRIFLUORIDE SELECTED FROM THE GROUP CONSISTING OF WATER, AMMONIA, ETHYLAMINE, ETHYLENEDIAMINE, MONO-ETHANOLAMINE, PIPERIDINE, TRIETHANOLAMINE, UREA, HEXAMETHYLENETETRAMINE, TRIMETHYLAMINE, PYRIDINE, ANILINE, TOLUIDINE AND SCHIFF''S BASES, ABOUT 0.2 TO ABOUT 3.0 PARTS BY WEIGHT OF THE COMPLEX-FORMING COMPOUND BEING EMPOLYED FOR EACH PART BY WEIGHT OF THE BORON TRIFLUORIDE, AND 5-50 PARTS BY WEIGHT OF (2) FOR EVERY 100 PARTS BY WEIGHT OF (1).