HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → Urea formaldehyde foam
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Urea | HCID 1176 | — |
| Reactant | Melamine | HCID 7955 | — |
| Reactant | 2-Methylidenebutanedioic acid--prop-2-enoic acid (1/1) | HCID 161509 | — |
| Reactant | Acrylic acid methacrylic acid | HCID 11600707 | — |
| Product | Urea formaldehyde foam | HCID 62705 | — |
| Product | Melamine formaldehyde | HCID 93374 | — |
| Product | Urea, polymer with formaldehyde and 1,3,5-triazine-2,4,6-triamine | HCID 168250 | — |
Reaction Steps
A process for manufacturing microcapsules by dissolving or dispersing microcapsule contents in an aqueous solution of acrylic acid-methacrylic acid copolymer and/or acrylic acid-itaconic acid copolymer, then polymerizing urea and/or melamine and formaldehyde in the solution or dispersion adjusted to pH 2.5~6.0, and forming film of urea-formaldehyde copolymer, melamine-formaldehyde copolymer, or urea-melamine-formaldehyde copolymer around capusle contents.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04753759 |
| Source dataset | uspto-grants-1988_06 |
| ORD ID | ord-06046585872b48da9c4ee7eeaea419bc |
| Source note | uspto-grants-1988_06 |