化工社化工社 化学情報印刷レポート · 研究参考用
Ethylene Oxide → Urethane methyl methacrylate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethylene Oxide | HCID 6354 | — |
| 反応物 | Methyl Methacrylate | HCID 6658 | — |
| 反応物 | 2-Hydroxyethyl Methacrylate | HCID 13360 | — |
| 反応物 | Loperamide Hydrochloride | HCID 71420 | — |
| 反応物 | Di-n-butyldilauryltin | HCID 9809426 | — |
| 生成物 | Urethane methyl methacrylate | HCID 19038674 | — |
反応手順
A polyisocyanate having an average functionality of 2.6 (Suprasec (RTM) DND, ex ICI: 354 grams), a propoxylated glycerol end-capped with ethylene oxide and having a molecular weight of about 6000 (Daltocel (RTM) F2805, ex ICI; 240 grams), 2-hydroxyethyl methacrylate (338.5 grams) and methyl methacrylate (900.3 grams) were mixed and stirred under nitrogen. Dibutyl tin dilaurate (7 grams) was added with stirring and the reaction temperature rose to 70° C. After 2 hours the isocyanate concentration had fallen to below 2000 ppm. A mixture of an unsaturated urethane and methyl methacrylate, in approximately 1:1 weight ratio, was obtained as a brown liquid, (hereinafter referred to for convenience as Resin A).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05126396 |
| 出典データセット | uspto-grants-1992_06 |
| ORD ID | ord-053a28bc9ff34fd5ac682f754cf8334d |
| 出典メモ | uspto-grants-1992_06 |