WO1996037100A1 - Nouvelles emulsions aqueuses renfermant un principe actif pesticide stabilisees par des polymeres - Google Patents
Nouvelles emulsions aqueuses renfermant un principe actif pesticide stabilisees par des polymeres Download PDFInfo
- Publication number
- WO1996037100A1 WO1996037100A1 PCT/FR1996/000763 FR9600763W WO9637100A1 WO 1996037100 A1 WO1996037100 A1 WO 1996037100A1 FR 9600763 W FR9600763 W FR 9600763W WO 9637100 A1 WO9637100 A1 WO 9637100A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aqueous emulsions
- emulsions according
- active principle
- aqueous
- polymer
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N25/00—Biocides, 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; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, 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; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
Definitions
- New aqueous emulsions containing a pesticidal active principle stabilized by polymers are described.
- the present invention relates to new aqueous emulsions containing a pesticidal active principle stabilized by polymers.
- the subject of the invention is aqueous emulsions containing an active pesticidal principle, characterized in that they contain an emulsion of the class of polymers, containing no surfactant and little or no aromatic solvent.
- Aqueous emulsions have certain advantages over emulsifiable concentrates. They allow the volume of organic solvent used to be reduced, or even eliminated, the organic solvent being replaced in part or even entirely by an aqueous phase. As a result, the toxicity and risks of flammability and environmental pollution are reduced.
- aqueous emulsions of the invention also have the characteristic of not containing any surfactant.
- aqueous emulsions of the invention make it possible to conserve the biological activity of the active principle while exhibiting less toxicity.
- the pesticidal active ingredients which can be used in the compositions of the invention are, for example, insecticides, acaricides, fungicides or herbicides.
- the polymers which can be used for the preparation of the compositions of the invention mainly belong to 4 major groups. 1st group:
- aqueous emulsions of the invention consist of two phases:
- the polymer (s) and optionally an antifreeze and / or an antifoam, which must
- a more particular subject of the invention is aqueous emulsions, characterized in that they contain from 10 to 90% of water, from 0 to 15% of active principle and from 1 to 15% of emulsifying polymer.
- the invention particularly relates to aqueous emulsions, characterized in that the polymer is an alkylated vinylpyrrolidone copolymer, a polyoxyethylene polycarboxylic copolymer having some free acid functions or a crosslinked acrylic polymer.
- aqueous emulsions of the invention mention may be made of those in which the active principle is a pyrethroid, for example a pyrethroid chosen from the group of the following products: deltamethrin, cypermethrin, alphamethrin, traiorethrin, cyalothrin, fenvalerate, cyfluthrin, flucythrenate, fluvalinate, fenpropathrin, tefluthrin, bifenthrin, acrrinthrin, betacyfluthrin, taufluvalinate, lambda- cyalothrin and esfenvalerate.
- aqueous emulsions of the invention mention may be made very particularly of those in which the pyre ⁇ thrinoid is deltamethrin.
- emulsions of the invention mention may be made of emulsions characterized in that they contain from 20 to 50% of solvent and optionally from 0.01 to 0.5% of antifoam and from 1 to 10% of antifreeze.
- the subject of the invention is in particular emulsions characterized in that the active principle is a pyridine derivative.
- the invention very specifically relates to emulsions characterized in that they contain from 1 to 150 g per liter of active principle, from 2 to 80 g per liter of polymer, from 600 to 800 g per liter of water and possibly 0.1 to 5 g per liter of antifoam and 20 to 150 g per liter of antifreeze.
- the invention also relates to a preparation process characterized in that: 1 - the aqueous phase is prepared containing the emulsifying polymer and optionally an antifreeze and / or an antifoam, 2 - the organic phase is prepared containing the active principle and possibly one or more solvents and other ingredients. 3 - the organic phase is poured into the aqueous phase with stirring and the desired emulsion is obtained.
- the aqueous emulsions of the invention can be used in agriculture and the invention also relates to the application, characterized in that the aqueous emulsions are diluted in water and spread on the crops at the rate of 2 to 20 g of active ingredient per hectare.
- a more particular subject of the invention is the application of the aqueous emulsions of the invention to combat insects and parasitic mites of cereals and in particular wheat.
- Aqueous emulsions corresponding to the general formula were prepared:
- the operating procedure takes place in 3 stages:
- the constituents of the aqueous phase are mixed by stirring until the solution is homogeneous, the density of the solution is then measured.
- the percentages of the 2 solvents used are determined to be close to a density equal to one, and after mixing the different constituents the density is measured.
- Toxicity study The oral toxicity in rats of emulsions containing deltamethrin, was studied in comparison with an emulsifiable concentrate, at a dose of 1000 mg / kg, the toxicity of the aqueous emulsion is much lower than that of the concentrate emulsifiable.
- Biological activity The oral toxicity in rats of emulsions containing deltamethrin, was studied in comparison with an emulsifiable concentrate, at a dose of 1000 mg / kg, the toxicity of the aqueous emulsion is much lower than that of the concentrate emulsifiable.
- each pot is infested with 16 adult aphids - 8 pots are used for each condition. Effectiveness evaluation
- the aphid populations are estimated plant by plant without distinction of stage according to the following rating scale:
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Plant Pathology (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8535436A JPH11505823A (ja) | 1995-05-23 | 1996-05-22 | ペスチサイド活性成分を含有し且つポリマーによって安定化された、新規の水性エマルション |
EP96917529A EP0827376A1 (fr) | 1995-05-23 | 1996-05-22 | Nouvelles emulsions aqueuses renfermant un principe actif pesticide stabilisees par des polymeres |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9506092A FR2734452B1 (fr) | 1995-05-23 | 1995-05-23 | Nouvelles emulsions aqueuses renfermant un principe actif pesticide stabilisees par des polymeres |
FR95/06092 | 1995-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996037100A1 true WO1996037100A1 (fr) | 1996-11-28 |
Family
ID=9479270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1996/000763 WO1996037100A1 (fr) | 1995-05-23 | 1996-05-22 | Nouvelles emulsions aqueuses renfermant un principe actif pesticide stabilisees par des polymeres |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0827376A1 (fr) |
JP (1) | JPH11505823A (fr) |
CA (1) | CA2218762A1 (fr) |
FR (1) | FR2734452B1 (fr) |
WO (1) | WO1996037100A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080146445A1 (en) * | 2004-12-17 | 2008-06-19 | Devgen Nv | Nematicidal Compositions |
CN110037015A (zh) * | 2019-04-30 | 2019-07-23 | 南京荣诚化工有限公司 | 一种结合高效氯氰菊酯与甲基嘧啶磷的水乳剂及其制造方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4086141B2 (ja) * | 2001-10-23 | 2008-05-14 | 日新製鋼株式会社 | 生活害虫忌避性に優れた塗装金属板 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989003175A1 (fr) * | 1987-10-14 | 1989-04-20 | Dow Chemical Company Limited | Compositions a usage agricole contenant du late |
EP0589838A1 (fr) * | 1992-09-21 | 1994-03-30 | Ciba-Geigy Ag | Emulsions aqueuses pesticides stables au stockage |
WO1995007614A1 (fr) * | 1993-09-15 | 1995-03-23 | Dowelanco | Stockage et dilution de dispersions aqueuses stables |
-
1995
- 1995-05-23 FR FR9506092A patent/FR2734452B1/fr not_active Expired - Fee Related
-
1996
- 1996-05-22 JP JP8535436A patent/JPH11505823A/ja active Pending
- 1996-05-22 WO PCT/FR1996/000763 patent/WO1996037100A1/fr not_active Application Discontinuation
- 1996-05-22 CA CA 2218762 patent/CA2218762A1/fr not_active Abandoned
- 1996-05-22 EP EP96917529A patent/EP0827376A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989003175A1 (fr) * | 1987-10-14 | 1989-04-20 | Dow Chemical Company Limited | Compositions a usage agricole contenant du late |
EP0589838A1 (fr) * | 1992-09-21 | 1994-03-30 | Ciba-Geigy Ag | Emulsions aqueuses pesticides stables au stockage |
WO1995007614A1 (fr) * | 1993-09-15 | 1995-03-23 | Dowelanco | Stockage et dilution de dispersions aqueuses stables |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080146445A1 (en) * | 2004-12-17 | 2008-06-19 | Devgen Nv | Nematicidal Compositions |
CN110037015A (zh) * | 2019-04-30 | 2019-07-23 | 南京荣诚化工有限公司 | 一种结合高效氯氰菊酯与甲基嘧啶磷的水乳剂及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2734452B1 (fr) | 1997-07-04 |
JPH11505823A (ja) | 1999-05-25 |
FR2734452A1 (fr) | 1996-11-29 |
EP0827376A1 (fr) | 1998-03-11 |
CA2218762A1 (fr) | 1996-11-28 |
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