5,5-dimethyl-1,3-bis(oxiran-2-ylmethyl)imidazolidine-2,4-dione

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Adipic acid (73 g) is added in portions with stirring to N,N'-diglycidyl-5,5-dimethylhydantoin (8.04 epoxide equiv./kg, 200 g) containing N-phenylimidazole (0.4 g), the temperature is kept at 100° C. and the addition is carried out over 40 minutes. The heating is maintained at 100° C. for a further 41/3 hours by which time the epoxide content has fallen to 2.35 equiv./kg. is kept at 100° C. the addition

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N,N'-Diglycidyl-5,5-dimethylhydantoin (8.04 epoxide equiv./kg, 100 g), a diglycidyl ether of a polyoxypropylene glycol of average molecular weight 425 (3.07 epoxide equiv./kg, 200 g), bisphenol A diglycidyl ether (5.30 epoxide equiv./kg, 100 g), bisphenol A (100 g) and N-phenylimidazole (0.4 g) are stirred at 120° C. for 31/2 hours, by which time the epoxide content of the mixture is 2.67 epoxide equiv./kg.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Adipic acid (73 g) is added in portions with stirring to N,N'-diglycidyl-5,5-dimethylhydantoin (8.04 epoxide equiv./kg, 200 g) containing N-phenylimidazole (0.4 g), the temperature is kept at 100° C. and the addition is carried out over 40 minutes. The heating is maintained at 100° C. for a further 41/3 hours by which time the epoxide content has fallen to 2.35 equiv./kg. is kept at 100° C. the addition

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N,N'-Diglycidyl-5,5-dimethylhydantoin (8.04 epoxide equiv./kg, 100 g), a diglycidyl ether of a polyoxypropylene glycol of average molecular weight 425 (3.07 epoxide equiv./kg, 200 g), bisphenol A diglycidyl ether (5.30 epoxide equiv./kg, 100 g), bisphenol A (100 g) and N-phenylimidazole (0.4 g) are stirred at 120° C. for 31/2 hours, by which time the epoxide content of the mixture is 2.67 epoxide equiv./kg.