Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phenol | HCID 996 | — |
| Reactant | Anisole | HCID 7519 | — |
| Reactant | Trimellitic anhydride | HCID 11089 | — |
| Product | Adipic Acid | HCID 196 | 59.2% |
Reaction Steps
A solution is formed by mixing 60.0 grams of trimellitic acid anhydride and 135.0 grams of p,p'diphenyl methane diisocyanate and 110.0 grams of Anisole and 4.8 grams of phenol by heating the mixture. At approximately 170°C. a clear, homogeneous solution is obtained. Once clarity is obtained 27.0 grams of adipic acid are added slowly. The temperature of the mixture is raised to approximately 170°C. and slow reflux is maintained. After approximately 120 minutes, a yellow viscous resin is obtained and 55.5 grams of cumene and 346.5 grams of phenol are added to quench and stop the reaction. The solution is maintained at 130°C. until all the resin is dissolved. The resultant solution is cooled to room temperature and filtered. The viscosity of the product at 25°C. was measured at about 1200 cps, utilizing a Brookfield viscometer, and a resin solution of approximately 30% weight resin.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US03937673 |
|---|
| Source dataset | uspto-grants-1976_02 |
|---|
| ORD ID | ord-d541f214b8c94fbd82184e034d9e8bf4 |
|---|
| Source note | uspto-grants-1976_02 |
|---|
