2,4-Imidazolidinedione, dimethyl-, polymer with formaldehyde 26811-08-5 34560-47-9 9065-13-8 DMHF Dimethyl hydantoin formaldehyde resin Dimethylhydantoin-formaldehyde resin Formaldehyde, polymer with 5,5-dimethyl-2,4-imidazolidinedione