JPS6354682B2 - - Google Patents

Description

[Detailed description of the invention]

FIELD OF THE INVENTION This invention relates to improved small organism trap compositions. Specifically, an improved small organism comprising (A) polybutene, (B) dibenzylidene sorbitol and/or tribenzylidene sorbitol, and further containing (C) a rubbery organic polymer compound as required. The present invention relates to a capture agent composition. 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 use sticky trapping agents on cardboard, cardboard, wooden boards, plastic film, etc. There is a method of applying it to a material such as a sheet and installing it in the path of small organisms. In this case, the capture agent must satisfy the requirements that it must have excellent coating workability and excellent adhesiveness. Furthermore, after application, the scavenger must not run out of the material to be coated or penetrate the material and ooze out, contaminating the floor. 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-sagging agent; No. 125123/1983 and Japanese Patent Publication No. 125123/1983, a composition consisting of 80 parts of polybutene, 10 parts of butyl rubber, and a total of 40 parts of rosin, silica gel, and polyethylene.
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. A composition comprising 100 to 700 parts by weight of polyisobutene 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 52-128225 discloses No. 98161 discloses a composition comprising 5% by weight of butyl rubber, 35% by weight of polybutene, and 60% by weight of rosin ester, toluene, and xylene. However, none of these examples satisfies all of the above requirements. Specifically, in compositions using paraffin wax, if a small amount is added, the flow-out prevention effect is not sufficient, but if a sufficient amount is added, the wax content will be absorbed into the adhesive layer over time after application. It migrates to the surface and reduces its adhesion, significantly reducing its capture ability.
In compositions using organic bentonite or silica, a considerably large amount must be added in order to obtain a sufficient run-off prevention effect, which is undesirable from the viewpoint of preparation time and cost. In other examples, when there are many types of ingredients, the preparation becomes complicated and costs increase, whereas when there are fewer types of ingredients, and it is close to polybutene alone, it is difficult to achieve a balance between coating workability and adhesive strength. I can't. An object of the present invention is to provide a small organism trap composition that meets the above-mentioned requirements. The object of the present invention is as follows: (A) Polybutene 95-95 with a number average molecular weight of 200-2500
99.95% by weight, and (B) 0.05-5% by weight of dibenzylidene sorbitol and/or tribenzylidene sorbitol
and (A) polybutene 50-50 with a number average molecular weight of 200-2500.
99.45% by weight, (B) 0.05 to 5% by weight of dibenzylidene sorbitol and/or tribenzylidene sorbitol, and (C) a rubbery organic substance dissolved in the polybutene (A) and having a viscosity average molecular weight of 10,000 to 2,500,000 by Flory method. This is achieved by an improved small organism trap composition characterized by comprising 0.5-45% by weight of a polymeric compound. Hereinafter, the improved small organism trap composition according to the present invention will be described in more detail. In the present invention, (A) polybutene means a number average molecular weight
200-2500, preferably 500-2000,
For example, it can be produced by polymerizing a part of the butane-butene fraction, which excludes butadiene, of the so-called C ₄ fraction produced by naphtha cracking. These polybutenes are commercially available, for example, from Nippon Petrochemicals Co., Ltd. under the trade name Nisseki Polybutene. If the molecular weight of polybutene is smaller than this range, the flash point will be low, which will reduce safety when used in a place where there is fire such as a cooking area. Moreover, if it is larger than this range, the viscosity of the composition becomes too high, making it impossible to perform a smooth coating operation. (B) Dibenzylidene sorbitol and/or tribenzylidene sorbitol as used in the present invention is, for example, a dehydration condensate of an aromatic aldehyde and sorbitol or a derivative thereof, and specifically, Gelol D manufactured by Shin Nippon Chemical Co., Ltd. Alternatively, it is commercially available under the name Gelol T. Preferred among these is tribenzylidene sorbitol. The blending ratio of component (B) is 0.05 to the entire composition.
-5% by weight, preferably 0.1-3% by weight, more preferably 0.1-1% by weight. If the blending ratio is less than the above range, the effect of preventing the capture agent from flowing out and oozing out will not be sufficient. On the other hand, even if the amount exceeds the above range, no effect commensurate with the increased amount can be obtained, which is even more undesirable from an economic standpoint. The present invention is characterized in that a sufficient effect can be obtained by using only a very small amount of component (B), and for example, a sufficient effect can be obtained even with a blending amount of 0.1 to 0.4% by weight. In the present invention, in addition to the above-mentioned essential components (A) and (B), a rubber-like organic polymer compound can be further blended as component (C) if necessary. The rubbery organic polymer compound (C) as used 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.
30,000 to 2,000,000. Examples of these rubbery organic polymer compounds include polyisobutylene, butyl rubber, natural rubber, polyisoprene rubber, styrene-butadiene rubber, butadiene rubber, and ethylene-propylene terpolymer. Rubber-like organic polymer compounds having polarity, such as chloroprene rubber and nitrile rubber, are not preferred because they have insufficient compatibility with polybutene. Among these, preferred compounds are polyisobutylene or 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 apply it smoothly to the surface of the material to be coated. Furthermore, the composition is difficult to cut after application. When component (C) is blended, its blending amount is 0.5 to 45% by weight based on the entire composition. in particular,
It is appropriately determined depending on the number average molecular weight of the polybutene (A) and the viscosity average molecular weight of the rubbery organic polymer compound (C) used, but is preferably 1 to 30% by weight. The composition of the present invention can be used as it is for capturing small organisms, but depending on the usage, a tackifying resin such as ester gum, an inorganic or organic filler, or a small organism attractant may be added as appropriate. It can also be used as 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. The composition of the present invention can be applied to the above-mentioned materials of various sizes, shapes, and structures. Hereinafter, the present invention will be explained in more detail with reference to Examples and Comparative Examples. Examples 1 to 5 and Comparative Examples 1 to 3 Various compositions shown in the table were manufactured and their performances were evaluated. The evaluation method is as follows. Adhesive strength: Based on the probe tack method, a 1/2-inch steel ball is brought into contact with the composition applied to a flat surface for 60 seconds, and the stress necessary to separate the steel ball from the applied surface is applied.
It was measured using a tensile tester at 20°C. Flow-out and ooze-out properties: The composition was applied to a 1-mm-thick cardboard to a thickness of 1 mm, fixed on a table with an angle of inclination of 45°, and left at 40°C for 15 hours, after which the composition flowed out and oozed out. observed. Mouse-catching ability: Apply the composition to a thickness of 1mm on a 1mm-thick cardboard and place it in the mouse passage.
We observed its catching ability. Example 1 is a composition comprising (A) polybutene with a number average molecular weight of 2350 and (B) tribenzylidene sorbitol (Gelol T). This composition is
It is colorless and odorless, has sufficient adhesive strength, and
The coated material did not run out or seep out of the cardboard even at 40°C, and it also had an excellent ability to trap mice. Examples 2 to 4 are (A) polybutene with a number average molecular weight of 570 to 1,260, (B) dibenzylidene sorbitol (Gelol D) or tribenzylidene sorbitol (Gelol T), and (C) viscosity average molecular weight of 600,000 to 600,000 by the Flory method. It is a composition made of 1,600,000 polyisobutylene or butyl rubber. As in Example 1, both compositions had adhesive strength,
It had satisfactory performance in all aspects of run-off, seepage, and mouse-capturing ability. Example 5 is a composition in which (A) polybutene with a number average molecular weight of 1260 and (B) dibenzylidene sorbitol were further added with ester gum (H) manufactured by Arakawa Chemical Co., Ltd. as a tackifying resin. This composition has a pale yellow color and a slight ester odor, but in a test of its ability to capture mice, it was observed to capture many insects in addition to a black rat weighing 72 g. Also, no run-off or seepage from the cardboard was observed. Comparative Example 1 is a composition consisting of (A) polybutene and (C) polyisobutylene. Although it has a good ability to capture mice, it has a high tendency to run off because it does not contain component (B), and if the mount is installed on a slope, the composition will flow out. Furthermore, when cardboard is used as the mount, the composition oozes out onto the back side of the mount, staining the floor. Comparative Example 2 is a composition consisting of (A) polybutene and (C) polyisobutylene, in which 0.5 weight of paraffin wax, which is said to have an effect of preventing run-off, is added in place of component (B) in the present invention. % of the composition. With 0.5% by weight paraffin wax,
There is no effect on preventing run-off and seepage, and the adhesive strength is also reduced. Comparative Example 3 is a composition in which 5% by weight of paraffin wax was added instead of component (B). Room temperature (25
(°C), no run-off occurred, but in evaluation at 40°C, the effect of adding paraffin wax disappeared and the composition began to flow. In addition, on the surface where the composition is applied,
The adhesion was reduced due to the oozing of wax, and in the capture ability evaluation test, there were traces of mice escaping.

【table】

【table】

Claims (1)

[Claims] 1 (A) Polybutene 95 with a number average molecular weight of 200 to 2500
~99.95% by weight, and (B) 0.05-5% by weight of dibenzylidene sorbitol and/or tribenzylidene sorbitol
An improved small organism trap composition comprising: 2 (A) Polybutene 50 with number average molecular weight 200-2500
~99.45% by weight, (B) 0.05 to 5% by weight of dibenzylidene sorbitol and/or tribenzylidene sorbitol, and (C) a rubbery substance dissolved in the polybutene (A) and having a viscosity average molecular weight of 10,000 to 2,500,000 by Flory method. An improved small organism trap composition comprising 0.5 to 45% by weight of an organic polymer compound.