JPS645001B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a paste-like composition for capturing small organisms. Specifically, the present invention relates to a paste-like composition for capturing small organisms consisting of (A) polybutene, (B) a rubbery organic polymer compound, (C) an emulsifier, and (D) water. The damage caused by small creatures, especially rodents, is enormous. Among them, rats can eat through not only agricultural products and food, but also lead pipes, causing gas to leak out.
It may expose the power lines and cause a fire. Several methods have been proposed and implemented to exterminate these small organisms, but the simplest method is to apply a sticky trap to a surface such as cardboard, cardboard, or plastic board. There is a method of applying it to a coating material and placing it in the path of small organisms. In this case, the capture agent must not only be easy to apply and have excellent adhesive properties, but also because it is often used in places where food is handled, such as restaurants and grocery stores. It is required to be non-toxic to the human body. As a composition for capturing small organisms of this type, for example, Japanese Patent Publication No. 48-16617 discloses a composition consisting of 86% polybutene, 10% butyl rubber, and 4% paraffin as an anti-sag agent; No. 125123/1983 and Japanese Patent Publication No. 125123/1989, a composition consisting of 80 parts of polybutene, 10 parts of butyl rubber, and 40 parts of rosin, silica gel, and polyethylene in total.
No. 18586 contains 2 to 40 parts by weight of organic bentonite or 0.5 to 8 parts by weight of colloidal silica to 100 parts by weight of polyisobutene (viscosity of 1000 poise at 50°C) or an 80:20 mixture of polyisobutene and natural rubber. JP-A-52-128225 discloses a composition comprising 100 to 700 parts by weight of polybutene with a molecular weight of 12,000 or less and 100 to 600 parts by weight of a natural or synthetic resin with a softening point of 70 to 100°C;
JP-A No. 52-98161 contains 5% by weight of butyl rubber,
A composition comprising 35% by weight of polybutene and a total of 60% by weight of rosin ester, toluene, and xylene is disclosed. However, none of these examples satisfy all of the above requirements. In particular, if you try to improve the capture ability by increasing the adhesive strength, the viscosity will increase, which will reduce coating workability, and after coating, the capture agent attached to your hands or spatula may be difficult to remove, or it may be difficult to remove it. There was a problem in that a solvent had to be used. An object of the present invention is to provide a composition for capturing small organisms that meets the above-mentioned demands and solves the above-mentioned problems. The object of the present invention is to (A) produce polybutene having a number average molecular weight of 200 to 2500;
60 to 85% by weight, (B) 0.5 to 30% by weight of a rubbery organic polymer compound dissolved in the polybutene and having a viscosity average molecular weight of 10,000 to 2,500,000 by Flory method, (C) 1 to 35% by weight of an emulsifier, and ( D) Achieved by a pasty composition for trapping small organisms consisting of 6-38% by weight of water. Hereinafter, the paste composition for capturing small organisms according to the present invention will be described in more detail. In the present invention, (A) polybutene means a number average molecular weight
200 to 2500, preferably 300 to 2000, more preferably 500 to 1000, for example, by polymerizing a part of the butane-butene fraction excluding butadiene among the so-called C ₄ fraction produced by naphtha cracking. It can be manufactured by These polybutenes are commercially available, for example, from Nippon Petrochemicals Co., Ltd. under the trade name Nisseki Polybutene. If the molecular weight of the polybutene is smaller than this range, the fluidity of the composition may become excessive after coating and drying, causing it to protrude from the material being coated. Also, the flash point will be low, so it should not be used in places with open flames such as kitchens. The safety when doing so is reduced. If it is larger than this range, the compatibility with the rubbery organic polymer compound (B) will decrease and the viscosity will become too large, making it impossible to perform smooth mixing operations during the production of the composition. Since the initial adhesive strength is reduced, the ability to capture small organisms is also reduced. The rubbery organic polymer compound (B) in the present invention is
Dissolved in the polybutene (A), and preferably has a viscosity average molecular weight of 10,000 to 2,500,000 according to the Flory method.
200000 to 2000000. These rubbery organic polymer compounds include polyisobutylene, butyl rubber, natural rubber, polyisoprene rubber, styrene-butadiene rubber, butadiene rubber,
Examples include ethylene propylene terpolymer, styrene butadiene block copolymer, and styrene isoprene block copolymer. Rubber-like organic polymer compounds having polarity, such as chloroprene rubber and nitrile rubber, are not preferred because they have insufficient compatibility with polybutene. Particularly preferred compounds among these are polyisobutylene and butyl rubber. If the molecular weight of the rubbery organic polymer compound is smaller than the above range, the adhesiveness will be insufficient and the ability to capture small organisms will be reduced. On the other hand, if it is larger than this range, it takes time to dissolve the polybutene and the viscosity becomes extremely high, making it difficult to mix smoothly. As the emulsifier (C) in the present invention, known ones such as nonionic surfactants, anionic surfactants, or cationic surfactants can be used. Examples of nonionic surfactants include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenol ether, polyoxyethylene fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, oxyethylene oxypropylene block polymer, or these. Examples include mixtures of the following. In addition, as anionic surfactants, fatty acid salts,
Alkyl sulfate salt, alkylbenzene sulfonate, alkylnaphthalene sulfonate, dialkyl sulfosuccinate salt, alkyl phosphate salt, naphthalene sulfonate formalin condensate, polyoxyethylene alkyl sulfate salt, polyoxyethylene alkyl Examples include phosphoric acid esters, phosphoric acid ester salts, and mixtures thereof such as phenol ether and polyoxyethylene fatty acid ester. Furthermore, examples of cationic surfactants include alkylamine salts, quaternary ammonium salts, and polyoxyethylene alkylamines. Among these, nonionic surfactants such as polyoxyethylene alkyl phenol ether and polyoxyethylene fatty acid ester are particularly preferred. The blending ratio of each component in the present invention is (A) polybutene 60 to 85% by weight, preferably 70 to 80% by weight, (B)
rubbery organic polymer compound 0.5 to 30% by weight, preferably 1 to 20% by weight, (C) emulsifier 1 to 35% by weight, preferably 2 to 30% by weight, and (D) water 6 to 38% by weight,
Preferably it is 10 to 30% by weight. Since the composition of the present invention having the above-mentioned blending ratio is in the form of a paste, it has excellent application workability, and even if it adheres to hands or spatulas, it is easy to remove, and it is sufficient to rinse it off with water. On the other hand, after a certain period of time has elapsed after application, the moisture disappears and the adhesive becomes sticky enough to capture small organisms. In the present invention, the composition excluding water, i.e.
The viscosity of the mixture of components (A) to (C) at 30℃
It is preferably 30,000 cP or more, particularly 50,000 cP or more. If the viscosity is lower than this range, the ability to capture small organisms will be reduced. If the viscosity of the mixture of components (A) to (C) is high, add an aliphatic or aromatic volatile solvent during mixing and stirring, and remove the solvent after making a paste or applying it to the material to be coated. can be removed. In the present invention, even if the compound or composition has the above-mentioned viscosity range, a preferable capture agent cannot be obtained if the individual components do not have the structure and molecular weight defined in the present invention. The composition of the present invention can be used as it is for capturing small organisms, but depending on the usage, it may be added with a tackifying resin, an inorganic or organic filler such as silica, etc.
It is also possible to use organic bentonite, finely powdered silica, etc., or by adding a coloring agent or a small organism attractant. In addition, in order to prevent the capture agent from protruding or exuding from the material being coated, dibenzylidene sorbitol and/or tribenzylidene sorbitol is added at a ratio of 0.01 to 5% by weight based on the composition excluding water. You can also. Furthermore, since the composition of the present invention does not have a specific odor, it will not be repelled by mice and will not inhibit the effect of the attractant. The composition of the present invention can also be used to capture small harmful organisms such as cockroaches in addition to rats. When using the composition of the present invention, in addition to directly applying it to the material to be coated of an appropriate size,
It can be used by coating on base materials of various shapes and structures. The present invention will be explained in more detail below using Examples and Comparative Examples. In addition, in evaluating the performance of the composition, adhesive strength and mouse-capturing ability were tested using the following method. Adhesive strength: Based on the probe tack method, using a tensile tester, the contact surface with the adhesive surface is brought into contact with a 1/2 inch steel ball for 60 seconds, and the stress (g) required to peel off the steel ball is measured. did. Mouse-capturing ability: The composition was applied to a 1-mm-thick cardboard to a thickness of 1 mm, placed in a passageway for mice, and the trapping ability was observed. Example 1 As shown in the table, (A) polybutene with a number average molecular weight of 900 and (B) polyisobutylene with a viscosity average molecular weight of 1200000 as a rubbery organic polymer compound by the Flory method were mixed with stirring at 150°C, and the temperature was lowered.
After lowering the temperature to 90°C, (C) polyoxyethylene nonylphenol ether was added as an emulsifier and stirred.
Water was added dropwise little by little to obtain a paste composition with a solid content of 81% by weight. When this composition was applied to a 1 mm thick cardboard using a spatula to a thickness of 1 to 1.5 mm, it was found to be extremely easy to apply. In addition, the container used for mixing the composition, the stirring device, and the spatula used for application could be easily wiped off with paper or cloth, and tap water was sufficient for subsequent cleaning. Furthermore, after the water was evaporated, it showed sufficient adhesive strength and also showed excellent results in a mouse trapping test. Examples 2 to 4 As shown in the table, paste compositions were produced in the same manner as in Example 1 and evaluated. The results are also shown in the table. All of the compositions had excellent coating properties, and also exhibited excellent adhesive strength and mouse-capturing ability. Comparative Example 1 Comparative Example 1 shown in the table is a composition that uses components (A) and (B) of the present invention but does not emulsify them. This composition is a sticky, highly viscous product, and although it exhibits sufficient adhesive strength after application, the threads tend to break easily when removed from the mixing container with a spatula during the manufacturing process, and the surrounding area and workers I got my hands extremely dirty. Furthermore, even if I tried to apply it to cardboard using the same method as in Example 1, I was unable to spread it to a certain thickness, and in order to remove the composition that had adhered to the mixing container, spatula, its surroundings, hands, etc. It required a lot of organic solvent and labor, and was difficult to handle. Comparative Example 2 Comparative Example 2 shown in the table is a composition emulsified without using component (B) of the present invention, and although it has excellent coating properties, it has poor adhesive strength and mouse trapping ability after coating. It was enough.

[Table] Note: In the table, ◎ means extremely good, △ means somewhat good, and × means poor.

Claims (1)

[Scope of Claims] 1 (A) 60 to 85% by weight of polybutene having a number average molecular weight of 200 to 2,500; (B) a rubbery organic polymer dissolved in the polybutene and having a viscosity average molecular weight of 10,000 to 2,500,000 by Flory method; A paste composition for capturing small organisms, comprising 0.5 to 30% by weight of a compound, (C) 1 to 35% by weight of an emulsifier, and (D) 6 to 38% by weight of water. 2. The paste composition for capturing small organisms according to claim 1, wherein the rubbery organic polymer compound (B) is polyisobutylene and/or butyl rubber having a viscosity average molecular weight of 200,000 to 2,000,000. thing. 3. For capturing small organisms according to claim 1 or 2, wherein the amount of the rubbery organic polymer compound (B) is 1 to 20% by weight based on the entire composition. Pasty composition.