METHOD FOR PRODUCING AGENTS FOR PROTECTION OF BLOOD-SUCKING INSECTS Russian patent published in 2019 - IPC A01N53/08 A01N47/40 A01N25/04 A01P17/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to meeting human vital needs, in particular to protection against blood-sucking insects. Method of producing acaricide-repellent agent intended for protection against tick bites, provides for preparation of emulsion mixture and stabilization of repellent emulsion, wherein repellent is emulsified in oxyethylated rapeseed oil (ORO) at temperature of 20–40 °C ratio of 1:10, then, with constant stirring, water is added to 50 wt%, then, with constant stirring, emulsifier I, emulsifier II are added, then, then, with constant stirring, emulsion I stabilizer, emulsion II stabilizer, then, with constant stirring, water is added to 100 wt%. Mixing speed makes 900–6,500 rpm. Repellent used is a mixture of isomers of cypermethrin (1:1): (S)-α-cyano-3-phenoxybenzyl ester of (1R)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclo-propane carboxylic acid and (R)-α-cyano-3-phenoxybenzyl ester (1S)-cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclo-propane carboxylic acid (alpha-cypermethrin). Ratio of the initial ingredients is (wt%): alpha-cypermethrin emulsified in ORO – 5–20, emulsifier I – 0.2–0.4, emulsifier II – 0.1–0.2, emulsion I stabilizer – 0.1–0.2, emulsion II stabilizer – 0.2–0.4, water – up to 100. Emulsifier I used is crypto-anionic surfactant, such as carboxylates of oxyethylated alkylphenols carboxypav AF 6.90 or carboxypav AF 6.35, emulsifier II used is a nonionic surfactant such as oxyethylated alkylphenols Neanol AF 9/10, Neanol AF 9/4, Neanol AF 9/12, Fenoxol BV 9/10, Synthanol BV, emulsion I stabilizer used is a cationic water-soluble polymer of a linear-cyclic structure of polydiallyldimethylammonium chloride (PDADMAC), and emulsion II stabilizer is anionic polyelectrolytes based on polycarboxylic acids, salts thereof and ethers of Acremone B1, Acremon LK-2, manutex.

EFFECT: disclosed method of producing an agent for protection against insect bites provides higher safety of the agent, reliability of protection for a long period of time, simple process of making the agent by mixing all components in one production container at a constant temperature.

1 cl, 5 ex