JP2003335603A - Noxious insect-exterminating resin molded material and collar for animal by using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a noxious insect-exterminating resin molded material capable of retaining a noxious insect-exterminating effect for a long time and also having flexibility. <P>SOLUTION: The noxious insect-exterminating resin molded material contains a 1,2-polybutadiene resin and a vaporizable noxious insect-exterminating component. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pest-controlling resin molding containing a transpirationable pest-controlling component, and an animal collar using the pest-controlling resin molding.

[0002]

2. Description of the Related Art Generally, a resin molding containing a transpirationable pest controlling component is widely used for the purpose of controlling harmful insects, and for example, animal collars made of the resin molded body are known. The resin molded product containing these transpirationable insect pest control components is a transpiration of the transpirationable pest control component and / or the bleeding of the transpirationable pest control component to the surface of the molded product, so-called bleeding to gradually release the pest control component from the molded product. It is used in a wide range of fields as a substance that exerts the effect of exterminating pests over a long period of time.

Most of the pest-controlling resin moldings used at present use a polyvinyl chloride resin containing a halogen atom (specifically, chlorine) as a base resin. However, in recent years, in consideration of the environment and the like, it has been desired to use a resin containing no chlorine atom, in place of the polyvinyl chloride resin, as a molded product for consumer use such as a collar for animals.

Therefore, in order to solve the above problems, a pest-controlling resin molded article containing an ethylene-vinyl acetate copolymer, which is a polyolefin resin having a polar group, as a base resin has been conventionally used. Therefore, animal collars and the like made of such pest-controlling resin moldings are commercially available.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
A pest-controlling resin molded product using a polyolefin resin having a polar group such as a vinyl acetate copolymer as a base resin has inferior practicability as compared with a molded product using a polyvinyl chloride resin as a base resin. . Specifically, for example, a pest control resin molded product using a polyolefin-based resin having a polar group as a base resin is harder than a molded product using a polyvinyl chloride resin as a base resin, and has, for example, flexibility. It is difficult to use for required applications such as animal collars. Further, the pest-controlling resin molding using a polyolefin-based resin having a polar group as the base resin has a high transpiration rate of the transpirationable pest-controlling component, and the pest-controlling effect cannot be maintained for a long time. .

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is a pest-controlling resin molding and an animal collar which are highly flexible and can maintain the pest-controlling effect for a long time. To provide.

[0007]

In order to solve the above-mentioned problems, the pest-controlling resin molding of the present invention contains a 1,2-polybutadiene resin and a pest-controlling effective amount of a transpiration-controlling pest-controlling component. It is characterized by becoming.

Since the pest-controlling resin molded article having the above-mentioned constitution contains the 1,2-polybutadiene resin as the base resin, it is different from the conventional pest-controlling resin molding containing the polyvinyl chloride resin as the base resin. It can have equivalent flexibility. Further, since 1,2-polybutadiene resin has less adverse effect on the environment than polyvinyl chloride resin, the pest-controlling resin molding of the present invention can be preferably used. Furthermore, since the pest-controlling resin molded product of the present invention contains 1,2-polybutadiene resin as the base resin, it evaporates more than the molded product containing the polyolefin resin having a polar group as the base resin. It is possible to suppress the transpiration of the pest-controlling component, and to exert the pest-controlling effect for a long time. Therefore, the pest-controlling resin molding of the present invention can be suitably used for applications such as animal collars.

The pest control resin molding of the present invention further comprises
It is more preferable that the transpirational pest controlling component is at least one of eucalyptol and pulegone.

The pest-controlling resin molded article having the above-mentioned constitution contains 1,2-polybutadiene resin as the base resin and at least one of eucalyptol and pulegone as the transpiration-controlling pest-controlling component. By
The pest control effect can be maintained for a long time.

In the pest control resin molding of the present invention,
Further, the 1,2-polybutadiene resin is
It is more preferable that the polybutadiene resin is composed of 1,2-polybutadiene containing 90% or more of the monomer units polymerized by the 1,2 addition reaction in all the monomer units constituting the polybutadiene resin.

In the pest control resin molding of the present invention,
Furthermore, it is more preferable that the monomer unit has a syndiotactic structure.

The pest control resin molding of the present invention further comprises
It is more preferable that the hardness measured with a type A durometer is in the range of 60 to 77 based on JIS K6253.

The animal collar of the present invention is characterized by comprising the above pest-controlling resin molding.

Since the animal collar having the above-mentioned structure is composed of a pest-controlling resin molding containing a 1,2-polybutadiene resin and a transpiration-controlling pest-controlling component, it has excellent flexibility and exhibits a long-term pest-controlling effect. can do.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The following will describe one embodiment of the present invention. The present invention is not limited to this.

The pest-controlling resin molding according to the present embodiment contains a 1,2-polybutadiene resin and a transpirationable pest-controlling component.

The pest control resin molding according to the present embodiment contains 1,2-polybutadiene resin as a base resin. It is more preferable that 90% or more of the monomer units polymerized by the 1,2 addition reaction are contained in all the monomer units constituting the 1,2-polybutadiene resin. 1,
When less than 90% of the monomer units are polymerized by the 2-addition reaction, the transpiration of the volatile pest control component is delayed,
The pest control effect may be insufficient.

The stereoregularity of the 1,2-polybutadiene resin may be atactic, syndiotactic or isotactic, but syndiotactic is more preferable. When the stereoregularity of the 1,2-polybutadiene resin is syndiotactic, it becomes easier to control the transpiration of the transpiration pest control component, and the pest control effect is sufficiently exerted, and its efficacy is Can last for a long time.

Therefore, in the base resin of the pest-controlling resin molded product according to the present embodiment, the 1,2-polybutadiene resin is 1 in all the monomer units constituting the 1,2-polybutadiene resin. It is particularly preferable that the syndiotactic 1,2-polybutadiene containing 90% or more of monomer units polymerized by the .2 addition reaction is used.

The base resin of the pest-controlling resin molding according to the present embodiment may be one or more resins other than 1,2-polybutadiene (unless the intended effect of the present invention is significantly impaired). Hereinafter, referred to as “other resin”) may be included.

Specific examples of the above other resins include:
Examples of the polyolefin resin include high-density polyethylene, low-density polyethylene, linear low-density polyethylene, ultra-low-density polyethylene, polyethylene resin such as a copolymer of ethylene and an α-olefin having 3 or more carbon atoms, and propylene alone. Polymer, random copolymer of propylene and ethylene or α-olefin having 4 or more carbon atoms, polypropylene resin such as block copolymer, ethylene vinyl ester copolymer such as ethylene-vinyl acetate copolymer, ethylene- Acrylic acid copolymer, ethylene-unsaturated carboxylic acid copolymer such as ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-unsaturated carboxylic acid such as ethylene-methyl acrylate copolymer Ethylene copolymer resin such as ester copolymer,
Resins such as polyvinyl alcohol and polyvinyl acetate, 1,
Rubbers such as 4-polybutadiene, polyisoprene, and styrene-butadiene copolymers, polymers of cyclic olefins and hydrogenated products thereof, such as petroleum resin, rosin resin, coumarone-indene resin, and terpene resin can be mentioned. The above-mentioned other resins may be appropriately selected depending on the type of the transpirationable pest-controlling component used and the use of the pest-controlling resin molding.

The mixing ratio of the 1,2-polybutadiene resin and the other resin is not particularly limited as long as the intended effect of the present invention is not significantly impaired.
In order to bring out the effect of the 1,2-polybutadiene resin sufficiently, it is more preferable to add 1,2-polybutadiene resin in an amount of 70% by weight or more of the total amount of the base resin, and 90% by weight or more. It is more preferable to mix such that By setting the amount of the 1,2-polybutadiene resin to 70% by weight or more, more preferably 90% by weight or more of the whole base resin, it is possible to provide a pest-controlling resin molded article having particularly excellent flexibility.

The above-mentioned transpirational pest control component is not particularly limited as long as it has a transpiration property and has a pest control effect.

In the present invention, the transpirationable pest control component means a component which is transpirational and has a pest-killing effect and a pest-repelling effect.

The volatile component means a component having a saturated vapor pressure at 20 ° C. of 1 × 10 ^-6 mmHg or more,
Preferably, the saturated vapor pressure at 20 ° C. is 1 × 10 ⁻⁵ mmHg
1 x 10 ^-2 mmHg or less (1.33 Pa or more 133
0 Pa or less).

Examples of the above-mentioned transpiration harmful insect control component include synthetic pyrethroid compounds, organic phosphorus compounds, carbamate compounds and the like.

Specific examples of the synthetic pyrethroid compound include allethrin and empentrin.

Specific examples of the organic phosphorus compound include phenthion, cyanophos, and diazinon.

Examples of the carbamate compound include methoxadiazone.

Examples of other transpirationable insect pest controlling components include eucalyptol, pulegone, hinoki cypress essential oil, natural pyrethrin and the like.

The pest-controlling resin molded article of the present invention contains at least one transpirationable pest-controlling component, and may contain two or more types of pest-controlling components depending on the desired effect.
For example, the pest-controlling effect can be exerted for a long period of time by incorporating the pest-controlling components having different transpiration rates into the pest-controlling resin molded article. Further, a plurality of types of insects can be exterminated by combining harmful insect exterminating components having different kinds of insects to be exterminated into the pest exterminating resin molding.

Of the above-exemplified transpiration pest control components, eucalyptol and / or pulegone are particularly preferable. 1, the eucalyptus and / or pulegone
By combining with 2-polybutadiene to form a pest-controlling resin molded body, the molded body can be easily manufactured, and
The pest control effect against fleas and the like can be maintained for a long time.

The pest-controlling resin molding according to the present embodiment contains a pest-controlling effective amount, that is, an amount of the transpiration-controlling pest-controlling component necessary for exhibiting the pest-controlling effect, but is preferable. The amount varies depending on the type of transpiration pest control component and the use of the molded body, and the amount of the pest control component in the pest control resin molded body decreases with time as the component evaporates. Of the weight of the base resin,
More preferably within the range of 0.5 to 30%, and 0.5 to 15
The range of% is particularly preferable. By setting the amount of the transpirationable insect pest controlling component within the above range, it is possible to easily produce a pest controlling resin molding capable of exerting the pest controlling effect for a long period of time.

The hardness (hardness) of the pest-controlling resin molding according to the present embodiment is more preferably within the range of 60 to 77, and further preferably within the range of 65 to 75. If the hardness is less than 60 or greater than 77, it may not be suitable for some applications such as animal collars. Therefore, by setting the hardness within the range of 60 to 77, it is possible to obtain a pest-controlling resin molded article having excellent flexibility, and thus it is possible to obtain excellent practicability.

The hardness is a value measured using a type A durometer based on JIS K6253.

The pest-controlling resin molding according to the present embodiment contains other components than the above-mentioned base resin and transpiration-controlling pest-controlling component, such as a filler, an antioxidant and a pigment, if necessary. be able to.

There is no particular limitation on the method of blending the above-mentioned transpirational pest control component into the base resin. In particular,
For example, the raw materials may be mixed using a mixer such as a Banbury mixer or an extruder, and then a pelletized resin composition can be obtained. Further, for example, a powdery resin composition can be obtained by mixing the powdered 1,2-polybutadiene resin with the above-mentioned transpiration harmful insect control component using a super mixer or the like. The method for powdering the 1,2-polybutadiene resin is not particularly limited, either.
For example, a freeze pulverization method can be mentioned.

Specific examples of the method for producing the pest control resin molding according to the present embodiment include injection molding,
It can be easily manufactured by a known molding method such as extrusion molding, press molding or slush (powder) molding.
Further, depending on the purpose of improving the mechanical properties during use of the above-mentioned molded product, increasing the concentration of the surface of the molded product of the transpiration harmful insect-controlling component, or improving the process moldability, as appropriate, multilayer extrusion molding, A composite molded article can be obtained by using various conventionally known methods such as color injection molding, composite spinning, extrusion laminate molding and the like.

The pest-controlling resin molded product according to the present embodiment can be specifically used for, for example, animal collars, animal ear tags, animal medals and the like. Also,
Depending on the above-mentioned application or usage, for example, three-dimensional, flat, processed into various shapes such as rod-shaped, net, fiber,
It can be used after being processed into a shape such as a non-woven fabric, a sheet or a film.

Further, the animal collar according to the present embodiment is constructed by using the pest control resin molded body. Therefore, the pest-controlling resin molding is used for all or part of the animal collar. The shape of the animal collar varies depending on the type of animal to be worn, etc., but the length is 20 to 6
0 cm, width 0.8-1.5 cm, thickness 0.2-0.5c
Those of m can be preferably used.

[0042]

EXAMPLES Example 1 Melt-kneading with a plastograph equipped with a stirrer (circulating oil temperature = 140 ° C.) 1, 2
-Polybutadiene (manufactured by JSR, trade name; RB810) 4
To 8.05 g, a mixed liquid of 0.35 g of eucalyptol and 1.6 g of pulegone was added dropwise, and after completion of the addition, the resin composition was obtained by stirring for 1 minute. The resin composition obtained was press-molded at 140 ° C. to give a length of 7.
A sheet (pest control resin molding) having a size of 5 cm, a width of 5.5 cm and a thickness of 3 mm was obtained.

Then, the residual rate of the pest control component contained in the pest control resin molded article was measured by the following method.

(Measurement of Hardness of Resin Molded Body) The hardness of the resin molded body was measured using a type A durometer according to JIS K6253. For the measurement, two sheets having a thickness of 3 mm were stacked and the hardness was measured 0.5 seconds after the sheets were brought into close contact with each other by a force. The results obtained are shown in Table 1.

(Measurement of residual rate of pest-controlling components) About 1 g of sheet pieces were cut out from a sheet (pest-controlling resin molding) produced by press molding, and further cut into small pieces of about 3 mm square to obtain the obtained small pieces. Were weighed accurately. All the pieces after accurate weighing were put into acetone (about 50 ml), and heated under reflux for 2 hours. The acetone solution after reflux was analyzed by gas chromatography, and the amount (initial amount) of each component in the unit weight of the press-formed sheet was determined from the results.

On the other hand, the press-formed sheet was aged in an oven (40 ° C.) for a predetermined time. Sheet pieces were cut out from the sheet after aging in the same manner as above.
Further, the same treatment and analysis as above were performed to determine the amount (remaining amount) of each component in the unit weight of the sheet after aging. The ratio of "remaining amount" to "initial amount" is "remaining rate"
Is. The obtained results are shown in Table 2.

The conditions of gas chromatography are as follows.

Apparatus: GC-14A (manufactured by Shimadzu Corporation) Column: Thermon 1000 (manufactured by Shinwa Kako Co., Ltd.) Column temperature: 145 ° C. Carrier gas: N ₂ Carrier flow rate: 60 ml / min Internal standard: Trimethyl phosphate Detector: FID [Comparative Example 1] Instead of 1,2-polybutadiene, an ethylene-methyl acrylate copolymer (Sumitomo Chemical, trade name;
A sheet was prepared in the same manner as in Example 1 except that CG4002 and methyl acrylate content 31% by weight) were used, and the residual ratio of each component was measured. The obtained results are shown in Tables 1 and 2.

Example 2 96.1% by weight of 1,2-polybutadiene (same as above) powdered by the freeze pulverization method, 0.7% by weight of eucalyptol, and 3.2% by weight of pulegone were superposed. The mixture was adjusted by mixing with a mixer. Then, by injection molding the resulting mixture,
A 60 cm long, 1 cm wide, 3 mm thick collar for animals (pest control resin molding) was obtained. Then, the residual rate of the pest control agent contained in the animal collar was measured according to the method described in Example 1. The results obtained are shown in Table 3.

[Comparative Example 2] An animal collar was prepared in the same manner as in Example 2 except that a polyvinyl chloride resin (manufactured by Shin Dai-Ichi Vinyl Co., Ltd., trade name: ZEST1000S) was used in place of 1,2-polybutadiene. Then, the residual rate of each component was measured. Further, the hardness was measured in the same manner as in Example 1.

The results obtained are shown in Tables 1, 2 and 3.

[0052]

[Table 1]

[0053]

[Table 2]

[0054]

[Table 3]

From the above results, a pest-controlling resin molding containing 1,2-polybutadiene and a transpirationable pest-controlling component (pest-controlling resin molding of the present invention) is a polyvinyl chloride resin as a base resin. It has the same hardness (flexibility) as compared with the molded product using. Further, the pest control resin molded article, as a base resin, compared with a molded article using a polyolefin-based resin having a polar group, it is possible to suppress the evaporation of transpiration pest control component, pest control effect It turns out that it can be sustained for a long time.

[0056]

As described above, the pest-controlling resin molding of the present invention contains the 1,2-polybutadiene resin and the volatile pest-controlling component.

Therefore, it is possible to have the same flexibility as a molded product using a polyvinyl chloride resin as the base resin. Further, since 1,2-polybutadiene resin has less adverse effect on the environment than polyvinyl chloride resin, the pest-controlling resin molding of the present invention can be preferably used. Furthermore, since the pest-controlling resin molding of the present invention uses 1,2-polybutadiene resin as the base resin,
Compared with a molded product using a polyolefin resin having a polar group as a base resin, transpiration of transpiration harmful pest control components is suppressed, and the pest control effect can be maintained for a long time. Therefore, there is an effect that it can be suitably used for applications such as a collar for animals.

The pest control resin molding of the present invention further comprises
It is more preferable that the transpirational pest controlling component is at least one of eucalyptol and pulegone.

If a 1,2-polybutadiene resin is used as the base resin constituting the pest-controlling resin molded article and at least one of eucalyptol and pulegone is used as the transpiration-penetrating insect-controlling ingredient, the molded article can be produced. It has an effect that it is easy and that the pest control effect against fleas and the like can be maintained for a longer period of time.

The pest control resin molding of the present invention further comprises
The 1,2-polybutadiene resin is 1,2-polybutadiene resin among all the monomer units constituting the 1,2-polybutadiene resin.
More preferably, the composition is composed of 1,2-polybutadiene containing 90% or more of monomer units polymerized by an addition reaction.

The pest control resin molding of the present invention further comprises
More preferably, the stereoregularity of the 1,2-polybutadiene resin is syndiotactic.

The pest control resin molding of the present invention further comprises
It is more preferable that the hardness measured with a type A durometer is in the range of 60 to 77 based on JIS K6253.

The pest control resin molding of the present invention further comprises
The structure used as an animal collar is more preferable.

The animal collar of the present invention comprises the above pest-controlling resin molding.

Since the animal collar comprises a pest-controlling resin molded product containing a 1,2-polybutadiene resin and a transpiration-controlling pest-controlling component, it has little adverse effect on the environment, is excellent in flexibility, and can be used for a long time. The pest control effect of can be exhibited.

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C08L 9/00 C08L 9/00 (72) Inventor Kenzo Hayama 1-28 Kutaro-cho, Chuo-ku, Osaka-shi, Osaka F-term in Kasei Life Tech Co., Ltd. (reference) 4H011 AC01 AC06 BA01 BB05 BB08 BC19 DD07 DF02 DH02 DH18 4J002 AC041 EL086 EW006 FD186 GA00 GC00 GT00

Claims (6)

[Claims] 1. A pest-controlling resin molding comprising a 1,2-polybutadiene resin and a pest-controlling effective amount of a transpiration-controlling pest-controlling component. 2. The pest-controlling resin molding according to claim 1, wherein the transpiration-controlling pest-controlling component is at least one of eucalyptol and pulegone. 3. The 1,2-polybutadiene resin contains 90% or more of monomer units polymerized by a 1,2-addition reaction in all monomer units constituting the 1,2-polybutadiene resin. A pest-controlling resin molding according to claim 1 or 2. 4. The pest-controlling resin molded article according to claim 3, wherein the stereoregularity of the 1,2-polybutadiene resin is syndiotactic. 5. A type A according to JIS K6253
The pest-controlling resin molded article according to any one of claims 1 to 4, wherein the hardness measured by using a durometer is in the range of 60 to 77. 6. A collar for animals, comprising the pest-controlling resin molding according to any one of claims 1 to 5.