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1. WO1996003041 - SPHERICAL MICROPARTICLES HAVING AN INNER WAX COATING DEPOSITED AROUND BIOLOGICALLY ACTIVE COMPOUNDS

Publication Number WO/1996/003041
Publication Date 08.02.1996
International Application No. PCT/EP1995/002729
International Filing Date 12.07.1995
Chapter 2 Demand Filed 09.01.1996
IPC
A01N 25/28 2006.01
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
25Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
26in coated particulate form
28Microcapsules
CPC
A01N 25/28
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES
25Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, ; e.g. seed treatment or sequential application;
26in coated particulate form
28Microcapsules ; or nanocapsules
Applicants
  • CIBA-GEIGY AG [CH/CH]; Klybeckstrasse 141 CH-4002 Basle, CH (AllExceptUS)
  • NASTKE, Rudolf [DE/DE]; DE (UsOnly)
  • NEUENSCHWANDER, Ernst [CH/CH]; CH (UsOnly)
Inventors
  • NASTKE, Rudolf; DE
  • NEUENSCHWANDER, Ernst; CH
Common Representative
  • CIBA-GEIGY AG; Patentabteilung Klybeckstrasse 141 CH-4002 Basle, CH
Priority Data
2330/94-022.07.1994CH
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SPHERICAL MICROPARTICLES HAVING AN INNER WAX COATING DEPOSITED AROUND BIOLOGICALLY ACTIVE COMPOUNDS
(FR) MICROPARTICULES SPHERIQUES POURVUES D'UN REVETEMENT DE CIRE INTERIEUR DEPOSE AUTOUR DE COMPOSES BIOLOGIQUEMENT ACTIFS
Abstract
(EN)
The invention relates to essentially spherical microparticles comprising a biologically active compound as core substance and a polymeric capsule material, wherein a hydrophobic wax forms a wax film as interlayer on the inner polymeric capsule wall and wholly or partially encapsulates the active ingredient. The invention further relates to a process for the preparation of the microparticles, to the use thereof for the preparation of a composition for controlling plant pests, weeds or animal parasites, as well as to aqueous spray mixtures, water-dispersible granulates or water-dilutable powders containing the claimed microparticles.
(FR)
L'invention concerne des microparticules sensiblement sphériques comprenant un composé biologiquement actif, qui forme le noyau, et un matériau polymère, qui forme une capsule dont la paroi intérieure est revêtue d'une couche de cire hydrophobe qui forme une couche intermédiaire qui encapsule complètement ou partiellement l'ingrédient actif. La présente invention concerne également un procédé permettant de préparer ces microparticules, l'utilisation de ces microparticules pour préparer une composition destinée à la lutte contre les parasites végétaux, les mauvaises herbes ou les parasites animaux, ainsi que des mélanges aqueux à pulvériser, des granulés dispersibles dans l'eau ou des poudres diluables dans l'eau contenant les microparticules selon l'invention.
Also published as
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