HuagongsheHuagongshe Chemistry Print Report · For research reference only
4,4-Diaminodiphenylmethane → 2,6-Naphthalenedicarboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4,4-Diaminodiphenylmethane | HCID 7577 | — |
| Reactant | Dimethyl terephthalate | HCID 8441 | — |
| Reactant | 1,3,5-Tris(2-hydroxyethyl) isocyanurate | HCID 13286 | — |
| Reactant | Dimethyl-2,6-naphthalenedicarboxylate | HCID 61225 | — |
| Solvent | Ethylene Glycol | HCID 174 | — |
| Solvent | O-Cresol | HCID 335 | — |
| Product | 2,6-Naphthalenedicarboxylic acid | HCID 14357 | — |
Reaction Steps
72.9 g of ethylene glycol, 192.2 g of THEIC, 83.3 g of dimethyl terephthalate, 104.4 g of dimethyl 2,6-naphthalenedicarboxylate, 220.1 g of trimellitic anhydride, 112.0 g of 4,4'-diaminodiphenylmethane and 0.7 g of tetra-n-butyl titanate are heated at 200° C. to prepare a polyesterimide resin. 96.8 g of distillate are obtained. At 200° C., the batch is diluted with 808.5 g of cresol. The cooled cresolic solution is diluted with 288.5 g of solvent naphtha and catalysed with 11.4 g of cresyl titanate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05854334 |
| Source dataset | uspto-grants-1998_12 |
| ORD ID | ord-d8afe60cb70f47e2b262902aa68a8235 |
| Source note | uspto-grants-1998_12 |