JPS57209918A - Production of solid urea resin - Google Patents
Production of solid urea resinInfo
- Publication number
- JPS57209918A JPS57209918A JP9552681A JP9552681A JPS57209918A JP S57209918 A JPS57209918 A JP S57209918A JP 9552681 A JP9552681 A JP 9552681A JP 9552681 A JP9552681 A JP 9552681A JP S57209918 A JPS57209918 A JP S57209918A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- reaction
- vacuum
- urea
- formaldehyde
- 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
- Compositions Of Macromolecular Compounds (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
PURPOSE: To produce the titled fine resin in good yields within a short time, by reacting urea with a formaldehyde in a reaction system having a specified water content, adding a silicone.glycol copolymer and zinc stearate before the completion of the reaction and then vacuum-dehydrating the reaction mixture.
CONSTITUTION: A reaction system is set at a water content of 13W25wt%. In this state, urea and a formaldehyde are reacted and, just before the completion of the reaction, a silicone.glycol copolymer and zinc stearate are added. Because the solid urea resin obtained by the subsequent vacuum-dehydration and drying is in the form like that obtained when it contains a releasing agent in the particles, the amount of the resin adhering to the vacuum drier is decreased and, therefore, the yield is improved. Moreover, because the formation of the secondary agglomerates after grinding is decreased and the resin can be obtained in the form of extremely fine particles, the drying time is shortened and, accordingly, the production time is shortened.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9552681A JPS57209918A (en) | 1981-06-19 | 1981-06-19 | Production of solid urea resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9552681A JPS57209918A (en) | 1981-06-19 | 1981-06-19 | Production of solid urea resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57209918A true JPS57209918A (en) | 1982-12-23 |
Family
ID=14139991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9552681A Pending JPS57209918A (en) | 1981-06-19 | 1981-06-19 | Production of solid urea resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57209918A (en) |
-
1981
- 1981-06-19 JP JP9552681A patent/JPS57209918A/en active Pending
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