関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Ethylene carbonate | HCID 7303 | — |
| 触媒 | Sodium Stannate | HCID 21977542 | — |
| 生成物 | Carbon Dioxide | HCID 280 | 18.7% |
| 生成物 | Ethylene carbonate | HCID 7303 | 97.3% |
反応手順
A 10:1 mole ratio of ethylene carbonate to polyester poly (Formrex® 11-225, a hydroxyl functional diethylene glycol adipate, MW=500, manufactured by Witco) is heated with stirring under a nitrogen atmosphere for 3.5 hours at 175° C. using 0.5 percent sodium stannate trihydrate as catalyst to give 97.3 percent ethylene carbonate conversion to a poly(alkylene carbonate) polyol with 18.7 percent carbon dioxide. The catalyst was removed as in Example 1.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US04709069 |
|---|
| 出典データセット | uspto-grants-1987_11 |
|---|
| ORD ID | ord-ee50f29d4fd6404fa60c2a7c438397ec |
|---|
| 出典メモ | uspto-grants-1987_11 |
|---|
