JPH04300804A - Pheromone preparation - Google Patents

Abstract

PURPOSE:To provide the subject sustained release pheromone preparation for the control of noxious insects, easily attachable to an attraction trap and capable of stably releasing the pheromone. CONSTITUTION:A polymer layer 3 containing pheromone is placed between the 1st barrier layer 1 and the 2nd barrier layer 2 and each layer is closely fixed with a tacky adhesive sheet 4. The widths of the layers are selected to satisfy a specific relationship to give the objective pheromone preparation.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pheromone preparation containing pheromones, and more particularly to a sheet-shaped pheromone preparation that can be easily attached to a trap for attracting and capturing pests.

0002

[Prior Art] In recent years, as a method of controlling pests that does not cause environmental pollution, a mast is used to attract and trap a large number of target pests by combining a sustained-release preparation that uses pest pheromones with a trap and placing it outdoors. The wrapping method and the trap monitoring method, which investigates the emergence and development of pests in order to accurately determine the timing and amount of pesticide spraying, are attracting attention.

[0003] Such pheromone-containing preparations include:
It is known that a molded polymer is impregnated or encapsulated with a pheromone, but in such a case, a part for installing and fixing the pheromone preparation is required in the trap.

[0004] In addition, as a pheromone preparation that is easy to install and fix in a trap, for example, Utility Model Application Publication No. 2-1106
Although a sheet-like preparation described in Publication No. 02 has been devised,
Since the auxiliary release layer for releasing the contained pheromones is stacked adjacent to the pheromone-containing layer, the release characteristics are easily affected by the material of the auxiliary release layer, and the required properties include adhesion to the barrier layer, etc. It is necessary.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of conventional pheromone preparations. The purpose of the present invention is to provide a pheromone preparation with stable release characteristics.

[0006]

[Means for Solving the Problems] Therefore, as a result of extensive studies in order to achieve the above object, the present inventors have interposed a pheromone-containing polymer layer between two barrier layers,
The present inventors have discovered that a pheromone preparation that achieves the above object can be obtained by maintaining a specific relationship between the widths of each layer of a pheromone preparation in which each layer is adhesively fixed with an adhesive sheet or an adhesive layer, and the present invention has been completed. .

That is, in the present invention, a first barrier layer that does not allow pheromone to pass through is laminated on one side of a polymer layer containing pheromone in a dissolved or dispersed state, and a second barrier layer is laminated on the other side. A preparation formed by laminating adhesive sheets covering the entire surface of the layer, the width of each layer in at least one cross section of the preparation being d1≧d4≧d2≧
d3 (where d1 is the width of the first barrier layer, d2 is the width of the second barrier layer, d3 is the width of the polymer layer, and d4 is the width of the adhesive sheet). It provides a pheromone preparation.

[0008] The present invention will be specifically explained below with reference to the drawings. 1 to 7 are cross-sectional views showing examples of the pheromone preparation of the present invention. In each figure, (a) is a cross-sectional view, and (b) is a plan view.

FIG. 1 shows that a pheromone-containing polymer layer 3 and a second barrier layer 2 are sequentially laminated on a first barrier layer 1, and the entire surface of the second barrier layer is covered with an adhesive sheet 4. 4 is adhesively fixed to the first barrier layer at the periphery thereof. It is preferable to provide an adhesive layer 5 on the other surface of the first barrier layer 1, as shown in FIG. 1(a), so as to facilitate adhesive fixation to the trap. The adhesive layer 5 can be provided by applying an adhesive or pasting a double-sided adhesive sheet. Further, it is preferable to cover the exposed surface of the adhesive layer 5 with a separator 6 until it is used to prevent contamination and deterioration.

Further, in the present invention, as is clear from FIG. 1(a), the width of each layer in at least one direction of the cross section of the pheromone preparation satisfies d1≧d4≧d2≧d3.
(However, d1 is the width of the first barrier layer, d2 is the width of the second barrier layer, d3 is the width of the polymer layer, and d4 is the width of the adhesive sheet.) By setting the width of each layer so as to satisfy the above relational expression, the pheromone-containing polymer layer 3
Even if the polymer layer 3 does not have tackiness or adhesive properties, the polymer layer 3 is tightly adhered to the first and second barrier layers by the adhesive sheet 4, so the shape of the drug is stably maintained. can. Furthermore, as shown in each figure (a), the contained pheromones are directly released from the side surface of the polymer layer 3 exposed to the atmosphere without passing through other layers, so that stable release characteristics can be obtained.

FIG. 2 shows a modification of the pheromone preparation having the same structure as FIG. 1, but with a first barrier layer 1 and a second barrier layer 2.
A polymer layer 3 is interposed approximately at the center in the thickness direction.

1 and 2, the adhesive layer 5 is provided on the other surface of the first barrier layer (lower surface in the figure), but even if the adhesive layer 5 is not provided, the adhesive sheet 4 can be used as a double-sided adhesive. By forming it into a sheet, the structure can be simplified and it can be adhesively fixed to the trap.

FIG. 3 is a cross-sectional view and a plan view showing another example of the pheromone preparation of the present invention, in which a first barrier layer 1 and a second barrier layer 2 are laminated on both sides of a pheromone-containing polymer layer 3. , a part of its periphery is adhesive layer 5
It is made by adhering. With such a structure, the polymer layer 3 is reliably retained in the formulation without falling off, and the adhesive layer 5 can be provided on the other surface of the first barrier layer 1 (lower surface in the figure). This simplifies attachment to the trap. With the structure shown in FIG. 3, the polymer layer 3 is fixed in the formulation, so the second barrier layer 2
There is no particular need to provide the adhesive sheet 4 on top of the .

FIG. 4 shows another example of the pheromone preparation of the present invention, which is basically a modification of FIG. In other words, Figure 3
In the formulation, the other surface of the first barrier layer 1 (lower surface in the figure)
The adhesive layer 5 provided on the second barrier layer 2 is not provided, and a double-sided adhesive sheet 4 is provided as an adhesive sheet 4 on the other surface (the upper surface in the figure) of the second barrier layer 2.

5 and 6 are modified examples of FIG. 3,
Fig. 5 shows an attempt to use the adhesive layer 5 used for adhesion between the first barrier layer 1 and the second barrier layer 2 to fix the preparation to the trap, and Fig. 6 shows an attempt to further ensure adhesion. In addition, an adhesive layer 5 is also provided on the other surface (upper surface in the figure) of the second barrier layer.

FIG. 7 shows a modification of FIG. 1, in which the adhesive sheet 4
A double-sided adhesive sheet is provided on the other surface of the second barrier layer 2. Furthermore, as is clear from a comparison between FIG. 7(b) and the plan views of other figures, the sheet in FIG. 7(b) is elongated. By producing the pheromone preparation of the present invention in a long shape in this way, the pheromone content can be set by cutting the preparation into an appropriate length according to the purpose, so the sustained release time of the pheromone can be set as desired. This makes it easy to set.

[0017] As the pheromone used in the present invention, a sex pheromone, an aggregation pheromone, etc., which exhibit attracting activity to insects, are used. Specifically, (Z)-11-tetradecenyl acetate, (Z)-9-tetradecenyl acetate, (E)-11-tetradecenyl acetate, (
Z)-9-dodecenyl acetate, 10-methyldodecenyl acetate, 11-dodecenyl acetate, (Z)-
7-hexadecenal, (Z)-9-hexadecenal, (Z)-11-hexadecenal, (Z)-11-hexadecenol, (Z)-11-hexadecenyl acetate, (Z)-11-tetradecenal, (R )−(−
)-10-methyl-2-tridecanone, (R,Z)-(
-)-5-(1-decenyl)oxacyclopentane-2
-on, (Z,Z)-3,6,-cis-(9S,10R
) Epoxyhenecosadiene, α-linoleic aldehyde, α-linolenic aldehyde, (E)-6-(1-
pentenyl)-2H-pyran-2-one, invictolide, dihydroactinidiolide, (+)-anastrefin, (-)-anastrephine, (+)-epianastrefin, (-)- Epianastrephine, Suspensolide, Ladrua, (3S,11S)-dimethylnonacosan-2-one, (R)-1-methylbutyldecanoate, (7R,8S)-cis-7,8,- Examples include epoxy-2-methyl-octadecane, (5Z)-methyltetradecanoate, (Z)-9-(E)-12-tetradecadienyl acetate, and these may be used alone or in a mixture of two or more. It can be contained in the polymer as

The polymer constituting the polymer layer 3 containing the above-mentioned pheromone in a dissolved or dispersed state is not particularly limited, but includes, for example, polysulfone, polycarbonate, polystyrene, polymethacrylic acid ester, polyamide, polyester, and polyvinylidene halide. , cellulose ester, regenerated cellulose, polyurethane, polyvinyl alcohol, polyvinyl chloride, polyvinyl acetate, ethylene/vinyl acetate copolymer, vinyl chloride/vinyl acetate copolymer, polystyrene/polybutadiene block copolymer, etc. These polymers can be used alone or in combination of two or more.

First barrier layer 1 and second barrier layer 2
is not particularly limited as long as it is made of a material that can prevent the pheromone from permeating through diffusion etc. Examples include metal foil such as aluminum, resin sheets made of polyester, polyamide, etc., and laminated sheets of these materials. The thickness is usually preferably about 10 to 200 μm.

For the adhesive layer 5, a known adhesive such as an acrylic adhesive, a rubber adhesive, or a vinyl adhesive can be used. Further, the adhesive sheet 4 may be a base material such as paper, various plastic sheets, non-woven fabrics, woven fabrics, metal foils, etc., with the above-mentioned various adhesives applied to one or both sides.

[0021]

[Examples] Examples are shown below to illustrate specific examples of the pheromone preparation of the present invention.

Example 1 At the center of one side of a 5 cm wide polyester film, (Z
)-11-hexadecenyl acetate 50 parts by weight, (Z
)-11-hexadecenal 50 parts by weight, (Z)-11
- 1 part by weight of hexadecenol, 100 parts by weight of polyester resin
A solution prepared by dissolving part by weight in ethyl acetate was applied to a 1 cm width, dried, and then a 2 cm wide polyester film was laminated to cover the applied area. Furthermore, a 5 cm wide double-sided adhesive sheet was pasted on top of it to prepare a pheromone preparation. Cut this into 1cm increments in the length direction to make 1cm x 5
It was made into a pheromone preparation with a size of cm.

Example 2 At the center of one side of a 5 cm wide polyester film, (Z
)-11-tetradecenyl acetate 10 parts by weight, (Z
)-9-tetradecenyl acetate 20 parts by weight, (E)
- Apply a solution of 1 part by weight of 11-tetradecenyl acetate, 10 parts by weight of 10-methyldodecyl acetate, and 120 parts by weight of polymethacrylic acid methyl ester resin dissolved in ethyl acetate in a 0.5 cm width, and dry. Next, a 2 cm wide polyester film was laminated to cover the coated area. Further, a pressure-sensitive adhesive sheet made of a 3 cm wide polyester film as a base material was attached thereon. Next, apply acrylic adhesive to the entire back surface of the adhesive sheet,
This was then covered with a separator to form a pheromone preparation. Cut this into 1.5cm pieces every 1.5cm in the length direction.
A pheromone preparation was prepared with a size of 5 cm.

Example 3 At the center of one side of a 5 cm wide polyamide film, (R,
A solution prepared by dissolving 15 parts by weight of Z)-(-)-5-(1-decenyl)oxacyclopentan-2-one and 30 parts by weight of ethylene/vinyl acetate copolymer in methylene chloride was added to 1.
It was coated in a 5 cm width, dried, and then a 2.5 cm wide polyamide film was laminated to cover the coated area. Further, a pressure-sensitive adhesive sheet made of a 4 cm wide polyester film as a base material was attached thereon. Next, a double-sided adhesive sheet was attached to the entire back surface of the adhesive sheet to prepare a pheromone preparation. Cut this into 1cm increments in the length direction to make 1cm x
The pheromone preparation had a size of 5 cm.

Example 4 At the center of one side of a 5 cm wide polyester film, (7
A solution prepared by dissolving 10 parts by weight of R,8S)-cis-7,8-epoxy-2-methyloctadecane and 100 parts by weight of polystyrene resin in methylene chloride was applied in a 1 cm width, dried, and then applied so as to cover the applied area. Then, a pressure-sensitive adhesive sheet made of a polyester film having a width of 3 cm and provided with a pressure-sensitive adhesive at a width of 5 mm from both ends in the width direction was attached so that the pressure-sensitive adhesive did not come into contact with the pheromone-containing polymer layer. Next, add 4 cm to the other side of the 5 cm wide polyester film.
A pheromone preparation was made by pasting a double-sided adhesive sheet of 300 mL on each side. Cut this into 10cm increments in the length direction to make 10cm x 5c.
It was made into a pheromone preparation with a size of m.

[0026]

Effects of the Invention As described above, the pheromone preparation of the present invention can be easily attached to an attraction trap, has a simple structure, and has stable pheromone release characteristics. Moreover, since the adhesive sheet improves the adhesion between the pheromone-containing polymer layer and the first barrier layer and the second barrier layer, the formulation shape can be stably maintained.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

FIG. 2 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

FIG. 3 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

FIG. 4 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

FIG. 5 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

FIG. 6 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

FIG. 7 is a cross-sectional view (a) and a plan view (b) showing an example of the pheromone preparation of the present invention.

[Explanation of symbols]

1 First barrier layer 2 Second barrier layer 3 Pheromone-containing polymer layer 4 Adhesive sheet 5 Adhesive layer 6 Separator

Claims (4)

[Claims] Claim 1: A polymer layer containing pheromones in a dissolved or dispersed state is laminated with a first barrier layer that does not transmit pheromones on one side and a second barrier layer on the other side, and further, the entire surface of the second barrier layer is laminated. A preparation formed by laminating adhesive sheets to be coated, wherein the width of each layer in at least one cross section of the preparation satisfies d1≧d4≧d2≧d3 (
However, d1 is the width of the first barrier layer, d2 is the width of the second barrier layer, d3 is the width of the polymer layer, and d4 is the width of the adhesive sheet. ) A pheromone preparation characterized by the following relational expression. 2. The pheromone preparation according to claim 1, wherein a portion of the periphery of the first barrier layer and the second barrier layer laminated on both sides of the pheromone-containing polymer layer is adhered by an adhesive layer. 3. The pheromone preparation according to claim 1 or 2, wherein the adhesive sheet is a double-sided adhesive sheet. 4. The pheromone preparation according to claim 1, wherein an adhesive layer is formed on the surface of the first barrier layer opposite to the surface on which the pheromone-containing polymer layer is laminated.