JPS54119372A - Preparation of microcapsule - Google Patents
Preparation of microcapsuleInfo
- Publication number
- JPS54119372A JPS54119372A JP2689478A JP2689478A JPS54119372A JP S54119372 A JPS54119372 A JP S54119372A JP 2689478 A JP2689478 A JP 2689478A JP 2689478 A JP2689478 A JP 2689478A JP S54119372 A JPS54119372 A JP S54119372A
- Authority
- JP
- Japan
- Prior art keywords
- high molecular
- cpd
- soln
- molecular cpd
- order
- 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
Landscapes
- Manufacturing Of Micro-Capsules (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
PURPOSE:To prepare microcapsules excellent in mechamical strength without impairing the physiological and chemical activity of a core material, by introducing a photosensitive hydrophobic group into a hydrophilic high molecular cpd. used as a capsule-forming polymer in order to photo-crosslink without using a crosslinking agent. CONSTITUTION:A photo-crosslinkable high molecular cpd. made by introducing a hydrophobic photosensitive group 9 (e.g., cinnamoyl group) into a hydrophilic high molecular base material such as PVA etc. is dissolved in a nonaqueous org. solvent (e.g., CHCl3). The conc. of the high molecular cpd. lies in the range 0.1- 3 wt.%, pref., 0.15-1.5 wt.%. To the soln. of the high molecular cpd. is added core material which is to be coated with capsules (e.g., pharmaceuticals, agricultural chemicals, chemicals), then the soln. is added to water or aq. soln. of emulsifying agent, and is stirred violently in order to emulsity it. The emulsion is irradiated with light in order to crosslink the high molecular cpd. through the photosensitive group so as to produce core-material-enveloping microcapsule which has been formed from high molecular cpd. with photocrosslinked shell.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53026894A JPS5815173B2 (en) | 1978-03-09 | 1978-03-09 | How to prepare microcapsules |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53026894A JPS5815173B2 (en) | 1978-03-09 | 1978-03-09 | How to prepare microcapsules |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54119372A true JPS54119372A (en) | 1979-09-17 |
JPS5815173B2 JPS5815173B2 (en) | 1983-03-24 |
Family
ID=12205946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53026894A Expired JPS5815173B2 (en) | 1978-03-09 | 1978-03-09 | How to prepare microcapsules |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5815173B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018003627A1 (en) * | 2016-06-30 | 2018-01-04 | 日本合成化学工業株式会社 | Agricultural composition, granules and sustained release granules |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4953569A (en) * | 1972-07-31 | 1974-05-24 | ||
JPS528271A (en) * | 1975-07-09 | 1977-01-21 | Hitachi Ltd | Damper |
JPS5228475A (en) * | 1975-08-29 | 1977-03-03 | Fuji Photo Film Co Ltd | Process for production of capsules |
JPS5243779A (en) * | 1975-10-03 | 1977-04-06 | Hideki Ishii | Method of producing minute particles coated with resin |
-
1978
- 1978-03-09 JP JP53026894A patent/JPS5815173B2/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4953569A (en) * | 1972-07-31 | 1974-05-24 | ||
JPS528271A (en) * | 1975-07-09 | 1977-01-21 | Hitachi Ltd | Damper |
JPS5228475A (en) * | 1975-08-29 | 1977-03-03 | Fuji Photo Film Co Ltd | Process for production of capsules |
JPS5243779A (en) * | 1975-10-03 | 1977-04-06 | Hideki Ishii | Method of producing minute particles coated with resin |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018003627A1 (en) * | 2016-06-30 | 2018-01-04 | 日本合成化学工業株式会社 | Agricultural composition, granules and sustained release granules |
JPWO2018003627A1 (en) * | 2016-06-30 | 2019-04-18 | 日本合成化学工業株式会社 | Agricultural composition, granules and controlled release granules |
Also Published As
Publication number | Publication date |
---|---|
JPS5815173B2 (en) | 1983-03-24 |
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