ECSP972128A - MICROENCAPSULATED COMPOSITIONS - Google Patents
MICROENCAPSULATED COMPOSITIONSInfo
- Publication number
- ECSP972128A ECSP972128A ECSP972128A ECSP972128A EC SP972128 A ECSP972128 A EC SP972128A EC SP972128 A ECSP972128 A EC SP972128A EC SP972128 A ECSP972128 A EC SP972128A
- Authority
- EC
- Ecuador
- Prior art keywords
- polyurea
- microcapsules
- polyisocyanate
- diisocyanate
- compositions
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title abstract 3
- 229920002396 Polyurea Polymers 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000003094 microcapsule Substances 0.000 abstract 2
- 229920001228 polyisocyanate Polymers 0.000 abstract 2
- 239000005056 polyisocyanate Substances 0.000 abstract 2
- 238000012695 Interfacial polymerization Methods 0.000 abstract 1
- 239000004480 active ingredient Substances 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 230000004071 biological effect Effects 0.000 abstract 1
- 125000005442 diisocyanate group Chemical group 0.000 abstract 1
- 239000004495 emulsifiable concentrate Substances 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 abstract 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract 1
- 150000002513 isocyanates Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000000361 pesticidal effect Effects 0.000 abstract 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Microencpsuladas de poliúrea particularmente útiles para aplicación foliar son preparadas por un proceso de polimerización interfacial en que la poliúrea es formada desde un diisocianato aromático y opcionalmente un poliisocianato aromático que tiene 3 o mas grupos isocianatos, en una relación de pesos (cuando ambos tipos de isocianatos esta presente) de poliisocianato: diisocianato de aproximadamente 1:100 a aproximadamente 1:1,5 en que las microcápsulas son producidas teniendo un tamaño de partícula promedio desde aproximadamente 1 a 5 micrones. Como se compara con el liquido convencional (por ej. concentrado emulsificable) composiciones pesticidas, las microcapsulas pueden proveer un manejo mas seguro y una carga más alta de ingredientes activos. mientras que la actividad biológica es sustancialmente equivalente a la de las composiciones líquidas.Particularly useful polyurea microencapsules for foliar application are prepared by an interfacial polymerization process in which the polyurea is formed from an aromatic diisocyanate and optionally an aromatic polyisocyanate having 3 or more isocyanate groups, in a weight ratio (when both types of isocyanates is present) from about 1: 100 to about 1: 1.5 polyisocyanate: diisocyanate in which the microcapsules are produced having an average particle size from about 1 to 5 microns. As compared to conventional liquid (eg emulsifiable concentrate) pesticidal compositions, microcapsules can provide safer handling and a higher load of active ingredients. while the biological activity is substantially equivalent to that of the liquid compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ECSP972128 ECSP972128A (en) | 1997-05-22 | 1997-05-22 | MICROENCAPSULATED COMPOSITIONS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ECSP972128 ECSP972128A (en) | 1997-05-22 | 1997-05-22 | MICROENCAPSULATED COMPOSITIONS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ECSP972128A true ECSP972128A (en) | 1998-07-23 |
Family
ID=42042959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ECSP972128 ECSP972128A (en) | 1997-05-22 | 1997-05-22 | MICROENCAPSULATED COMPOSITIONS |
Country Status (1)
| Country | Link |
|---|---|
| EC (1) | ECSP972128A (en) |
-
1997
- 1997-05-22 EC ECSP972128 patent/ECSP972128A/en unknown
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