HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → Urea
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Urea | HCID 1176 | — |
| Solvent | Water | HCID 962 | — |
| Product | Urea | HCID 1176 | — |
| Product | Urea formaldehyde foam | HCID 62705 | — |
Reaction Steps
Separately, 57.0 g of urea and 138.1 g of formalin (37%-aqueous solution adjusted to pH 8.0 with 20%-triethanolamine aqueous solution) were mixed under stirring together with 85.4 g of water and allowed to react each other for 60 min. at 70° C. to form a urea resin prepolymer (formaldehyde/urea=1.8 (by mol)) liquid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07718572B2 |
| Source dataset | uspto-grants-2010_05 |
| ORD ID | ord-4de1468ec50e48d89b0dd03f16f1b810 |
| Source note | uspto-grants-2010_05 |