RU99123179A - CAPSULATION METHOD AND CAPSULATED PRODUCTS - Google Patents
CAPSULATION METHOD AND CAPSULATED PRODUCTSInfo
- Publication number
- RU99123179A RU99123179A RU99123179/04A RU99123179A RU99123179A RU 99123179 A RU99123179 A RU 99123179A RU 99123179/04 A RU99123179/04 A RU 99123179/04A RU 99123179 A RU99123179 A RU 99123179A RU 99123179 A RU99123179 A RU 99123179A
- Authority
- RU
- Russia
- Prior art keywords
- substance
- water
- encapsulated
- polyurea
- shell
- Prior art date
Links
- 239000000126 substance Substances 0.000 claims 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 7
- 239000006185 dispersion Substances 0.000 claims 5
- 239000003094 microcapsule Substances 0.000 claims 4
- 229920000162 poly(ureaurethane) Polymers 0.000 claims 4
- 229920002635 polyurethane Polymers 0.000 claims 4
- 239000004814 polyurethane Substances 0.000 claims 4
- 150000003512 tertiary amines Chemical class 0.000 claims 4
- 229920001228 Polyisocyanate Polymers 0.000 claims 3
- 241000607479 Yersinia pestis Species 0.000 claims 3
- 239000008346 aqueous phase Substances 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 3
- 239000003016 pheromone Substances 0.000 claims 3
- 239000005056 polyisocyanate Substances 0.000 claims 3
- 239000004094 surface-active agent Substances 0.000 claims 3
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 claims 2
- 229920002396 Polyurea Polymers 0.000 claims 2
- 239000002775 capsule Substances 0.000 claims 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 239000003960 organic solvent Substances 0.000 claims 2
- ZMANZCXQSJIPKH-UHFFFAOYSA-N triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N Toluene diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims 1
- GHHBMLHLWFGKHZ-UHFFFAOYSA-N [N-]=C=O.[N-]=C=O.CC1=CC(=O)CC(C)(C)C1 Chemical compound [N-]=C=O.[N-]=C=O.CC1=CC(=O)CC(C)(C)C1 GHHBMLHLWFGKHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000001299 aldehydes Chemical class 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 125000000524 functional group Chemical group 0.000 claims 1
- 238000003898 horticulture Methods 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 125000004433 nitrogen atoms Chemical group N* 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 125000004430 oxygen atoms Chemical group O* 0.000 claims 1
- -1 poly (ethyleneoxy) nonylphenol Polymers 0.000 claims 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims 1
- 150000003141 primary amines Chemical class 0.000 claims 1
- 150000003335 secondary amines Chemical class 0.000 claims 1
- 238000009331 sowing Methods 0.000 claims 1
- 230000004083 survival Effects 0.000 claims 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 claims 1
Claims (17)
а) обеспечение водной фазы, содержащей поверхностно-активное вещество;
б) диспергирование в указанной водной фазе органического растворителя, не смешивающегося с водой, в котором растворены или диспергированы подлежащее капсулированию вещество, частично смешивающееся с водой, и полиизоцианат для образования дисперсии капель органического растворителя в непрерывной водной фазе;
в) добавление водорастворимого третичного амина к дисперсии;
г) последующее добавление к дисперсии полифункционального соединения, содержащего функциональные группы, отобранные из ряда, состоящего из первичных аминных, вторичных аминных и гидроксильных групп, в результате чего образуются дискретные капсулы, состоящие из вещества, заключенного в оболочку из полимочевины или полиуретана.1. A method of encapsulating a partially miscible organic substance in a shell of polyurea or polyurethane, including:
a) providing an aqueous phase containing a surfactant;
b) dispersing in the indicated aqueous phase an organic solvent which is not miscible with water, in which the substance to be encapsulated, partially miscible with water, and a polyisocyanate are dissolved or dispersed to form a dispersion of droplets of the organic solvent in the continuous aqueous phase;
c) adding a water-soluble tertiary amine to the dispersion;
d) the subsequent addition to the dispersion of a multifunctional compound containing functional groups selected from the series consisting of primary amine, secondary amine and hydroxyl groups, resulting in the formation of discrete capsules consisting of a substance enclosed in a polyurea or polyurethane shell.
где n составляет от 2 до 4.10. The method according to claim 8, characterized in that the polymethylene polyphenyl isocyanate has the formula
where n is from 2 to 4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/834,937 | 1997-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
RU99123179A true RU99123179A (en) | 2001-09-27 |
Family
ID=
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