CS253323B1 - A method for producing a repellent composition for protecting crop plants from browning, biting and peeling - Google Patents

Abstract

The solution relates to a method of producing repellent preparations for protecting cultivated plants from bites, gnawing and peeling by animals based on crude tall oil containing 30 to 50% unsaponifiable substances, whereby the process of mixing the individual components and their homogenization is carried out at a normal operating temperature of 15 to 35 °C, preferably at 20 to 30 °C.

Description

The present invention relates to a process for the production of repellent preparations for the protection of crop plants from biting, biting and peeling game. these preparations contain as base component tall oil containing 30 to 50% resin acids, 40 to 60% fatty acids and the remainder of unsaponifiable substances.

The method known to date for the production of repellent preparations is based on the use of substances falling off the fat industry or on the use of natural resins. Their processing is very demanding as the resin must be crushed and dissolved in a mixture of volatile and often flammable substances usually at temperatures of 70 to 80 ° C.

When the resin was replaced by waste tar from the distillation of fatty acids, production problems were caused by varying and completely uneven tar quality, which had to be solved by dissolving the tar at a higher temperature and increasing the content of the scarce non-ionic emulsifier.

These drawbacks are overcome by the process for the preparation of the repellent compositions according to the invention, which consists in dissolving the resin acids and other fillers in the crude tall oil at an operating temperature of 15 to 35 ° C, preferably 20 to 30 ° C.

The higher effect of this process for producing repellent preparations is based on the good solubility of the crude tall oil in the less flammable solvent (xylene) used, so that the preparation process can be carried out at an operating temperature of 20-30 ° C. This will significantly reduce or even omit the emulsifier while maintaining or improving all the qualitative properties of the formulation.

The invention is illustrated in more detail by the following examples, which illustrate but not limit the scope of the invention.

He did

It illustrates the current process for producing repellent preparations against bite, bite and peeling with guaranteed effect for 6 to 7 months. In the prior art process, 79 wt. parts of xylene and heat it to 70 ° C. And 130 wt. parts of molten tar and after its complete dissolution, 59 wt. 230 parts by weight of an emulsifying additive, 230 parts by weight of inorganic builders and a dye, and 380 parts by weight parts of water. The mixture was then cooled to a minimum of 30 ° C when 110 wt. parts of butadiene-styrene dispersion (20% solution in water). This was followed by a half-hour homogenization of the heterogeneous mixture by stirring until the final formulation was obtained.

Example 2

In the process according to the invention, 1000 wt. 65 parts by weight of the preparation were introduced into the duplicator boiler with an agitator at an operating temperature (28 ° C). parts of xylene, 125 wt. parts by weight of molten crude tall oil, 15 wt. parts of emulsifying additive,

250 wt. parts of inorganic fillers and dye, 100 wt. parts of butadiene-styrene dispersion in water (20%) and the rest of the water. This is followed by a half-hour homogenization of all components at operating temperature. The result is a repellent preparation having the desired properties.

Claims (1)

A process for the preparation of a repellent for the protection of crop plants from biting, peeling and peeling of animals, characterized in that the raw tall oil containing 30 to 50% resin acids, 40 to 60% fatty acids and the remainder of unsaponifiable substances is mixed together, the homogenization is carried out at a normal operating temperature of 15 to 35 ° C, preferably at 20 to 30 ° C.