EA003788B1 - Barrier preventing wood pest access to wooden structures - Google Patents

Abstract

1. A barrier for preventing a wood pest from accessing a wooden structure, comprising a pesticide within a polymer matrix, wherein said pesticide is in an amount that is sufficient to prevent said wood pest from breaching said barrier. 2. The barrier as recited in claim 1, wherein said pesticide is substantially not released from said barrier. 3. The barrier as recited in claim 1, wherein said pesticide is on a surface of a polymer matrix in an amount that is sufficient to prevent said wood pest from breaching said barrier. 4. The barrier as recited in claim 1, wherein polymer is hydrophobic. 5. The barrier as recited in claim 2, further comprising binding carrier, combined with a pesticide for controlling release rate, wherein said pesticide is substantially not released from said barrier. 6. The barrier as recited in claim 5, wherein a carrier is selected from the group consisting of carbon black, activated carbon, alumina, silicoaluminate, hydroxyapatite and combinations thereof. 7. The barrier as recited in claim 5, wherein said amount of binding carrier is no less than 3wt% of a matrix. 8. The barrier as recited in claim 7, wherein a matrix is formed as a sheet. 9. The barrier as recited in claim 2, wherein additionally comprising one or more additional layers, selected from sackcloth, netting, sheet and combinations thereof. 10. The barrier as recited in claim 9, wherein at least one additional layer is a sheet formed from polymer. 11. The barrier as recited in claim 9, wherein at least one additional layer is a sheet formed from mylar, saran or saranax. 12. The barrier as recited in claim 11, wherein said pesticide contains lambdacyhalthrin. 13. The barrier as recited in claim 12, wherein said polymer is a polyethylene of a low density. 14. The barrier as recited in claim 7, wherein said pesticides is combined with a carrier, and particles of the said pesticide is bound within a polymer matrix. 15. The barrier as recited in claim 1, wherein pesticide is selected from the group consisting of isofenphos, fenvalerate, cypermethrin, permethrin, pyrethrin, lambdacyhalthrin, cyfluthrin, deltamethrin and combinations thereof. 16. The barrier as recited in claim 1, wherein polymer is selected from the group consisting of polyethylene of a high density, polyethylene of a low density, vinyl acetate, urethane, polyester, santoprene, neoprene, polyethylene, polypropylene, polybutylene, epoxy polymers, polyamides, acrylate-styrene- acrylonitriles, aromatic polyesters, unsaturated polyesters, polyurethanes, silicones and its copolymers. 17. The barrier as recited in claim 1, wherein polymer is selected from the group consisting of polyethylene of a high density, polyethylene of a low density, vinyl acetate, urethane, polyester, santoprene, silicone and neoprene. 18. The barrier as recited in claim 1, wherein said amount of the pesticide is no less then 1 wt% of a matrix. 19. The barrier as recited in claim 13, wherein said amount of the pesticide is no less then 1 wt% of a matrix. 20. The barrier as recited in claim 1, further comprising another pesticide, which is a high volatility pesticide within another polymer, which is a low density polymer. 21. The barrier as recited in claim 1, wherein a matrix is in the form of a band, sheet, or a pellet. 22. The barrier as recited in claim 1, wherein the barrier has at least one impenetrable layer for a wood pest. 23. A method for creating a barrier for preventing an access of pest to an area of ground or a structure, said method comprising the following steps: a) introduction of pesticide into polymer; b) forming of a polymer matrix containing pesticide; c) forming of said barrier comprising pesticide within a matrix in an amount that is sufficient to prevent said wood pest from breaching said barrier. 24. The barrier as recited in claim 23, further comprising step of binding: mixing said pesticide with a carrier before step of forming. 25. The method as recited in claim 23, wherein step of introducing comprises polymer fusion. 26. The method as recited in claim 24, wherein pesticide is bound with a carrier so that said pesticide is substantially not released from the barrier. 27. The method as recited in claim 26, wherein binding comprises the steps of: mixing said pesticide with a carrier as a bound friable mix. 28. The method as recited in claim 26, wherein said amount of the pesticide is at least 1 wt% of a matrix. 29. The method as recited in claim 27, wherein said carrier is selected from the group consisting of carbon black, activated carbon, alumina, silicoaluminate, hydroxyapatite and combinations thereof. 30. The method as recited in claim 27, wherein said amount of the carrier is at least 3 wt% of a matrix. 31. The method as recited in claim 23, wherein said pesticide is selected from the group consisting of isofenphos, fenvalerate, cypermethrin, permethrin, pyrethrin, teflothrin, lambdacyhalthrin, cyfluthrin, deltamethrin and combinations thereof. 32. The method as recited in claim 23, wherein polymer is selected from the group consisting of polyethylene of a high density, polyethylene of a low density, vinyl acetate, urethane, polyester, santoprene, neoprene, polyethylene, polypropylene, polybutylene, epoxy polymers, polyamides, acrylate-styrene- acrylonitriles, aromatic polyesters, unsaturated polyesters, polyurethanes, silicones and its copolymers. 33. The method as recited in claim 23, wherein said pesticide is a low volatility pesticide and said polymer has a high or medium density. 34. The method as recited in claim 23, further comprising mixing of another pesticide, which is a high volatility pesticide within another polymer, which is a low density polymer. 35. The method as recited in claim 23, wherein said pesticide is lambdacyhalothin. 36. The method as recited in claim 35, wherein polymer is polyethylene of a low density. 37. The method as recited in claim 25, wherein the barrier further comprises another pesticide, which is a high volatility pesticide within another polymer, which is a low density polymer. 38. The method for preventing of entry of crawling or soil borne insects to provide long-term protection of an area of ground or a structure from intrusion by said insects, said method comprising the following steps: (a) placing a controlled release barrier at entry points to said area or structure, said barrier having an outside surface and comprising polymer and pesticide, in which pesticide is within said polymer, and said polymer forms a polymer matrix; (b) allowing the pesticide to release from a polymer matrix with the release rate that is sufficient to repel or kill insects coming in contact with the surface of the barrier so as to protect said area or said structure from intrusion by said crawling or soil borne insects. 39. The method as recited in claim 38, wherein said pesticide is substantially not released from outside surface of the barrier. 40. The method as recited in claim 38, further comprising the release rate of said pesticide onto outside surface of the barrier. 41. The method as recited in claim 38, wherein the release rate of the pesticide is at least 10 mug/cm2/day. 42. The method as recited in claim 38, wherein said pesticide is released from the polymer matrix and accumulate on said surface with the controlled release. 43. The method as recited in claim 38, wherein the polymer is selected from the group consisting of silicones, EVA, urethanes, polyurethanes, polyethylenes, acrylonitrile, butadiene, acrylic rubber, isoprene and styrene-vinyl rubber. 44. The method as recited in claim 38, further comprising step of binding of the pesticide with a carrier before adding of said pesticide within the polymer matrix for lowering of the release rate of the pesticide from the polymer matrix. 45. The method as recited in claim 44, wherein binding carrier is selected from the group consisting of carbon black, activated carbon, alumina, silicoaluminate, hydroxyapatite and combinations thereof. 46. The method as recited in claim 38, further comprising step of forming of the polymer matrix into the form of a band, a sheet, or a pellet. 47. The method as recited in claim 44, wherein the concentration of binding carrier is from about 2 to about 7 % of the total weight of the polymer matrix. 48. The method as recited in claim 38, wherein the concentration of the pesticide is from about 2 to about 15 % of the total weight of the polymer matrix. 49. The method as recited in claim 38, wherein said pesticide is selected from the group consisting of deltamethrin, cypermethrin, lambdacyhalthrin, cyfluthrin, permethrin and combinations thereof. 50. The method as recited in claim 38, wherein the pesticide is lambdacyhalthrin is and the polymer is polyethylene of a low density. 51. The method as recited in claim 38, wherein the barrier has outside surface, comprising at least one impenetrable layer for insects.

Description

The present invention relates to barriers to prevent the access of wood pests (for example, termites and insect dreaders) to wooden structures for their long-term protection. More specifically, it relates to a composition and method that creates and maintains a protective zone against insect pests, such as termites, ants, and other woodbore insects. The term bioactive, as used herein, means irritating an organism usually in a negative way for purposes of scaring, including its destruction.

Wood that is in contact with concrete, such as in a wooden building construction, and wood that is in contact with the ground, such as fence posts, pylons, railway sleepers and wooden bases, can be structurally destroyed by termites, ants and other insects. wood borers. To protect the wood from the effects of such pests available are insecticides.

In a wooden building construction, wood in contact with concrete can be structurally destroyed by the action of one or more wood pests, including (but not limited to) termites, ants, and other wood borers. Modern methods of preventing or slowing the spread of insects include fumigation, when the entire structure can be covered, and the insecticide is released there. The disadvantages of this method affect the interests of ecology and human health, as well as relate to a limited time until a sufficient reduction in the concentration of fumigant, allowing access of insects.

Although insecticides are effective against the effects of dwarf insects, insecticides must be reapplied at intervals from several days to several months or a year to remain effective. If insecticides are used by themselves in sufficient quantity to be effective for a certain period of time, they create problems for the environment, human health due to unpleasant odors, leaching of the soil and the volatility of the insecticide. In addition, even the largest quantities of insecticides used are dispersed in a relatively short time, and their reapplication is required.

Another disadvantage of traditional methods of application is that the concentration of bioactive ingredients, resulting from a single application, initially much higher than the minimum level required for effectiveness, but quickly decreases and in a relatively short period of time falls below the minimum effective level required to maintain the barrier.

For this reason, in recent years, a number of technologies for the controlled release of chemicals, such as insecticides, have been developed. These methods use polymer matrices and microcapsules to release the insecticide.

US Pat. No. 4,400,374 (Satbatech) discusses the use of polymer matrices, usually made of polyethylene, polypropylene, ethylene vinyl acetate, polyamide, polystyrene, polyvinyl acetate, or polyurethane, to control the release of insecticides, such as the insecticide commercially available under the brand name Eshi pap. A pore-forming agent and a porosity reducing agent are introduced into the polymer matrices discussed in US Pat. No. 4,400,374, which dissolve the matrix upon contact with soil moisture or an aqueous medium.

Similarly, US Pat. No. 4,405,360 (Sagbatech) refers to a polymeric release matrix, which may consist of polyamide, polyurethane, polyethylene, polypropylene, polystyrene, and other polymers. The controlled release mechanism works in conjunction with a blowing agent to release the herbicide into a moist environment.

The disadvantage of SatbateSh is the need for sufficient moisture to dissolve the matrix. During dry periods, although they prolong the life of the matrix, a decrease in the concentration of the insecticide occurs, which leads to the access of insects. In addition, the durability of the matrix is variable and depends on the moisture content.

In addition, US Patent 4,435,383 (Huyuppd) describes the use of a controlled release mechanism for insecticides, including carbamates, organothiophosphates, organophosphates, perchlorinated organic and synthetic pyrethruads. The release mechanism contains a hydrophobic barrier monomer, namely styrene and / or methyl styrene in combination with a monomer selected from one or more unsaturated mono- or dicarboxylic acids.

U.S. Patent 4,282,209 (Toskieg) describes a method for producing insecticide-polymer particles. Methyl insecticide is used to control insects that damage tobacco, cotton, or crops. Metomyl is soluble in polymers, such as polyamides, urethanes and epoxides, to provide enhanced residual insecticidal activity.

U.S. Patent No. 4,235,872 (Toskieg) describes the use of slow-release insecticide microcapsules having a core of methyl, surrounded by a coating of allaromatic unstitched polyurea. In the device described in this patent, methyl is used to protect vegetables, field crops and fruit crops.

U.S. Pat. No. 4,198,441 (Woid C1-1.) Discloses the use of insecticides, such as Oshil. in a controlled release matrix containing organopolysiloxane, hydrolyzable silane, and hydrolyzable organo-titanium.

Additionally, U.S. Patent 4,160,335 (Wiipd C1 a1.) Discusses a method for dispersing insecticidal substances by applying tapes on sheets of cellophane. An insecticidal substance, which may include Pigac, is also placed in the polymer.

Another method is described in Australian patent AI-B-82443/91. This patent describes two sheets of plastic elongated from the feed rolls. The upper surface of the lower sheet and the lower surface of the upper sheet are drawn through the appropriate varnish rolls, which coat a pesticide (for example, permethrin) in a volatile solvent on the surface of the sheets. The coated surfaces of the sheets are brought together by passing them between the pressure rollers. Covered and compacted sheets are placed under the bases of structures or placed around trees or plants to prevent termites from attacking. The disadvantages of this product and method are as follows: (1) the separation layer allows you to quickly release the coating and (2) the coating is not a single entity for the sheets, therefore, allows rapid diffusion through the sheets and limits the effective service life.

The coated granules have a pesticide absorbed onto a matrix, such as clay, and then coated with cross-linked resins that help ensure a slow release rate. The clay loses or releases the pesticide in a short period, at most a few weeks.

Although existing analogues consider the use of an insecticide introduced into the polymer matrix as controlled release agents, none of the references describe the creation and maintenance of a fully effective protective zone that is durable for several years or more. It is desirable to create such an area to prevent any contact between the wooden structure and insects that could damage such structures. A reliable protection zone is necessary to protect wooden structures for periods of time that are significantly larger than one year.

Considering the above, it is an object of the present invention to provide an insecticide zone for protecting wooden structures. Such a zone consists of a long-term barrier with low volatility and a short-term barrier with high volatility to protect the soil.

Another objective of this invention is to maintain a protective zone for relatively large periods of time from about 10 to 20 years.

The object of the present invention is a wood pest barrier having a lifetime and which is effective during the lifetime of the structure. Service life is achieved by binding the pesticide in the polymer matrix, which essentially prevents the release of the pesticide from the polymer.

Binding can be achieved by mixing the pesticide with the carrier as a bound bulk mixture prior to placing the bound bulk mixture in a polymer matrix.

The barrier can be made with an additional layer / layers, including (but not limited to) canvas, mesh, sheet, and combinations thereof. The additional layer / layers may contain a second pesticide that is the same or different compared to the pesticide in the barrier. In addition, a second pesticide can be released from the additional layer / layers for enhanced short-term protection.

The barrier and / or additional layer / layers can be made of a polymer selected from the group consisting of thermoplastic polymers, thermoset polymers, elastomeric polymers, and their copolymers. When insecticides are introduced into polymers, insecticides can be maintained or released at such a rate that they will be effective as toxic substances or repellents for insects that can damage wooden structures for a long period of time while maintaining sufficient concentrations in the barrier to prevent insects from penetrating through the barrier .

According to one aspect of the present invention, a polymer carrier system is provided in which the pesticide is bound to a carrier as a bonded bulk mixture. The sheet material with bound loose mixture is then placed near the wooden structure with the formation of a barrier through which no wood pests penetrate. An additional layer can provide a means for slow and relatively constant release of volatile insecticide to create a barrier zone outside the barrier itself in the soil around the wooden structure. The polymers include thermoplastic polymers, thermoset polymers, elastomeric polymers, and their copolymers, and the insecticide contains a family of insecticides known as pyrethrins.

According to another aspect of the present invention, a protection zone is created by placing the extrudate near the protected wooden structure. The extrudate has a polymeric feed system capable of controlled release of the insecticide. The carrier system maintains a steady and effective concentration of insecticide in the protection zone for long periods of time.

According to another aspect of the present invention, a tablet comprising a polymer and an insecticide is provided for creating and maintaining an equilibrium concentration of an insecticide for ants, termites, and other insect trees in the protective zone of the wooden structure. The tablet is placed near the wooden structure for treating the ground to protect the wooden structure from termites, ants and other wood borer insects. The tablet can be placed near the structure in various ways. In addition, the tablet can be embedded in the panel or even incorporated into the foam. In preferred embodiments, the polymers include thermoplastic polymers, thermoset polymers, elastomeric polymers, as well as their copolymers, and insecticides are pyrethrins.

According to another aspect of the present invention, a protection zone is created by injecting a hot melted polymer mixture. The controlled release device contains one or more pyrethrins and the polymer is selected from the group consisting of a thermoplastic polymer, elastomeric polymers and their copolymers.

According to other aspects of the invention, temperature controlled devices are used to create protective zones.

According to another aspect of the present invention, a controlled release device is used for fumigation structures.

It is advisable to place a barrier or create an area so as to prevent any contact between the wooden structure and insects that could damage such structures. The protection zone is necessary to protect wooden structures for long periods of time.

In another aspect of the present invention, a high density polymer containing a low volatility insecticide that provides a low insecticide release rate is combined with a low density polymer (soft) containing a higher volatility insecticide to create a reliable protective zone.

Therefore, taking into account the above, it is an object of the present invention to provide an insecticide barrier for protecting wooden structures.

Another object of the present invention is to provide a barrier and a protection zone having a long-term low volatility barrier and a short-term high volatility barrier to protect adjacent ground.

Another objective of this invention is to preserve the barrier for relatively long periods of time, or about 10-20 years.

The present invention together with the corresponding objectives and advantages is explained below with reference to the accompanying drawings.

FIG. 1 shows a first embodiment of the invention comprising a melt spun polymer sheet material and a physical melt bonded mixture of polymer and insecticide, where the mixture of polymer and insecticide is stained with the polymer sheet material.

FIG. 2 shows a second embodiment of the invention comprising a melt spun polymer sheet material and a physical melt bonded mixture of polymer and insecticide, where the mixture of polymer and insecticide is bonded in tapes to the polymer sheet material.

FIG. 3 shows a first method of using embodiments of the invention shown in FIG. 1 and 2, and the protection zone created by the release of the insecticide.

FIG. 4 shows a second method of using the first and second embodiments of the invention to create a protection zone.

FIG. 5 shows a third method of using the embodiments of the invention shown in FIG. 1 and 2, to create a protective zone.

FIG. 6 shows a third embodiment of the invention in the form of a cylindrical extrudate.

FIG. 7 shows a fourth embodiment of the invention in the form of a flat ribbon extrudate.

FIG. 8 illustrates a method for creating a guard zone using an embodiment of the invention shown in FIG. 6

FIG. 9 shows a method for using an embodiment of the invention shown in FIG. 7, to create a protective zone.

FIG. 10 shows another embodiment of the invention in the form of tablets, where tablets are introduced into the soil near the wooden structure.

FIG. 11 shows a cross-section of the tablets placed on the surface.

FIG. 12 shows the use of tablets in a concrete structure using foam.

FIG. 13 shows a cross section of a concrete base after filling with foam.

FIG. 14 shows the tablet system on the plate.

FIG. 15 shows a plate containing tablets applied to a concrete base.

FIG. 16 shows melt injection.

FIG. 17 shows the placement in the melt injection space.

FIG. 18 shows fumigating cement blocks with stoppers.

FIG. 19 illustrates a method for installing plugs in fumigating cement blocks.

FIG. 20 shows a layered device of the present invention.

FIG. 21 shows yellowing termites scaring.

FIG. 22 shows termites scaring.

It has been found that there is a significant reduction in insects that can damage wooden structures when the barrier, alone or in combination with the insecticide protection zone, is maintained for long periods of time in the soil surrounding such structures. The protective zone is an area that has a sufficient amount of a chemical agent to scare away the fauna. In the present invention, the chemical agent is an insecticide, and the fauna is insects, especially dwarf insects, for example, termites and ants. According to the present invention, the insecticide is retained in the barrier and / or released from a controlled release device containing a polymer matrix system for at least 6 years.

A device for controlled release is a device that performs a controlled and steady-state release of a bioactive chemical from its surface and from its surface into the environment, such as soil. By means of the device, a method of controlled release of a chemical substance to the environment is carried out. The device releases the insecticide first at high speed and then at low steady speed. This release ensures that the wooden object becomes protected in a relatively short period of time, and after reaching the minimum effective level, only the amount of insecticide that is needed to replace a decomposed insecticide is released. This release minimizes potential environmental and health problems from processing and reduces processing costs. The rate of release of the device depends only on the design of the device and does not depend on external factors, such as water.

The controlled release device provides a near-intermediate solution for the release of the insecticide into the soil at the desired speed with the formation of an area having the minimum effective level of the insecticide necessary to prevent insect invasion. As used in the description and in the claims, the term minimum effective level is used to determine the level of insecticide needed in an area to prevent insect invasion of the area, and the specific level depends on the particular insect and specific insecticide. When placed adjacent to the base or the underground part of the structure, a protective zone is formed in the ground near the device. When placed between a non-wooden part of the structure and an attached wooden part of the structure, a protective zone is created at the interface between the non-wooden part of the structure and the attached wooden part of the structure.

The insecticides used in the preferred embodiments should be approved by the United States Environmental Protection Agency with insecticides to kill or scare off termites, ants, and other tree-dwelling insects. Insecticides that are currently preferred for use in the present invention are pyrethrins, including tefluthrin, lambdacygalothrin, cyfluthrin, and deltamethrin. However, it will be clear to those skilled in the art that other effective insecticides, such as isofenphos, fenvalerate, cypermethrin, permethrin and natural pyrethrin, can also be used. They are available from a number of commercial sources such as Όο \ ν. Moby, 1C1, Uek1co1 and EMC, respectively. The combination of insecticides, or one or more insecticides in combination with other bioactive ingredients, such as fungicides, are also in accordance with this invention.

The first embodiment of the controlled release shown in FIG. 1, uses a carrier polymer device for controlled release of an insecticide with the creation of a protective zone. Option contains spun from the melt polymer sheet material 20 and the physical melt-bound mixture of polymer and insecticide (shown as spots in Figs. 1 and 3-5). The melt-spun polymeric sheet material 20 may be either a woven or non-woven fabric, or it may be a polymeric sheet. Such fabrics can be obtained from a number of manufacturers, such as Vetetau, Exhop E1bet8 and Ryshr Ebet8. Preferably, the fabric is woven or non-woven polypropylene.

The polymer in the melt-bonded mixture may contain any number of thermoplastic polymers, thermoset polymers, elastomeric polymers, or their copolymers. The choice of polymers depends on the desired release rate, the compatibility of the polymer with the insecticide, and the surrounding conditions. By way of example, and not with a view to limiting the scope of the present invention, the following polymers can be used: high density polyethylene, low density polyethylene, vinyl acetate, urethane, polyester, santoprene, silicone, or neoprene. However, preferred polymers are high density polyethylene and low density polyethylene. Although the above insecticides can be used for best results, ideally the insecticide should contain chlorpyrifos.

A mixture of polymer and insecticide can be placed on the spun from the melt polymer sheet material in spots. These spots should be located in space so as to adequately maintain the amount of insecticide above the minimum effective level in the protection zone. The minimum effective level is the least amount of insecticide needed in the area in order to prevent insect invasion. The spots 21 in FIG. 1 and 3-5 are preferably about 0.5-1.5 cm in diameter and about 0.5-1.5 cm high. The size and shape of the spots depends on the preference of the user and can be coordinated with the work intended by the buyer. Spots 21 may be arranged in rows with an interval between the spots, preferably from about 1.5 to 4 cm from the adjacent spots. It will be understood by those skilled in the art that, depending on the particular application, other staining locations may also be used. The insecticide releasing polymer sheet is placed near or around the wooden structure to create a protective zone with controlled release of the insecticide.

The second embodiment of the controlled release of the invention also uses a carrier polymer system for the controlled release of an insecticide, comprising a melt spun polymer sheet material 20 and a physical melt bound mixture of polymer and insecticide. As a first option, the polymeric sheet material 20 may be either woven or non-woven polypropylene with which the physical melt bound mixture is bound (shown by ribbons 22 in FIG. 2). Similarly, the polymers and insecticide described with respect to the first embodiment may also be used in the embodiment described in this section. Tapes 22 can be about 1 cm in height and about 5-15 cm to the side. Optimal tape should be placed about 10 cm to the side. It is desirable that the ribbons be placed in such a configuration in order to ensure the steady-state concentration of the insecticide in the protection zone after the initial release of the insecticide. After the tapes are applied to the polymer sheet, the sheet is placed on or near a wooden structure that is protected from insects.

Binder filler and / or carriers can also be included in all variants of the invention. The inclusion of a binder filler and / or carrier allows you to increase the number of insecticides for a given release rate or allow a lower release rate for a given amount of pesticide. Binder carrier binds the pesticide. Binder carriers for binding a pesticide have been found to include carbonaceous carriers, for example, carbon black, activated carbon, and combinations thereof. Alumina, silica-aluminate, hydroxyapatite, and combinations thereof are believed to be comparable to carbon to bind bioactive chemicals.

When a carbon-containing carrier is used, the first step is to ensure the dryness of the carbon, followed by mixing the insecticide in liquid form with carbon. Only a sufficient amount of carbon black (filler) is used to obtain a free-flowing mixture. The term “free flowing” means sufficiently dry or non-adherent free flowing particles. Some pesticides can heat up to achieve a liquid form. The liquid insecticide adheres or binds to an extremely large surface area of finely divided carbon black, and the mixture is cooled for incorporation into the polymer. Polymers that can be used in carbon applications are polyethylene, polypropylene, copolymers or mixtures of polyethylene and polypropylene, polybutylene, epoxy polymers, polyamides, acrylate-styrene-acrylonitrile, aromatic or unsaturated polyethers, polyurethanes, silicones or any other relevant polymers or their copolymers.

The carbon-insecticidal mixture in the first and second embodiments (or even an insecticide if carbon is not used) is then mixed with a polymer, preferably polyurethane, either in the melt, or in a powder, or in a liquid state. This mixture is then bound to the polymeric sheet material. In the first and second embodiments of the invention, the polymer and the insecticide are melt-bonded with the polymeric sheet material.

Another way to bind a mixture of polymer and insecticide with a polymeric sheet material is through injection molding, the technology of which is known in the art. In through injection molding, molten material is injected from a hot nozzle through a porous web into a mold. The molten material flows through the canvas under pressure and solidifies in the mold. When molten material is injected, the porous canvas allows air to escape, but also leaves the molten mass under pressure until it cools.

Another way of bonding a mixture of polymer and insecticide with a polymer sheet material is to place the molten mixture of polymer and insecticide on a spun polymer melt sheet material. If the mixture is molten, it should be allowed to cool, cure, and solidify. As used further, the term molten mixture of polymer and insecticide means that the polymer is either in the molten or already in the liquid state. The insecticide can also be melted or contained in a suspension solution, depending on its melting point. The molten mixture of polymer and insecticide may also contain carbon or other additives that do not melt, but flow with the molten polymer / insecticide mass.

The first and second embodiments of the invention provide release rates sufficient to maintain the effective concentration of the insecticide in the protective zone to kill or repel insects, but at sufficiently slow speeds to maintain the effective concentration for an extended period of time.

In General, the preferred composition for the first and second variants of the invention contains from about 70 to 95 wt.h. polymer carrier, from about 0 to 15 wt.h. carbon and from about 5 to 30 wt.h. insecticide. Considerations for developing controlled release devices vary according to factors such as user preference and geographic conditions. The steady-state release rate of the polymer feed system of these two options after the initial release of the insecticide can be maintained for at least 6 years as a barrier to insects such as ants and termites. However, the equilibrium concentration of this option can be easily adjusted according to the specific needs of each user.

Optionally, the variants shown in FIG. 1-5 may contain a pesticide-impermeable sheet (not shown), such as a metallized film. Metallized film or extruded polymer sheet is laminated to one side of a spun polymeric sheet material to direct the flow of the insecticide.

Another embodiment of the present invention is a sheet of impenetrable pest barrier in which a bonded bulk mixture of a bioactive chemical, or pesticide, with a carbon carrier is placed in a polymer and does not substantially show the release of the bioactive chemical. Lack substantially release is defined as a release rate less than 0.4 mg / cm ^2/24 hours, preferably less than 0.1 g / cm ^2/24 hours and most preferably less than 0.05 g / cm ^2/24 hours. This option covers a release rate of 0.0 or lower defined limits. In this embodiment, the pests are frightened off by sniffing or scratching the polymer surface and determining the presence of a pest-damaging bioactive chemical. The service life of the barrier is much longer than that of the high-speed barrier. In addition, a crack or hole in the polymer will be less prone to leakage of the bioactive chemical. However, two or more layers of this embodiment may be preferable to maintain a complete barrier. Numerous layers may allow a hole or hole in one layer, but the pest will not pass the second or subsequent next layer. It may be desirable to additionally place a protective layer, such as a coarse canvas, on one or both sides of the barrier layer to avoid tearing.

Immediately after receiving the carrier polymer feed systems of the first and second variants are placed near the structure that needs protection from insects. FIG. 3-5 show various uses of leaf variants with either stains or ribbons of the invention.

The configuration of FIG. 1 is shown in FIG. 35, but it is clear that the configuration of FIG. 2 or other configurations may also work.

FIG. 3 carrier-polymer feed system 1 is placed under and next to the concrete base 23 of the wooden structure 100, with the creation of a protective zone 10 to protect the structure from termites, ants and other wood-borne insects.

FIG. 4 carrier-polymer feed system 2 is placed under the structural element 24, such as a porch, patio, footpath or basement, in addition to the wooden structure 101, to create a protective zone 10.

FIG. 5, the carrier-polymer feed system 3 is placed on top and on the sides of the concrete base 23 of the wooden structure 102, but under the wooden part 25 of the structure to create a protective zone.

Another embodiment of the invention is shown in FIG. 6 and 7. This embodiment relates to extrudates, such as extruded flexible cylinders 26 and extruded elastic flat tapes 27, shown respectively in FIG. 6 and FIG. 7. A wide range of polymers can be used, which can be classified into four broad subgroups. Groups include thermoplastic polymers, thermoset polymers, elastomeric polymers, and copolymers of the three groups mentioned above. By way of example, some of the four groups of polymers that can be used are high density polyethylene, low density polyethylene, EVA, vinyl acetate, urethane, polyester, santoprene, silicone, neoprene, and polyisoprene. The preferred insecticide is chlorpyrifos, although the insecticides described above can be used. A filler may also be added.

The cylinders preferably have a size ranging from about 5 to 15 mm in diameter, but most preferably about 10 mm in diameter for optimum stable supply of the insecticide to the protective zone. Flat tapes should preferably have a thickness of about 1 to 6 mm and a width of about 5 to 15 mm. However, it should be noted that both cylinders and flat belts can be designed to meet various conditions encountered by the user.

In general, in order to maintain an equilibrium concentration of the pesticide in the protective zone for an extended period of time, the composition of this embodiment of the invention should contain from about 70 to about 95 wt.h. polymer, from about 0 to about 30 wt.h. carbon and from about 5 to about 30 wt.h. pesticide. The extrudable composition may, however, be tailored to the specific requirements of the user. It is estimated that the protection zone can be maintained for at least 6 years for a cylinder and similarly for flat tapes.

Extrudates can be located in different positions to create protective zones. FIG. 8 shows the method of using the extrudate shown in FIG. 6. One or more flexible cylinders 26 are placed between the concrete base 23 ′ and the wooden part 25 ′ of the structure. Flexible cylinders 26 release the insecticide at a controlled rate, creating a protective zone. The advantage of this configuration is that the flexible cylinders 26 can be placed under a structure that has already been built. Similarly, in a non-illustrated manner, flexible cylinders can be placed vertically in the ground as opposed to horizontal arrangement. As will be understood by those skilled in the art, extrudates may have other appropriate shapes and be placed in any appropriate position, depending on the intended specific use.

FIG. 9 shows a method of using extruded elastic flat tapes shown in FIG. 7. One or more elastic flat tapes 27 create a protective zone, being placed between and next to the concrete base 23 and the wooden part 25 of the structure. Flexible flat tapes 27 can also be placed vertically next to a wall in a variant not shown in the drawings. Any suitable arrangement of flat strips is considered to be included in the scope of the invention.

The controlled release of the insecticide can also be easily achieved by using tablets, as shown in the embodiments shown in FIG. 10-13. Tablet 13 contains a polymer, an insecticide and, preferably, also includes a filler. In this embodiment, various polymers can be used. They may contain polymers of four subgroups consisting of thermoplastic polymers, thermoset polymers, elastomeric polymers and their copolymers. The choice of polymer from these four subgroups depends on the design considerations, and the preferred polymer is either high density polyethylene or low density polyethylene. In turn, the insecticide preferably contains Tefluthrin, but the following insecticides can also be used: isofenphos, fenvalerate, cypermethrin, permethrin and other pyrethrins. For optimum results, a carrier such as carbon may also be introduced into the mixture.

Tablet 31 releases the insecticide at a controlled rate for an extended period of time to form a protective zone. Composition for such a tablet, necessary to maintain the zone in the soil, contains from about 70 to about 95 wt.h. polymer, from about 0 to about 30 wt.h. carbon black and from about 5 to about 30 wt.h. insecticide. Ultimately, the compositions of the tablets depend on the preference of the user.

Tablets can be of any convenient size depending on the purpose of use, for example, 1-25 mm in diameter (or width and thickness, if rectangular) 2-20 cm or more in length. In addition, in order to meet specific user requirements, tablet size and insecticide concentrations can be easily changed. However, the protection zone may be maintained for at least 6 years.

In addition, tablets 31 have the advantage that they can be conveniently placed almost anywhere. The tablets of this embodiment of the invention are shown in FIG. 10. A tablet 31 is inserted near the wooden structure 25. As shown in FIG. 10, the tablets may be placed under the cement base 23 ', or they may be placed directly under the wooden structure (not shown) so as to create an area 10 surrounding the wooden structure 25' to prevent insects that could damage such structures. FIG. 11 shows a cross-section of the tablets 31 introduced onto the surface 40.

Tablets are easily used for a wide range of applications. FIG. 12 shows tablets sprayed 50 onto the surface of a concrete structure 40. FIG. 15 illustrates surface treatment by placing tablets 33 on preformed panels 300.

Tablets 32 are applied to a surface 40, such as a primer or concrete, by means of foam 41, as shown in FIG. 13. Tablets are first introduced into the foam in a manner known in the art. Then foam 41 containing small tablets is sprayed with foam 50, as shown in FIG. 12, to the surface 41 using a mechanized sprayer 70 so as to create a protective coating on the surface. Tablets 32 then release the insecticide, creating a protective barrier in the ground to protect the wood from harmful insects. For best results, foam 50 consists of polyurethane. Silicone, polyester or polyvinyl acetate can also be used. Tablets 32 may vary in size depending on the thickness of the foam and the desired concentration of insecticide in the protective zone. The thickness of the foam applied to the surface may vary according to the user's preference. The protection zone can be maintained for at least 6 years. In addition to using insecticide as a carrier, foam also cures cement and acts as an insulator.

A preformed panel with embedded tablets 33 can also be used as an embodiment of the present invention, as shown in FIG. 14. This panel can be made of any type of material that can hold tablets respectively. 33. Preferably, the panel consists of styrene, which is registered as a trademark of Ωο \ ν. The panel can be used in any way and can work as an insulating device. One application is shown in FIG. 15, where the panel 300 with the tablets 33 is located above the concrete surface 42. The closed tablets are arranged at regular intervals, with the interval being determined by the developed quantity of insecticide.

In another embodiment, as shown in FIG. 16 and 17, a controlled release device containing a polymer matrix and an insecticide may be applied by melt. This option is intended for processing structures already in place. As stated above, the polymer matrix may contain any of the four abovementioned polymer groups. Similarly, any of the above insecticides can be used. However, it is preferable to use high or low density polyethylene with any pyrethrin. Although they are customized for use, the concentrations of various substances in the melt application should be in the range of from about 70 to about 95 for the polymer, from about 5 to about 30 for the insecticide, and from about 0 to about 30 for the filler / carrier for optimal results.

FIG. 16 shows how the melt 50 is injected by the syringe 400 into the soil near the concrete base 43. The concrete structure 43 supports the wooden structure 250. FIG. 17 shows the interval between the melt 50, which has already been injected into the ground.

In another embodiment of FIG. 18 and 19 illustrate the use of an insecticide to fumigate the structure 500. When the controlled release device is injected or placed at or near the structure that can be fumigated, the insecticide released from the controlled release device can evaporate, thus fumigating the structure. FIG. 18 illustrates the use of plugs 34 for fumigating a structure 500 made of building blocks 502. Similarly, in FIG. 19 illustrates a method for using a controlled release device when using a drill 800 to drill a hole 700 in a cement slab 900. Immediately after insertion, the stopper may fumigate the structure.

A modern preferred embodiment of the present invention, as shown in FIG. 20 combines a first polymer 200, a medium or high density polymer containing an insecticide with a low vapor pressure, with a second low density polymer 200 containing an insecticide, more volatile, instead of a higher vapor pressure. High, medium and low density are terms that are well known in polymer engineering with respect to the degree of crosslinking in a polymer. High vapor pressure is defined as vapor pressure above about 1 MPa and, preferably, in the range from about 10 MPa to about 100 MPa. Low vapor pressure is defined as a pressure below 1 MPa and preferably in the range of from about 0.05 MPa to about 0.5 MPa. The first polymer 200 preferably has a thickness in the range of about 0.765 to 3.175 mm. The low vapor pressure insecticide is preferably permethrin or lambdacygalothrin. The preferred material of the first polymer 200 is selected from polyurethane, high density polyethylene and polypropylene. The second polymer 202 is placed adjacent and, preferably, is attached to the first polymer 200. Preferably, the first polymer 200 is water and radon-tight. Hence, the first polymer 200 is preferably a sheet, which may be a film or spun from the melt. According to the present invention, the first polymer 200 may consist of two parts with one sub part 204 of a permeable polymer of medium or high density, containing an insecticide with a low vapor pressure, and the other sub part 206 of an impermeable layer that does not contain an insecticide. The impermeable layer has an advantage in circulation in that the fitter’s exposure / contact with the bioactive chemical substance is prevented or reduced. The impermeable layer may be, for example, mylar, saran, or saranax.

The second polymer 202 is a low density polymer, preferably ethylene vinyl acetate, low density polyethylene, or a mixture thereof. The more volatile, or high vapor pressure, insecticide placed in the second polymer is preferably synthetic pyrethruad, such as tefluthrin.

The second polymer 202 may be in the form of tablets, as previously described, and the first and second polymers are activated with the first polymer under the threshold on the base and the second polymer scattered in the soil adjacent to the base. More preferably, the second polymer 202 is in the form of an open mesh, either woven or non-woven, as shown. Mesh openings can vary upon contact, but do not close to about 645-2580 mm ² and ribs 208 having a cross-section width from about 0.025 mm to about 3.175 mm. A coarse canvas can be used as a mesh, which can be made of polyethylene, polypropylene or polyester. With a sheet of first polymer 200 and an open mesh of second polymer 202, the device of the combination of the first and second polymers 200 and 202 is preferably placed below the ground line. The first polymer sheet 200 is placed adjacent to the open mesh of the second polymer 202, and the first polymer sheet 200 is in contact with or near the base 43 and between the base and the open mesh of the second polymer 202. The mesh material can absorb the bioactive chemical and serve as a reservoir of bioactive material.

In operation, the first polymer 200 maintains a physical / chemical barrier against insect invasion. However, due to the slow release of the first polymer 200, very little insecticide is released, which allows you to create a protective zone for about the first year after installation. In addition, it is possible to establish a barrier free from defects due to breakdowns, for example, electrical, and when leaded, and due to breakdowns or tears during the construction process. Accordingly, the second polymer 202 is commissioned to create a protective zone several days after installation, therefore preventing insects from entering through the defects of the first polymer 200. The first polymer 200 therefore performs three functions: an insect barrier, a vapor / moisture barrier, and a radon barrier. The first polymer 200 is intended to serve at least 10 years and, preferably, up to and more than 20 years. The second polymer 202 is intended to last at least 5 years, and preferably up to about 10 years. By the time the second polymer 202 is depleted and no longer effective against insects, the first polymer 200 will create a concentration of the released insecticide sufficient to maintain the protection zone.

The following examples are given in order of explanation. As such, these examples are not intended to limit the scope of the invention as defined by the appended claims.

Example 1. Conduct experiments to determine the rate of release of chlorpyrifos. The degree of content of the insecticide is equal to either 5% by weight or 10% by weight, depending on the polymer. The release rates for all devices are determined at 50 ° C.

Test polymers include low melting polyethylene, polyurethane, two epoxides, silicone rubber, and low melting polyethylene in waxes to reduce the thermal decomposition of chlorpyrifos. Research has shown that excessive thermal decomposition of chlorpyrifos is observed at temperatures in excess of approximately 240 ° C; Thus, the choice of polymer is limited to formulations that do not require excessive temperature processing.

In tab. I summarizes the results of these studies. In general, the compatibility of the polymer with chlorpyrifos is not a problem with the degrees of filling used. There is some loss of physical integrity of the polyurethane polymer used, however, other polymer systems do not show visible degradation at 50 ° C. The release rates are in the range from 10 micrograms / ^cm2 / 24 hours for the silicone rubber to 0.3 ug / ^cm2 / 24h for epoxide V.

Using the data given in table. I can calculate the durability of the product. Taking the weight of the device 0.5 g with 10% filling, then there is 50 mg of chlorpyrifos for release. Thus, for a polymer system having an area of 4 cm ² and the release rate of 1 g / cm ² / 24h, there is sufficient insecticide for periods of 30 years at the test temperature. These calculations show that a number of products can be valid.

Table I. Polymeric formulations and release rates for test systems using chlorpyrifos

Polymer Chlorpyrifos content (%) The release rate (mcg / ^cm2 / 24h) ^a) Polyurethane five 2.1 ± 1.4 ^b) Epoxide A five less than 0.1 Silicone five 10.3 ± 3.5 Urethane ten 1.0 ± 0.3 Epoxide B ten 0.3 ± 0.1 PE + wax ten 1.9 ± 0.3

^a) Release rates determined at 50 ° C.

^b) Material showed severe cracking at elevated temperature.

Example 2

Studies conducted with the same polymer systems as in example 1, but with 80% pure pyrethrin. The release rates at 40 ° C are given in table. Ii.

Table II. Polymer formulations and release rates for test systems using pyrethrin I

Polymer The content of pyrethrin I (%) The release rate (mcg / ^cm2 / 24h) ^a) Epoxide A ten 0.5 ± 0.2 Silicone ten 21.2 ± 5.4 Urethane ten 15.7 ± 7.1 Epoxide B ten 0.2 ± 0.1

^a) Release rates determined at 40 ° C.

The release rates are highest for urethane and silicone and lowest for epoxides. There is a significant difference in release rates, and appropriate binders are required for testing.

Based on the data in Table II, simple calculations can be made to determine the possible lifetime of insecticidal systems. As stated in example 1, there are many parameters that can change the life of the protection zone.

Example 3. Controlled-release devices are made and tested to obtain release rates. For all thermoplastic polymers, formulations with 10% pesticide, 3-7% carbon black to absorb liquid pesticide and 83-87% by weight of polymer are obtained and processed by injection molding into thin sheets of about 3.175 mm thick. In particular, the devices are made of thermoplastic polymers and deltamethrin and lambdacygalothrin with a content of 3% carbon black. Devices made from the remaining pesticides and thermoplastic polymers contain 7% carbon black.

Devices made from urethane 8113 (thermosetting polymer) are made from a polymer blend containing 60% 8113, 40% castor oil and 5% catalyst by weight. The polymer mixture is 90% of the total mass of the device. Deltamethrin pesticide accounts for the remaining 10% of the device. This device does not use carbon black. The pesticide / polymer blend is cast into a 3.175 mm thick sheet and heated at about 60 ° C for about 40-60 minutes to cure the cast sheet. Squares of 645 mm ^{2 are} cut from thin sheets that have been injection molded or cast, and are tested for their release rate. The following release rates are obtained.

Pesticide Polymer The release rate (mcg / ^cm2 / 24h) Deltamethrin Urethane 8-113 25.2 Aromatics 80A 16.8 2102-80A pellet 8,8 Pelletan 2102-551) 8.0 Ayrtye Ρ8-49-100 7.2 Cypermethrin Polyurethane 3100 0.4 Polyurethane 2200 0.7 EVA 763 27.3 Polyethylene MA 778-000 4.6 Lambdacygalotrin Polyurethane 3100 0.4 Polyurethane 2200 0.7 EVA 763 27.3 Polyethylene MA 778-000 4.6 Tefluthrin Polyurethane 3100 6.4 Polyurethane 2200 25.0 EVA 763 40.4 Polyethylene MA 778-000 27.0 Permethrin Polyurethane 3100 1.4 Polyurethane 2200 1,3 EVA 763 28.5 Polyethylene MA 778-000 4.0

Example 4. Conduct an experiment to determine the effect of the concentration of lambdacygalotrina (pyrethruad) and the combination insecticide / polymer on the rate of release of the insecticide from the polymer. The data are summarized in table. Iv.

Table IV. The release rate for combinations of

limer / pyrethruad Polymer Concentration of pyrethruad (% May.) The release rate (mcg / ^cm2 / 24h) Ethyl Vinyl Acetate (EVA) one 0.3 five 2.2 ten 2.5 Polyurethane one 0.9 five 4.4 ten 8.3 Polyurethane / EVA (50/50) one 2.6 five 7.2 ten 9.1

Example 5

Conduct an experiment to determine the effectiveness of the protective zone against termites. For testing, two types of termites were chosen: termites (termites, yellow-footed), because they are the most common, and termites, Hornxis, and tertiaries, (termites), because they are the most aggressive.

Test cells are harvested with glass containers. Wooden chips are placed on the bottom of the containers. The insecticidal impregnated polymer is placed on top of the wooden shavings in such a way that there is no passage or hole on top of the impregnated polymer to the wooden chips. Above the impregnated polymer, a feed-free conveyor is placed. The conveyor surface is the zero level, and the impregnated polymer is installed at a distance of 5 cm below the conveyor surface. Termites are placed on the surface of the conveyor, and their movement through the conveyor to the impregnated polymer is observed every day.

The combinations of impregnated polymer are shown in table. Wah

Table Ou. The release rate for 10 wt.% Pyrethruad

Polymer Pyrethruad The release rate (mcg / ^cm2 / 24h) Ethyl Vinyl Acetate Permethrin 3.9 Ethyl Vinyl Acetate Tefluthrin 4.3 Ethyl Vinyl Acetate Tefluthrin (2% wt. Fatty acid) 3.2 Polyethylene Permethrin 1.4 Polyethylene Tefluthrin 2.2 Polyethylene Tefluthrin (2% wt. Fatty acid) 2.0

Control samples that do not have pyrethruad in the polymer barrier are also used. The results are shown in FIG. 21 and FIG. 22. In all control tests, termites quickly penetrate the polymer and gain access to wood chips. The rate of passage through ethyl vinyl acetate is slower than for polyethylene. There is no penetration in all impregnated polymers. Because Bovine termites are so aggressive, they come closer to the impregnated polymer than the less aggressive yellow-faced termites. Indeed, polyethylene with permethrin has traces of the jaws of the Rohkapap-termites, but does not have holes or biting. In about 12-14 days, even in Rohtokap-termites, the hunt is repulsed when the insecticide is released and re-processed from the impregnated polymer.

Example 6. Conduct an experiment to demonstrate the effect of binding media on the rate of release. The active chemicals are tefluthrin and lambdacygalothrin in an amount of 5 wt.%, Carbon black in quantities of 0 and 10 wt.% Is the binding carrier, and the rest up to 100 wt.% Is high-density polyethylene (MA 778-000). The release rates are determined 6 weeks after manufacturing, and weekly samples are wiped to remove surface accumulation of the released active chemical.

The results are shown in Table. U1.

Table VI. The release rate for 0 wt.% And wt.% Carbon black

Active chemical Carbon black (wt.%) The release rate (mcg / ^cm2 / 24h) Tefluthrin 0 3.13 Tefluthrin ten 0.71 Lambdacygalotrin 0 1.78 Lambdacygalotrin ten 0.81 Lambdacygalotrin 20 0.61

From the above description, the specialist can easily establish the main features of the present invention and, without changing the essence and scope of the invention, can make changes and modifications as necessary. It is intended that the scope of the invention be defined by the following claims, including all equivalents defining the invention.

Claims (51)

CLAIM 1. A barrier to prevent pests from entering a zone, structure, or space containing a polymer and a pesticide located in the specified polymer forming a polymer matrix, with the pesticide present in an amount sufficient to prevent the pest from overcoming the barrier. 2. The barrier of claim 1, wherein the pesticide is not substantially released from the barrier. 3. The barrier according to claim 1, in which the pesticide is present on the surface of the polymer matrix in an amount sufficient to prevent the pest from overcoming the barrier. 4. The barrier according to claim 1, in which the polymer is hydrophobic. 5. The barrier according to claim 2, further comprising a binding carrier associated with the pesticide to reduce the rate of its release, in which the pesticide is not substantially released from the barrier. 6. The barrier according to claim 5, wherein the binding carrier is selected from the group consisting of carbon black, activated carbon, alumina, silica alumina, hydroxyapatite, and combinations thereof. 7. The barrier according to claim 5, in which the specified number of binding carrier is at least 3 wt.% Matrix. 8. The barrier according to claim 7, in which the matrix is in the form of a sheet. 9. The barrier according to claim 2, further comprising one or more additional layers selected from coarse canvas, mesh, sheet, and combinations thereof. 10. The barrier according to claim 9, in which at least one additional layer is a sheet made of polymer. 11. The barrier according to claim 9, in which at least one additional layer is a sheet made of Mylar, saran, or saranx. 12. Barrier in claim 11, in which the pesticide contains lambdacygalothrin. 13. The barrier of item 12, in which the polymer is a low density polyethylene. 14. The barrier according to claim 7, in which the pesticide is bound to the carrier and the particles of the bound pesticide are embedded in the matrix. 15. The barrier of claim 1, wherein the pesticide is selected from the group consisting of isofenphos, fenvalerate, cypermethrin, permethrin, pyrethrin, lambdacygalothrin, cyfluthrin, deltamethrin, and combinations thereof. 16. The barrier of claim 1, wherein the polymer is selected from the group consisting of high density polyethylene, low density polyethylene, vinyl acetate, urethane, polyester, santopren, neoprene, polyethylene, polypropylene, polybutylene, epoxy polymers, polyamides, acrylate-styrene- acrylonitrile, aromatic polyesters, unsaturated polyesters, polyurethanes, silicones and their copolymers. 17. The barrier of claim 1, wherein the polymer is selected from the group consisting of high density polyethylene, low density polyethylene, vinyl acetate, urethane, polyester, santopren, silicone, and neoprene. 18. The barrier according to claim 1, in which the specified amount of pesticide is at least 1 wt.% Matrix. 19. The barrier according to item 13, in which the specified amount of pesticide is at least 1 wt.% Matrix. 20. The barrier according to claim 1, further comprising a second pesticide, which is a high volatility pesticide, in the second polymer, which is a low density polymer. 21. The barrier according to claim 1, in which the matrix is in the form of a tape, sheet or tablet. 22. The barrier of claim 1, wherein the barrier has at least one pest impermeable layer. 23. A method of creating a barrier to prevent pests from entering a zone, structure, or space, comprising the steps of: a) the introduction of the pesticide into the polymer; b) forming a polymeric matrix containing a pesticide and c) forming a barrier in which the pesticide is present in the matrix in an amount sufficient to prevent the pest from overcoming the barrier. 24. The method of claim 23, further comprising the step of binding the pesticide to the binding carrier prior to the molding step. 25. The method of claim 23, wherein the step of introducing comprises melting the polymer. 26. The method according to claim 24, wherein the pesticide binds to the binding carrier so that the pesticide is not substantially released from the barrier. 27. The method according to p. 26, in which the binding includes a step of mixing the pesticide in liquid form with a binding carrier. 28. The method according to p, in which the specified amount of pesticide is at least 1 wt.% Matrix. 29. The method according to claim 27, wherein the binding carrier is selected from the group consisting of carbon black, activated carbon, alumina, silica alumina, hydroxyapatite, and combinations thereof. 30. The method according to claim 27, wherein the amount of binding carrier is at least 3% by weight of the matrix. 31. The method of claim 23, wherein the pesticide is selected from the group consisting of isofenphos, fenvalerate, cypermethrin, permethrin, pyrethrin, tefluthrin, lambdacygalothrin, cyfluthrin, deltamethrin, and combinations thereof. 32. The method according to claim 23, wherein the polymer is selected from the group consisting of high density polyethylene, low density polyethylene, vinyl acetate, urethane, polyester, santoprene, neoprene, polyethylene, polypropylene, polybutylene, epoxy polymers, polyamides, acrylate styrene- acrylonitrile, aromatic polyesters, unsaturated polyesters, polyurethanes, silicones and their copolymers. 33. The method according to claim 23, wherein the pesticide is a low volatility pesticide and the polymer has a high or medium density. 34. The method according to claim 23, further comprising the step of mixing the second pesticide, which is a high volatility pesticide, with the second polymer, which is a low density polymer. 35. The method according to item 23, in which the pesticide is lambdacygalothrin. 36. The method according to p, in which the polymer is low density polyethylene. 37. The method of claim 25, wherein the barrier further comprises a second pesticide, which is a high volatility pesticide, in the second polymer, which is a low density polymer. 38. A method of preventing the penetration of crawling or soil-carrying insects to ensure the long-term protection of the soil zone, structure or space from the invasion of these insects, comprising the following stages: a) placing a controlled release barrier at possible insect entry points at the entrance to said zone, structure or space, the barrier has an outer surface and contains a polymer and a pesticide, in which the pesticide is located in the specified polymer, and the polymer forms a polymer matrix; and b) release of the pesticide from the polymer matrix at a rate sufficient to repel, frighten or kill insects that come into contact with the pesticide to protect the specified area, structure or space from the invasion of said crawling and soil-transferring insects. 39. The method of Claim 38, wherein the pesticide is not substantially released on the outer surface of the barrier. 40. The method of claim 38, further comprising the step of releasing the pesticide on the outer surface of the barrier. 41. The method of claim 38, wherein the rate of release of the pesticide from the polymer matrix is not less than 10 g / cm ^2/24 hours. 42. The method according to clause 38, in which the pesticide is released from the polymer matrix with accumulation on the surface of the barrier with controlled release. 43. The method of claim 38, wherein the polymer is selected from the group consisting of silicones, ethylene vinyl acetate, urethanes, polyurethanes, polyethylenes, acrylonitrile, butadiene, acrylate rubber, isoprene, and vinyl styrene rubber. 44. The method of claim 38, further comprising the step of binding the pesticide to a binding carrier prior to introducing said pesticide into the polymer matrix to reduce the rate of release of the pesticide from the polymer matrix. 45. The method according to claim 44, in which the binding carrier is selected from the group consisting of carbon black, activated carbon, alumina, silicoaluminate, hydroxyapatite, and combinations thereof. 46. The method of claim 38, further comprising the step of molding the polymer matrix into a tape, sheet, or tablet. 47. The method according to item 44, in which the concentration of the binding carrier is from about 2 to about 7% by weight of the total polymer matrix. 48. The method according to clause 38, in which the concentration of the pesticide is from about 2 to about 15% of the total weight of the polymer matrix. 49. The method of claim 38, wherein the pesticide is selected from the group consisting of deltamethrin, cypermethrin, lambdacygalothrin, tefluthrin, permethrin, and combinations thereof. 50. The method according to claim 38, wherein the pesticide is lambdacygalothrin and the polymer is low density polyethylene. 51. The method of claim 38, wherein the barrier has an outer surface comprising at least one layer that is impermeable to insect pests.