SU556719A3 - Multilayer material - Google Patents

Description

(54) MULTILAYER MATERIAL

Two maisonite panels with staples one above the other are placed on the bottom of a 4 liter glass vessel to create a cover for insects. Polymeric material is introduced on top of the bottom panel. Cockroaches are placed in the vessel to observe their mortality. With materials of low concentration (5%), mortality (dead and dying) was determined through the mouth

days, in the case of high concentration materials, mortality was determined at the end of one day, three days, and six days. The test of high concentration materials was also repeated 60 days and 150 days after the date of their manufacture. Cut) latty shown in Table. one.

Table 1

 In each column, the first is the same for the third day and the third is

After two days of aging and six days of exposure, the material with diazinon killed all cockroaches. Malathion is also effective in killing cockroaches of normal appearance, but not resistant to diazinon. Chlornirifos is the most effective, completely killing cockroaches by the end of the first day of excursion. Chlordeine is quite effective against the normal species, but only moderately effective against the species resistant to diazinon. Carbaryl showed low Bhari activity of any type of cockroach.

Then the materials were subjected to aging and again snytyvali. The results, as can be seen from the table. 1, after 60 and 150 hours of aging, is usually better than during two days. This can be explained by the fact that it takes a certain period of time, sometimes several days or more, depending on the toxicity of the agent and the polymer system, for the toxic agent to migrate so that the material achieves a full effect. So, diazinon, chlornirifos and Chlordein completely killed normal and diazinon-resistant cockroaches after six days of extrusion of material aged for 60 days. And the alation completely killed the normal look and better killed the resistant against diazinon cockroaches than during the first test. Carbaryl showed the worst results against diazinon-resistant cockroaches, but completely killed normal cockroaches after six days of exposure. Results after 150 days of aging show no signs of decreased effectiveness.

Example 9. In the material made in accordance with example 1, introduced synthetic pyrethroid ((-t / ans-resmetrin, also known as bioresmetrin) in the amount of 12.5% of the total weight and the material in the form of a sheet and

Confetti (up to 0.3 mm) was tested against cockroaches. The square active sheets on the upper surfaces are covered with 76X X76 mm glasses and transparent glass 4.7 mm above them to create a refuge for insects. Then these structures were placed in containers containing 20-100 cockroaches and considered dead and dying, (see data in Table 2). Sheet material containing synthetic pyrethroid continued to show xoponiee a deafening and killing effect after exposure for 34 days in the laboratory. Multilayer material, similarly to single-layer, showed high activity for 15 days and loss of activity.

after 29 days.

The material in the form of a sheet and confetti of this invention, containing biosmetrin, has a dramatically increased duration. The figure means the percentage of mortality at the end of the first day, the second for 6 days.

56 Testing the effects of materials containing biosmetrin on cockroaches (Prussians of unknown species)

 For the rest of the observations, cockroaches are transferred to clean vessels.

residual activity of this easily decomposable compound.

Example 10. The polymeric insecticidal materials of this invention have the unique ability to protect the active ingredients from degradation, increasing the durability of an insecticide without increasing its presence in the environment. This example demonstrates the durability of some materials containing malathion, diazinon, chlorpyrifos, fenchlorfos, chlordane, and carbaryl. All samples contained from

Preservation of the presence of insecticides when using materials of the invention with controlled release of an insecticide after the date, month from the date of manufacture of the samples, days

table 2

4 to 11% insecticide, based on the total weight of the material.

In accordance with the test procedure, cockroaches were placed in open tanks, the bottom

lined with insecticidal material. The time required for killing 100% of cockroaches was recorded, it is shown in Table. 3, depending on the time that has passed since the material was manufactured. Between

By experiments, the material in open vessels was exposed to the atmospheric conditions of the room (21 ° C, 40% relative humidity).

Table 3

The results are shown in Table. 3 show that all materials are capable of killing cockroaches with undiminished force after periods of 15 months.

Example 11. Three materials were manufactured in accordance with Example 1, containing, respectively, 31.5% chlorpyrifos, 22.4% carbaryl and 40% chlordane, and were placed in a weathering instrument to investigate the harmful effects of environmental conditions on the ability to beat materials. cockroaches. The instrument arc operated at 60 a and 50 volts and the instrument worked so that the samples were subjected to consecutive cycles of illumination for 102 minutes without spraying water and illumination for 18 minutes with spraying water at 27 ° C.

After exposure for 250 hours, three samples were tested for activity against cockroaches as indicated in Example 10.

Materials containing chlorpyrifos and carbaryl showed 100% killability in one day, and the sample with Chlordein after four days.

After exposure to the weather tester for 500 hours, the specimens are tested again. Samples with chlorpyrifos and carbaryl showed 100% killability in one day, and a sample with Chlordein after three days.

This invention is not limited to the examples presented.

Claims (2)

1. US patent No. 3295246, CL. 43-131, 1967 (prototype). 2. U.S. Patent No. 2,911,756, Cl. 43-114, 1959.