EP0021477A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Pesticidal, toxicant-containing compositions, their preparation and their use
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1980-05-28
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Granted: —
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Expires: 2000-05-28
Abstract
Abstract The invention provides a biologically active composition comprising an oil, preferably a solid paraffin wax, having dispersed therein a number of inclusions which contain a toxicant, advantageously a systemic pesticide, and a dispersing agent, the average diameter of said inclusions being between 10 -8 and 10- 5 m, their preparation, and, when the toxicant is a pesticide, their use in combating pests. The composition may also include additives for Frelease rate optimisation and/or improvement of mechanical strength, in the case of a solid composition.
Inventors
- 👤 Nicholas Munro Pearman
- 👤 Alistair Christie Hill
- 👤 Cornelis Van Der Hoeven
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:00
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/08; A01N47/10; A01N47/24; A01N25/00; A01N25/02; A01N25/04; A01N25/08; A01N25/12; A01N57/00; A01N57/10; A01N57/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
34 words
A composition comprising an oil having dispersing therein a number of inclusions which contain a toxicant and a dispersing agent, the average diameter of said inclusions being between 10 -8 and 10 -5 m.
Claim 2
Dependent Claim
34 words
A composition comprising an oil having dispersing therein a number of inclusions which contain a toxicant and a dispersing agent, the average diameter of said inclusions being between 10 -8 and 10 -5 m.
Claim 3
Dependent Claim
17 words
A composition according to Claim 1 further characterised in that the oil is a solid paraffin wax.
Claim 4
Dependent Claim
18 words
A composition according to Claim 1 or 2 further characterised in that the toxicant is an systemic insecticide.
Claim 5
Dependent Claim
20 words
A composition according to any of Claims 1 to 3 further characterised in that the toxicant is dicrotophos or methomyl.
Claim 6
Dependent Claim
71 words
A composition according to any of Claims 1 to 4 further characterised in that the dispersing agent is a silica, a product resulting from cation exchange reactions between an organic base and a clay mineral, a montmorillonite, modified with a dimethyloctadecyl ammonium salt, a homopolymer of an alkylacrylate or a copolymer of an alkylacrylate with a vinyl compound, or an oxidised polyethylene wax with a molecular weight of at most 5000.
Claim 7
Dependent Claim
30 words
A composition according to any of Claims 1 to 5 further characterised in that the amount of toxicant is in the range of 2-45% w, calculated on the total composition.
Claim 8
Dependent Claim
31 words
A composition according to any of Claims 1 to 6 further characterised in that the amount of dispersing agent is in the range of 1-10% w, calculated on the total composition.
Claim 9
Dependent Claim
28 words
A composition according to any one of Claims 1 to 7 further characterised in that one or more additives for release rate optimisation are incorporated in the composition.
Claim 10
Dependent Claim
32 words
A composition according to any one of Claims 1 to 8 further characterised in that one or more additives for improving the mechanical strength of the composition are incorporated in the composition.
Claim 11
Dependent Claim
30 words
A composition according to Claim 8 or 9, further characterised in that the amount of additive(s) is in the range of 0.5 to 10% w calculated on the total composition.
Claim 12
Independent Claim
64 words
A method for the preparation of a solid composition as claimed in any one of Claims 1 to 10 characterised in that to a liquid mixture of an oil, a dispersing agent and optionally an additive under stirring a toxicant is added and after emulsification the stirred mixture is divided into discrete drops which are allowed by cooling to solidify in a reception zone.
Claim 13
Dependent Claim
38 words
A method according to the Claim 11 further characterised in that the stirred mixture is atomised with the aid of a gasstream the droplets thus formed being allowed to solidify before reaching a wall of the reception zone.
Claim 14
Independent Claim
31 words
A method for combating pests at a locus which comprises applying to the locus a composition as claimed in any of Claims 1 to 10 wherein the toxicant is a pesticide.
References Cited (Backward Citations)
No citation records indexed.
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