Formaldehyde → Formaldehyde melamine silicate

HRID 258530

反応式

HRID 258530 の反応式
[Si:1]([OH:5])([OH:4])([OH:3])[OH:2].[N:6]1[C:13]([NH2:14])=[N:12][C:10]([NH2:11])=[N:9][C:7]=1[NH2:8].[CH2:15]=[O:16].S(=O)(=O)(O)O>>[Si:1]([OH:5])([OH:4])([OH:3])[OH:2].[N:6]1[C:13]([NH2:14])=[N:12][C:10]([NH2:11])=[N:9][C:7]=1[NH2:8].[CH2:15]=[O:16]

参加物

4

実験手順

The said melamine silicate as produced in Example VII is added to about 2 mols of formaldehyde in an aqueous solution and dilute sulfuric acid is added until the pH is 4 to 5.5, then heated to 70° to 100° , while agitating, for 15 to 60 minutes, thereby producing a white, solid resin, poly (formaldehyde melamine silicate). The said resin is not soluble in acetic acid and is resistent to strong acids and alkalis. On heating, the said resin softens very little and is destroyed before it will melt.

後処理

  1. additionis added until the pH is 4 to 5.5
  2. temperatureheated to 70° to 100°

出典と根拠

ORDレコード
ord-32daf0e4646d47c6af7b5c1bd78bd847
出典データセット
uspto-grants-1977_07
特許番号
US04033935

関連ノート

読み込み中…