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[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]참가 물질
실험 절차
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.
후처리
- addition1.5 mols, mixed
- customThe unreacted silicic acid is removed by filtration
- customAbout 15% to 25% of the said silicic acid did not chemically react
- temperatureis heated to 70° to 110° C. for 20 to 80 minutes
- customuntil the desired viscosity is obtained
출처 및 근거
- ORD 기록
- ord-9b992370b4a7477dae71121b17d91fff
- 출처 데이터셋
- uspto-grants-1979_10
- 특허 번호
- US04169930
연결된 노트
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