Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethylene carbonate | HCID 7303 | — |
| Catalyst | Sodium Stannate | HCID 21977542 | — |
| Product | Carbon Dioxide | HCID 280 | 18.7% |
| Product | Ethylene carbonate | HCID 7303 | 97.3% |
Reaction Steps
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.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US04709069 |
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| Source dataset | uspto-grants-1987_11 |
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| ORD ID | ord-ee50f29d4fd6404fa60c2a7c438397ec |
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| Source note | uspto-grants-1987_11 |
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