関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Formaldehyde | HCID 712 | — |
| 反応物 | Sulfuric Acid | HCID 1118 | — |
| 反応物 | Urea | HCID 1176 | — |
| 反応物 | Triethanolamine | HCID 7618 | — |
| 反応物 | Crl-8131 | HCID 24751 | — |
| 反応物 | Sorbitan mono-(9Z)-9-octadecenoate | HCID 9920342 | — |
| 反応物 | Span #80 (Sorbitan monooleate) | HCID 70693544 | — |
| 反応物 | HCID 178435162 | HCID 178435162 | — |
| 触媒 | Titanium oxide (Ti3O) | HCID 162651 | — |
| 溶媒 | Water | HCID 962 | — |
| 溶媒 | O-Xylene | HCID 7237 | — |
| 生成物 | Crl-8131 | HCID 24751 | — |
| 生成物 | Urea formaldehyde foam | HCID 62705 | — |
反応手順
A urea-formaldehyde prepolymer solution is prepared by heating an aqueous solution of two-hundred-twenty grams of 37% formaldehyde and eighty-two grams of urea, adjusted to pH 8 with triethanolamine, at 70° C. for one hour. Fifty grams of this prepolymer solution are mixed with thirty grams of a 50% by weight dispersion of titanium dioxide in distilled water, and adjusted to pH 6 with dilute sulfuric acid. The aqueous dispersion is emulsified in a solution of six grams of Pluronic L 122, three grams of sorbitan monooleate (commercially available as Span 80 from ICI America) and 1.5 grams of a poly(oxyethylene)-poly(oxypropylene) block copolymer with 30% poly(oxyethylene) and a molecular weight of about 2500 (commercially available as Pluronic L 63) in one-hundred grams of xylene to yield a water-in-oil emulsion. This is treated with four milliliters of a 50% by weight solution of monobutyl acid phosphate in toluene and stirred for two hours.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US04239646 |
|---|
| 出典データセット | uspto-grants-1980_12 |
|---|
| ORD ID | ord-641969b020ba4feb8f6ebc2973e1599a |
|---|
| 出典メモ | uspto-grants-1980_12 |
|---|
