JPS5648210A - Water-soluble anti-foaming agent - Google Patents
Water-soluble anti-foaming agentInfo
- Publication number
- JPS5648210A JPS5648210A JP12263679A JP12263679A JPS5648210A JP S5648210 A JPS5648210 A JP S5648210A JP 12263679 A JP12263679 A JP 12263679A JP 12263679 A JP12263679 A JP 12263679A JP S5648210 A JPS5648210 A JP S5648210A
- Authority
- JP
- Japan
- Prior art keywords
- water
- foaming agent
- soluble anti
- ethylene oxide
- higher alcohol
- 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.)
- Pending
Links
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
PURPOSE: A water-soluble anti-foaming agent of superior anti-foaming effect which is obtained by adding and reacting ethylene oxide and propylene oxide to and with the specific higher alcohol and esterifying these with the specific carboxylic acid.
CONSTITUTION: Ethylene oxide and propylene oxide are added and reacted to and with higher alcohol of 8W18 carbon numbers (for example, coconut oil alcohol or the like) in the presence of an alkali catalyst or acid catalyst. About lmol higher alcohol, about 5W50mol ethylene oxide and about 1W10mol propylene oxide are required. The terminal hydroxyl groups of the thus formed reactact is esterified by uni-W trivalent lower carboxylic acids of ≥6 carbon numbers (for example, formic acid, acetic acid, or the like), whereby the water-soluble anti-foaming agent of the formula is obtained. This antifoaming agent is used straightly or may be used in combination with other antifoaming agent. The amount of ddition is about 0.1W 0.001wt%.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12263679A JPS5648210A (en) | 1979-09-26 | 1979-09-26 | Water-soluble anti-foaming agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12263679A JPS5648210A (en) | 1979-09-26 | 1979-09-26 | Water-soluble anti-foaming agent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5648210A true JPS5648210A (en) | 1981-05-01 |
Family
ID=14840867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12263679A Pending JPS5648210A (en) | 1979-09-26 | 1979-09-26 | Water-soluble anti-foaming agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5648210A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5447822A (en) * | 1989-09-28 | 1995-09-05 | 3D Systems, Inc. | Apparatus and related method for forming a substantially flat stereolithographic working surface |
-
1979
- 1979-09-26 JP JP12263679A patent/JPS5648210A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5447822A (en) * | 1989-09-28 | 1995-09-05 | 3D Systems, Inc. | Apparatus and related method for forming a substantially flat stereolithographic working surface |
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