Formaldehyde → Formaldehyde urea silicate

HRID 258521

反応式

HRID 258521 の反応式
[Si:1]([OH:5])([OH:4])([OH:3])[OH:2].[NH2:6][C:7]([NH2:9])=[O:8].C=O.N[C:13](N)=[O:14].S(=O)(=O)(O)O>>[Si:1]([OH:5])([OH:4])([OH:3])[OH:2].[NH2:6][C:7]([NH2:9])=[O:8].[CH2:13]=[O:14]

参加物

5

反応物 4

HCID 712Formaldehyde2 回HCID 1118Sulfuric AcidHCID 1176UreaHCID 86734903Urea silicate3 回

生成物 1

HCID 86734902Formaldehyde urea silicate

実験手順

The said urea silicate is added to an aqueous solution of formaldehyde in the ratio of 1:1.5 mols, mixed, and the urea silicate goes into solution. The unreacted silicic acid is removed by filtration. About 15% to 25% of the said silicic acid did not chemically react with said urea. To the clear aqueous solution of urea silicate and formaldehyde is added a dilute solution of sulfuric acid until the pH is 4 to 5, then said solution is heated to 70° to 110° C. for 20 to 80 minutes, until the desired viscosity is obtained, thereby producing poly (formaldehyde urea silicate) resin, which is clear in color and may be produced as a thick liquid or as a solid. The said solid resin may be heated to 70° to 80° C. and molded into useful objects.

後処理

  1. addition1.5 mols, mixed
  2. customThe unreacted silicic acid is removed by filtration
  3. customAbout 15% to 25% of the said silicic acid did not chemically react
  4. temperatureis heated to 70° to 110° C. for 20 to 80 minutes
  5. customuntil the desired viscosity is obtained

出典と根拠

ORDレコード
ord-5b3dde485409449bbb73e13a53eee45f
出典データセット
uspto-grants-1977_07
特許番号
US04033935

関連ノート

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