CS253322B1 - Repellent agent to protect crop plants from browsing, biting and peeling - Google Patents

Abstract

The solution relates to repellent agents for protecting cultivated plants from biting, chewing and peeling by animals based on a repellent component, butadiene-styrene dispersions, inorganic fillers, non-ionic emulsifiers, solvents and water, containing crude tall oil as an active ingredient in an amount of 5 to 20 wt. % of the final preparation, preferably 8 to 15 wt. %. The preparation contains up to 2 wt. % of a non-ionic emulsifier.

Description

The present invention relates to repellents for the protection of crop plants from biting, biting and peeling game.

To date, both coating and spray formulations have been used, the main components of which are substances falling off the fat industry (eg oxyacids, distillation products from fatty acid refiner) or natural resins. Inorganic substances such as kaolin, clay, siloxide, sand are used as fillers. According to MS. AO 184 488 produces a spray repellent, the main active ingredients of which are a mixture of tall oil and natural resin (rosin). It is difficult to prepare because the resin must be crushed and dissolved in a mixture of tall oil and highly flammable ethanol at temperatures of 70-80 ° C. The availability of coniferous resin is limited, therefore new types of tar-based formulations of vegetable and animal fatty acids distillation, butadiene dispersions (latexes), acrylate dispersions, asphalt and its mixtures with latex, xylene, non-ionic emulsifier and inorganic fillers have been developed. .

These applications have proven to be effective in applications, but production problems have been caused by varying and totally uneven tar quality, which has to be solved by dissolving the tar at a higher temperature and increasing the content of a scarce non-ionic emulsifier. At present, tar is a narrow-profile raw material and it is far from sufficient to cover the requirements of forest seizures.

These deficiencies are overcome by the newly developed repellent composition in which the tar deficiency can advantageously be replaced by crude tall oil, which is a by-product obtained in the alkaline pulp soap process by acidification. The crude product thus isolated contains 30 to 50% resin acids, 40 to 60% fatty acids and the remainder of unsaponifiable substances.

Compared to existing formulations, the repellent formulations according to the invention have a significantly higher effect since the resin acids improve the adhesion of the formulations and the emulsification of the other components; fatty acids (predominantly oleic, linoleic, palmitic and stearic) as well as unsaponifiable constituents (terpenic compounds, higher fatty alcohols, sterols and others) then increase the repulsive effect of the preparations against forest animals. The application efficacy of the preparations has been verified by extensive trials in endangered forest stands and orchards, with a 95-100% repellency effect against deforestation of deer and roe deer and against the bite and bite of hares and wild rabbits.

In the examples, the state of the art of the production of repellents and the repellents according to the invention are explained.

Example 1

It illustrates the existing production of repellent preparations against bite and bite.

In the production of 1000 wt. 79 parts by weight of the anti-bite and bite preparation with guaranteed effect for 6 to 7 months were introduced into a duplicator mixer boiler. parts of xylene which was heated to 70 ° C and 130 wt. 59 wt.% of molten tar and after its complete dissolution (while sticking the tar to the boiler walls). parts of emulsifying additive and 230 wt. parts of inorganic fillers and dye, 380 wt. parts of butadiene-styrene dispersion (20% solution in water). After homogenizing the heterogeneous mixture for half an hour, a final preparation of satisfactory properties was obtained.

In the production of 1000 wt. parts of the bark-proofing and peeling agent with a 6-8-year-guaranteed effect was the same as for 6-7 months, except that to increase its resistance to weathering, 680 wt. 205 parts by weight of the preparation having an effect of 6 to 7 months were added. parts of acrylate dispersion (50% solution in water),

105 wt. parts by weight of an aphalto-latex dispersion in water (50%) and 10 wt. parts of ammonia water (25%).

The final mixture was homogenized for 2 hours. The resulting product (1000 parts by weight of the formulation containing 8.9 parts by weight of tar and 4 parts by weight of emulsifier) had the desired application properties.

Example 2

Illustrates a repellent composition of the invention.

For the production of 1000 wt. parts of the anti-bite and bite preparation having an effect of 6 to 7 months were to 65 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% solution) and the rest of the water. After a half-hour homogenization, which was carried out at normal temperature (approximately 28 ° C - depending on the temperatures of the starting materials), a preparation of the desired properties was obtained.

For the production of 1000 wt. 50 parts by weight of the anti-peeling and peeling agent having an effect of 6 to 8 years without the use of an emulsifier. 90 parts by weight of xylene were added with stirring. parts of molten crude tall oil, 160 wt. parts of inorganic fillers, 360 wt. parts water, wt. parts by weight of butadiene styrene dispersion (20%), 175 wt. % by weight of an asphaltolatex aqueous dispersion (50%), 85 wt. parts of acrylate dispersion (50%) and 10 wt. parts of ammonia water. After one hour homogenization at 28 ° C, the final formulation (heterogeneous mixture of liquid and solid components) of the desired application properties was obtained.

SUBJECT OF THE INVENTION

Claims (2)

SUBJECT OF THE INVENTION 1. A repellent for the protection of crop plants against bite, bite and peeling of game based on a repellent component, butadiene styrene dispersions or mixtures thereof with asphalt, acrylate dispersions, inorganic fillers, non-ionic emulsifiers, solvents and water, characterized in that it contains crude tall oil in an amount of 5 to 20 wt. % of the final preparation, preferably 8 to 15 wt. %. 2. A composition according to claim 1 comprising up to 2% by weight of the composition. % nonionic emulsifier.