JPS6466193A - Production of fine particles of organosilicates - Google Patents
Production of fine particles of organosilicatesInfo
- Publication number
- JPS6466193A JPS6466193A JP22281587A JP22281587A JPS6466193A JP S6466193 A JPS6466193 A JP S6466193A JP 22281587 A JP22281587 A JP 22281587A JP 22281587 A JP22281587 A JP 22281587A JP S6466193 A JPS6466193 A JP S6466193A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- hydrolysis
- polymerization
- kept
- aqueous alkali
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To permit inexpensive production of the title compound, by adding an organochlorosilane to an aqueous alkali for hydrolysis, as the pH of the reaction mixture is kept so that the polymerization may not take place, then pouring acid in portions for neutralization to effect polymerization and precipitation so that the content of organic groups are controlled. CONSTITUTION:An aqueous alkali such as aqueous sodium hydroxide is kept at 60-65 deg.C and added to an organochlorosiloxane such as methyl trichlorosilane, etc., as the pH is kept over 10 so that polymerization may not take place, to effect hydrolysis. Then, an acid such as sulfuric acid is added in portions to the reaction mixture to effect neutralization so that the organosilicic acid is polymerized and precipitated whereby the subject fine particles of organosilicic acid is obtained. The amount of the aqueous alkali is preferably more than the equivalent one for neutralizing the hydrogen chloride generated by hydrolysis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22281587A JPH0627194B2 (en) | 1987-09-05 | 1987-09-05 | Method for producing fine organosilicic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22281587A JPH0627194B2 (en) | 1987-09-05 | 1987-09-05 | Method for producing fine organosilicic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6466193A true JPS6466193A (en) | 1989-03-13 |
JPH0627194B2 JPH0627194B2 (en) | 1994-04-13 |
Family
ID=16788342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22281587A Expired - Fee Related JPH0627194B2 (en) | 1987-09-05 | 1987-09-05 | Method for producing fine organosilicic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0627194B2 (en) |
-
1987
- 1987-09-05 JP JP22281587A patent/JPH0627194B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0627194B2 (en) | 1994-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |