HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethylene Glycol → Propylene Glycol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethylene Glycol | HCID 174 | — |
| Reactant | Maleic Acid | HCID 444266 | — |
| Reactant | HCID 21585049 | HCID 21585049 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | Propylene Glycol | HCID 1030 | — |
| Product | Phthalic Anhydride | HCID 6811 | — |
| Product | Maleic Anhydride | HCID 7923 | — |
| Product | HCID 21585049 | HCID 21585049 | — |
Reaction Steps
An unsaturated polyester is obtained from 1458 g of ethylene glycol, 798 g of 1,2-propylene glycol, 3012 g of trimethylolpropane diallylether, 3102 g of maleic acid anhydride, 521 g of phthalic acid anhydride, 55 g of methanol and 550 g of an ester of maleic acid and trimethylolpropane-diallylether by the conventional method of melt condensation. This unsaturated polyester is dissolved in styrene.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05015689 |
| Source dataset | uspto-grants-1991_05 |
| ORD ID | ord-8ed0a0fb5b2247f0a77d2fef5534beb8 |
| Source note | uspto-grants-1991_05 |