HuagongsheHuagongshe Chemistry Print Report · For research reference only
DMDM hydantoin → Formaldehyde
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | DMDM hydantoin | HCID 22947 | — |
| Reactant | 1-(Hydroxymethyl)-5,5-dimethylhydantoin | HCID 67000 | — |
| Product | Formaldehyde | HCID 712 | — |
| Product | Dimethylhydantoin | HCID 6491 | — |
Reaction Steps
In a further embodiment (the post addition method), an aqueous solution of dimethyloldimethylhydantoin, monomethyloldimethylhydantoin, and dimethylhydantoin is produced by admixing (a) from about 80 to about 90% by weight of an aqueous solution of methylolated dimethylhydantoins having greater than 0.1% by weight of free formaldehyde with (b) about 20 to about 10% by weight of dimethylhydantoin based upon 100% by weight of aqueous solution of methylolated dimethylhydantoins and dimethylhydantoin combined.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05405862 |
| Source dataset | uspto-grants-1995_04 |
| ORD ID | ord-10971a8a4b614106bf9b834b88f8f8fd |
| Source note | uspto-grants-1995_04 |