JP4863229B2 - Small organism capture material - Google Patents

Description

  The present invention relates to a capture material suitable for capturing various small organisms having different weights such as mice.

  Exterminating harmful small organisms such as rats, cockroaches and flies is an important issue from the viewpoint of improving the living environment. The damage caused by rodents is especially enormous. Among them, rats can eat not only agricultural products and food, but also lead to gas leaks by breaching the lead pipes, and can cause fires by galling the power lines. Several methods for extermination of these small organisms have been proposed and implemented, but the simplest of them is a sticky capture agent such as cardboard, cardboard, wood board, plastic film, There is a method in which it is applied to a material to be applied such as a sheet and installed in a passage for small organisms. In this case, it is necessary to satisfy the requirement that the capture agent is excellent in application workability and adhesiveness. In addition, when pre-applied to the material to be coated, the trapping agent flows out of the material to be coated during storage or use, or permeates and oozes out the material to be coated, making it unusable. There should be no such things as becoming dirty or soiling the floor.

  As this kind of small organism capturing agent, for example, a composition comprising 86% polybutene, 10% butyl rubber and 4% paraffin as an anti-sagging agent (Patent Document 1), 80 parts polybutene, 10 parts butyl rubber and rosin, silica gel, polyethylene A composition comprising 40 parts in total (Patent Document 2), polyisobutene (viscosity at 50 ° C. is 1000 poise) or 100 parts by weight of an 80:20 mixture of polyisobutene and natural rubber, 2-40 parts by weight of organic bentonite or colloidal, respectively A composition comprising 0.5 to 8 parts by mass of silica (Patent Documents 3 and 4), a composition comprising 5% by mass of butyl rubber, 35% by mass of polybutene, and 60% by mass of rosin ester, toluene, and xylene. Patent document 5) etc. are disclosed. Further, a composition comprising 80% by mass of polybutene, 16% by mass of butyl rubber and 4% by mass of polyethylene (Patent Document 6), a mixture of two kinds of liquid polybutenes having different molecular weights, 80 to 98% by mass, and a viscosity average molecular weight of 100 A composition comprising 1 to 10% by mass of 10,000 to 2.5 million polyisobutylene rubber and 1 to 10% by mass of high-pressure polyethylene having specific properties is disclosed (Patent Document 7).

However, none of these examples meet all of the above requirements. Specifically, in a composition using paraffin wax, the addition of a small amount is not sufficient to prevent the flow-out, whereas if an excessive amount is added, the wax content of the adhesive layer increases with time after application. Since it moves to the surface and reduces the adhesive force, the capture ability is significantly reduced. In the composition using expensive organic bentonite or silica, it is relatively good in terms of prevention of flow-out and adhesive strength. However, these powders are bulky and involve air during mixing, and defoamed after mixing. This is not preferable from the viewpoint of labor and cost during production.
Further, a composition comprising butyl rubber, polybutene, rosin ester, toluene, and xylene has a problem of odor because it uses a volatile aromatic solvent. Furthermore, the problem is that the coating film coated with the adhesive composition is installed for capturing small organisms, the solvent is volatilized over a long period of time, the coating film is cured, and the capturing ability is lowered. Further, a composition comprising polybutene, butyl rubber and polyethylene cannot satisfy both the tackiness of the tacky composition and the workability during the coating operation.
Moreover, although the thing using polyisobutylene rubber currently disclosed by Unexamined-Japanese-Patent No. 2007-177104 is excellent in adhesive force, since the molecular weight of polyisobutylene rubber is very large, it will take time to melt | dissolve in polybutene. Has drawbacks. In addition, since the target rodents are adults with relatively large weights, such as black rats and red rats, it is difficult to capture the small-sized black rats and red rats, and may escape.

Japanese Patent Publication No. 48-16617 JP-A-52-105217 JP 51-125123 A Japanese Patent Publication No.53-18586 JP 52-98161 A Japanese Examined Patent Publication No. 2-57521 JP 2007-177104 A

  An object of the present invention is to provide a small organism capture material that can effectively capture various harmful small organisms having different weights. As a result of diligent research to solve such problems, the present inventors applied various types of small organisms having different weights by applying two types of adhesive compositions having different adhesive properties to the same surface of the application surface. Has been found to be effectively captured, and the present invention has been completed.

That is, the first of the present invention is (A) a pressure-sensitive adhesive composition comprising polybutene, polyisobutylene rubber, polyethylene having physical properties of a maximum stress of 200 to 400 gf / cm ² and a yarn distance of 100 mm or more, and (B ) Small organisms in which an adhesive composition composed of polybutene, polyisobutylene rubber, and polyethylene having a physical property value exceeding the maximum adhesive stress of 400 gf / cm ² and a yarn distance of 40 to less than 100 mm is applied to the same surface of the material to be coated It is a capture material.
A second aspect of the present invention is the material for capturing small organisms according to the first aspect of the present invention, wherein (A) and (B) are alternately applied in the horizontal direction on the same surface of the material to be coated. is there.
The third aspect of the present invention is for capturing small organisms according to the first aspect of the present invention, wherein (A) is the upper layer and (B) is the lower layer, and the same surface of the material to be coated is overcoated. Material.
A fourth aspect of the present invention is the material for capturing small organisms according to the second aspect of the present invention, wherein the coating width of (A) is 5 to 20 mm and the coating width of (B) is 5 to 20 mm.
A fifth aspect of the present invention is the material for capturing small organisms according to the third aspect of the present invention, wherein the coating thickness of (A) is 0.5 mm to 2 mm and the coating thickness of (B) is 1 mm or more. It is.
A sixth aspect of the present invention is the material for capturing small organisms according to any one of the first to fifth aspects of the present invention, wherein the material to be coated is plastic.
A seventh aspect of the present invention is the material for capturing small organisms according to the sixth aspect of the present invention, wherein the plastic is a plastic film laminated on cardboard.

  According to the present invention, in the small-animal capture material, by applying the adhesive compositions (A) and (B) that place importance on the initial adhesive strength (wetting property) on the same surface of the material to be applied, It can provide materials for capturing small organisms that can be effectively captured, from rodents of light-weight cubs that were not completely captured to rodents of heavy-weight adults.

It is an example of the top view of the material which apply | coated the adhesion composition (A) and (B) of this invention in parallel. It is an example of the side view of the material which apply | coated the adhesive composition (A) and (B) of this invention in parallel. It is an example of the top view of the material which apply | coated the adhesive composition (A) and (B) of this invention to concentric form. It is an example of the side view of the material which applied the adhesive composition (A) and (B) of this invention repeatedly.

Hereinafter, the present invention will be described in more detail.
Adhesive composition (A) used in the present invention is composed of polybutene, polyisobutylene rubber, and polyethylene, and has physical property values of an adhesive maximum stress of 200 to 400 gf / cm ² , preferably 250 to 350 gf / cm ² , and a yarn drawing distance of 100 mm or more. Is. It should be noted that the maximum stress of adhesion represents the force that keeps catching small organisms attached to the adhesive composition without escaping, and the yarn drawing distance is the wettability of the adhesive composition, that is, against the small organisms of the adhesive composition. It shows adhesiveness.

The pressure-sensitive adhesive composition (A) is suitable for capturing rodents of cubs having a small weight, and is a pressure-sensitive adhesive that emphasizes wettability. When the maximum adhesive stress is less than 200 gf / cm ² , the adhesive strength is too weak, and even a rodent of a cub with a small weight may escape after being attached once. When the maximum adhesive stress exceeds 400 gf / cm ² , the adhesion to small organisms once attached is strong, but the wettability of the adhesive composition is poor. There is a possibility that it may escape without sticking, which is not preferable. In addition, there is a possibility that the tackiness cannot be exhibited even for extremely light weights such as cockroaches and flies.
Since the wettability of the pressure-sensitive adhesive composition deteriorates when the spinning distance is less than 100 mm, rodents of light-weight cubs are not captured and escape.

The pressure-sensitive adhesive composition (B) is made of polybutene, polyisobutylene rubber, and polyethylene, and has physical property values of a maximum stress of over 400 gf / cm ^{2 and} a spinning distance of 40 to less than 100 mm. This pressure-sensitive adhesive composition is intended to capture adult rodents having a large body weight, and is a pressure-sensitive adhesive composition that emphasizes the adhesive strength, that is, the maximum stress of adhesion. When the adhesive maximum stress is 400 gf / cm ² or less, the adhesive strength is too weak, and adult rodents with high physical strength may escape once attached to the adhesive composition (B).
On the other hand, if the spinning distance is less than 40 mm, the wetness of the pressure-sensitive adhesive composition is extremely poor, and even adult rodents with large weights may not be captured and may escape. In addition, when the spinning distance is 100 mm or more, the adhesive composition has a low maximum adhesion stress, and even adult rodents that have once adhered have a high physical strength and may escape.
In addition, although the upper limit with preferable adhesive maximum stress is not specifically limited, If it exceeds 1200 gf / cm < ² >, the adhesive composition will become remarkably small in wettability, and the adhesiveness with respect to a small organism will fall remarkably, and is not preferable.

In the material for capturing small organisms of the present invention, the adhesive compositions (A) and (B) must be applied to the same surface of the material to be applied. As the application method, a method of alternately applying in the horizontal direction of the surface to be applied, or a method of applying in a vertical direction of the surface to be applied can be raised.
When the adhesive compositions (A) and (B) are alternately applied in the horizontal direction of the surface to be applied, the preferred application width is 5 to 20 mm for both (A) and (B).
1, 2 and 3 are examples of specific modes in the case where (A) and (B) are alternately applied in the horizontal direction of the surface to be coated. FIG. 1 is a top view of a case where (A) and (B) are alternately applied in parallel to a planar surface to be coated. FIG. 2 is a view of the coated product corresponding to FIG. 1 as viewed from the side. Black paint shows (A), and gray paint shows (B). FIG. 3 is a top view of (A) and (B) applied alternately on a flat surface to be coated in a concentric manner.

Light weight when capturing small organisms such as mice using the small organism capture material of the present invention prepared by alternately applying the adhesive compositions (A) and (B) in the horizontal direction of the surface to be coated In order to ensure that the rodents of larvae are attached to part (A), and adult rodents with heavy weight and strength are attached to part (B). The coating width of (A) and (B) is preferably 20 mm or less.
When the application width of (A) and (B) exceeds 20 mm, the width is too wide, so that the rodents of light weight cubs are only in the (B) part, and the weight of adults with heavy weight and high physical strength. A situation occurs in which the teeth are attached only to the portion (A). In this case, the attached small creatures may escape without being caught by sticking. On the other hand, when the coating width of (A) and (B) is less than 5 mm, (A) and (B) may be melted together, and the respective performances of (A) and (B) may not be exhibited. Moreover, the application | coating operation | work to the to-be-coated material surface becomes difficult.
When (A) and (B) are applied in parallel, they may be applied so that (A) and (B) are in contact with each other, or may be applied with a gap. When a gap is made, the gap is preferably 10 mm or less at maximum. If the gap exceeds 10 mm, there is a risk that the small creature with a large weight attached to (A) first escapes before attaching to (B). On the other hand, there is a risk that the small creature with the low weight attached to (B) first escapes before attaching to (A).

When the adhesive compositions (A) and (B) are applied on the surface to be applied, (B) is applied to the lower layer, (B) is applied, and (A) is applied. In this case, the coating thickness of (A) is preferably 0.5 to 2 mm, and the coating thickness of (B) is preferably 1 mm or more. FIG. 4 is a view showing an example of a state where the adhesive compositions (A) and (B) are applied to the surface to be applied.
When the coating thickness of (A) is less than 0.5 mm, the wettability effect of (A) cannot be exhibited, and even the rodents of cubs escape. In addition, if it exceeds 2 mm, even if adult rodents with large body weight and large physical strength adhere, the attached portion does not reach the lower layer (B), and the adhesive force of (B) cannot be exhibited. Therefore, there is a risk of running away. When the thickness of the lower layer of (B) is less than 1 mm, the adhesive strength is too weak and the adult rodents escape.

  The liquid polybutene used in the present invention needs to have a number average molecular weight of 200 to 2000, preferably 400 to 1500. This liquid polybutene can be produced, for example, by polymerizing a butane-butene fraction excluding butadiene in a so-called C4 fraction produced by naphtha decomposition. These polybutenes are commercially available, for example, under the trade name of Nisseki Polybutene (manufactured by Shin Nippon Oil Co., Ltd.). When the molecular weight of polybutene is less than 200, the flash point becomes low, so there is a problem in safety when the present adhesive composition is produced or when it is used in a fire place such as a cooking place. Since the adhesive force of the obtained adhesive composition falls, it is not preferable. On the other hand, if it is greater than 1500, the melt viscosity of the composition becomes too high, making smooth application work difficult.

  The polyisobutylene rubber used in the present invention has a viscosity average molecular weight of 1,000,000 to 2,500,000. When the viscosity average molecular weight is 1,000,000 or less, the adhesive strength is lowered. If it exceeds 2.5 million, it takes time to dissolve, and the viscosity of the pressure-sensitive adhesive becomes high, making application difficult.

  The polyethylene used in the present invention is a polymer obtained by polymerizing ethylene in a high pressure polymerization method, and is generally called high pressure method polyethylene, and has a melt index of 0.04 to 35, preferably 0.1 to 20. These high-pressure polyethylene can be obtained, for example, under the trade name Novatec LJ600 (Nippon Polyethylene Co., Ltd.). Those having a melt index smaller than 0.04 require high temperature and a long time for dissolution in liquid polybutene, and those having a melt index larger than this range have good tackiness and are sufficient for preventing the trapping agent from flowing out and preventing bleeding. Nothing can be obtained.

  In preparing the pressure-sensitive adhesive compositions (A) and (B) used in the present invention, liquid polybutene, Polyisobutylene rubber and high-pressure polyethylene are blended at an appropriate ratio, and the preferred blend ratio is as follows.

  That is, the blending ratio of the liquid polybutene is preferably 92 to 98% by mass, more preferably 93 to 97% by mass with respect to the entire composition. If the blending ratio is less than 92% by mass, the wettability of the adhesive composition is lowered. Moreover, the extensibility of a coating film falls and it exists in the tendency which is inferior to coating processability, such as the production | generation of the unevenness | corrugation of a surface. On the other hand, when it is more than 98% by mass, the flow resistance of the coating film tends to be inferior.

  The blending ratio of the polyisobutylene rubber is preferably from 0.3 to 3.0% by mass, more preferably from 0.5 to 2.5% by mass, based on the entire composition. When the blending ratio is less than 0.3% by mass, the capture ability for adult animals having a large body weight decreases. On the other hand, if it is larger than 3.0% by mass, the wettability of the adhesive composition is lowered.

  The blending ratio of the high-pressure polyethylene is preferably 2.0 to 6.0 mass%, more preferably 3.0 to 5.0 mass%, based on the entire composition. When the blending ratio is less than 2.0% by mass, the flow resistance of the coating film is poor. On the other hand, when the content is larger than 6.0% by mass, the coating film formability is deteriorated and the processability of the coating film is inferior, such as generation of surface irregularities.

  The pressure-sensitive adhesive compositions (A) and (B) used in the present invention can be produced by melt-kneading each component. The method of melt kneading is not particularly limited, and can be performed using a known method. For example, a method of forcibly stirring using a kneader can be used under a temperature condition in which the components (A) and (B) melt. When the pressure-sensitive adhesive compositions (A) and (B) are alternately applied to the material to be coated in a streaky form and overcoated on the upper and lower layers, a known method can be used.

  Since the adhesive compositions (A) and (B) used in the present invention do not use an organic solvent and do not have a specific odor, rodents are not repelled and the effect of the attractant is not hindered. . Further, since a bulky filler such as bentonite or silica is not used, there is no problem of causing foaming during the kneading operation and making it difficult to continue the manufacturing operation. In addition, the adhesive composition used in the present invention is a process oil, animal and vegetable oil, a polymer plasticizer, a softener, a colorant, an antioxidant, as necessary, in addition to the above essential constituents, as long as the required performance is not impaired Agents, anti-aging agents, fragrances, attractants, feeds and the like can be appropriately blended.

The small organism capturing material of the present invention is obtained by applying the adhesive compositions (A) and (B) to the surface of the material to be coated. However, the material to be coated is not particularly limited as long as it is planar. Absent. For example, a sheet made of a plastic such as polyethylene or polypropylene can be used. These plastic sheets can also be used which are laminated on a base such as cardboard.
The small-animal capture material of the present invention is effective for capturing rodent small organisms such as rats and adults such as mice, but also other harmful small organisms such as squirrels, flies, and flying pests. Can also be used for capture.

  EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples.

<Preparation of adhesive composition>
Adhesive compositions (A), (A-1), (A-2), adhesive compositions (B), (B-1), (B-2) were blended according to the blending ratio shown in Table 1. Prepared. The preparation method is as follows. That is, polyisobutylene rubber, polyethylene, and an antioxidant were added to liquid polybutene heated to 170 ° C. and stirred until each component was uniformly dissolved. Among these, the adhesive compositions (A) and (B) are the adhesive compositions used in the present invention, and (A-1), (A-2), (B-1), and (B-2) are comparative. It is the adhesive composition used for an example.
The liquid polybutene, polyisobutylene rubber and polyethylene used are as follows.
Liquid polybutene: Nippon Oil Corporation, Nisseki Polybutene HV-300, number average molecular weight 1400
Polyisobutylene rubber; manufactured by BASF, Opanol B-100, viscosity average molecular weight 1.3 million polyethylene; manufactured by Nippon Polyethylene, Novatec LJ-600, MFR 5.5, density 0.93

<Evaluation of physical properties of adhesive composition>
Adhesion maximum stress: According to the probe tack method, a metal ball having a diameter of 1/4 inch and a weight of 15.3 g is brought into contact with the adhesive applied to the coated surface, and the force required to pull the metal ball away from the coated surface is 23. It measured with the tensile tester in ° C. Adhesive maximum stress affects the capture performance of adult rodents.
Spinning distance: According to the probe tack method, when the adhesive applied to the coated surface is brought into contact with a metal ball having a diameter of 1/4 inch and a weight of 15.3 g, and the metal ball is pulled away from the coated surface, the adhesive is the metal ball. The distance away from was measured at 23 ° C. with a tensile tester. The spinning distance represents the wettability of the pressure-sensitive adhesive and affects the capture performance of rodents in cubs.
The results are shown in Table 1.

<Creation of test piece for capturing performance evaluation in Examples and Comparative Examples>
Sample preparation with alternately applied in parallel: on a board (21 x 16 x 0.1 cm thick) laminated with a polypropylene film on a cardboard, with a gap of 5 mm as an uncoated part, a coating thickness of 2 mm, long Each of the adhesive compositions (A) and (B) was applied in a straight line with a predetermined application width of 17 cm, and used as a sample for capturing performance evaluation used in Examples and Comparative Examples. In Comparative Example 1 and Comparative Example 2, only (A) or (B) was applied as an uncoated portion, and two stripes were applied across a 5 mm gap to obtain a sample for capturing performance evaluation.
Preparation of sample for overcoating application: Adhesive composition (B) in a predetermined area of 17 × 13 cm in width on a board (length 21 × width 16 × thickness 0.1 cm) laminated with a polypropylene film on cardboard After applying to the coating thickness, it was allowed to stand for about 1 hour, and the adhesive composition (A) was applied onto the adhesive composition (B) to obtain a sample for capturing performance evaluation.

<Evaluation of capture performance>
Rodent capture force (20 g, 100 g steel ball): A mount on which the adhesive composition is applied is placed on a table with an inclination angle of 30 °, and the steel ball is rolled from a position where the running distance is 10 cm. When a 20 g steel ball was rolled, when the steel ball stopped on the adhesive surface or rolled slowly after the stop, it was rated as ○ because it had the ability to capture 20 g of rodents. Further, when the steel ball rolls and falls on the adhesive surface, it was marked as x because there was no force to capture 20 g of rodents.
When rolling a 100 g steel ball, the steel ball stops on the adhesive surface, or when it rolls slowly after the stop, it is marked as ○ because it has the ability to capture 100 g of rodents. Further, when the steel ball rolls and falls on the adhesive surface without stopping, it was evaluated as x because there was no force to capture 100 g of rodents. In the case of a sample applied alternately in parallel, the rolling direction of the steel ball and the application direction of the adhesive composition are perpendicular so that the steel ball passes over both of the adhesive compositions (A) and (B). A sample coated in parallel was placed so that
The results are shown in Tables 2 and 3.

Table 2 shows that the adhesive compositions (A) and (B) were alternately applied to a planar coated surface. Examples 1 to 3 were tested by applying the adhesive compositions (A) and (B) according to the conditions of the present invention, for both adult rodents and juvenile rodents. Also showed excellent capture performance. In Comparative Example 1 and Comparative Example 2, only one of the pressure-sensitive adhesive compositions (A) or (B) was applied with a width of 10 mm. In Comparative Example 1 in which only the adhesive composition (B) was applied, the ability to capture adult rodents was recognized, but there was no ability to capture rodent rodents, only the adhesive composition (A). In Comparative Example 2 to which the application was applied, the capture ability of rodents of cubs was recognized, but there was no capture ability of rodents of adult animals.
Comparative Examples 3 to 4 were tested using an adhesive composition having a physical property value in which the maximum stress and the yarn drawing distance deviated from the conditions of the present invention were prepared by changing the composition of the adhesive composition (A). . As a result, the capture performance for adult animals was good, but there was no capture ability for young animals. Comparative Examples 5 to 6 were tested using an adhesive composition having a physical property value in which the maximum stress and the yarn drawing distance deviated from the conditions of the present invention were prepared by changing the composition of the adhesive composition (B). . As a result, the capture performance for cubs was good, but there was no capture ability for adult animals.

Table 3 shows the results obtained by coating the adhesive compositions (A) and (B) on a flat surface to be coated and testing them.
Examples 6-7 were tested by applying the adhesive compositions (A) and (B) according to the conditions of the present invention, for both adult rodents and juvenile rodents. Also showed excellent capture performance. In Comparative Examples 7 and 8, only one of the pressure-sensitive adhesive compositions (A) and (B) was applied. In Comparative Example 7 in which only the adhesive composition (B) was applied, capture power was observed for adult rodents, but there was no capture power for juvenile rodents. On the other hand, in Comparative Example 8 in which only the adhesive composition (A) was applied, the capturing ability of the cubs to the rodents was recognized, but the capturing ability of the adult animals to the rodents was not.
Comparative Examples 9 to 10 are the results of testing using a pressure-sensitive adhesive composition prepared by changing the composition of the pressure-sensitive adhesive composition (A) and having properties that the maximum stress and the yarn drawing distance deviate from the conditions of the present invention. is there. As a result, the capture performance for adult animals was good, but there was no capture ability for young animals.
Comparative Examples 11 to 12 were tested using an adhesive composition having the property that the maximum stress and the yarn drawing distance prepared by changing the composition of the adhesive composition (B) deviated from the conditions of the present invention. is there. As a result, the capture performance for cubs was good, but there was no capture ability for adult animals.

  The small organism capture material of the present invention exhibits excellent capture performance for both small and heavy organisms. Therefore, by using the capture material of the present invention, a wide range of objects from young animals to adult animals can be captured with a single type of capture material.

Claims (7)

(A) Adhesive composition comprising polybutene, polyisobutylene rubber, polyethylene having physical properties of a maximum adhesion stress of 200 to 400 gf / cm ² and a spinning distance of 100 mm or more, and (B) a maximum adhesion stress of 400 gf / cm ^2. A material for capturing small organisms, wherein an adhesive composition composed of polybutene, polyisobutylene rubber, and polyethylene having a physical property value exceeding 40 to 100 mm is applied to the same surface of the material to be coated.   The material for capturing small organisms according to claim 1, wherein (A) and (B) are alternately applied in the horizontal direction on the same surface of the material to be coated.   The material for capturing small organisms according to claim 1, wherein (A) is an upper layer and (B) is a lower layer, and the material is coated on the same surface.   The material for capturing small organisms according to claim 2, wherein the coating width of (A) is 5 to 20 mm, and the coating width of (B) is 5 to 20 mm.   The material for capturing small organisms according to claim 3, wherein the coating thickness of (A) is 0.5 to 2 mm, and the coating thickness of (B) is 1 mm or more.   The material for capturing small organisms according to any one of claims 1 to 5, wherein the material to be coated is plastic.   The material for capturing small organisms according to claim 6, wherein the plastic is a plastic film laminated on cardboard.

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