DE616770C - Method of killing flies - Google Patents

Description

GERMAN EMPIRE

ISSUED AUGUST 5, 1935

REICH PATENT OFFICE

PATENT LETTERING

CLASS 451 GROUP 3oi

4511168.30

I. G. Farbenindustrie Akt.-Ges. in Frankfurt a. M. *) Method of killing flies

Patented in the German Empire on November 15, 1930

The patent 610 409 describes the use of benzoic acid esters or their substitution products for the destruction of flies. On the other hand, it is known to use aromatic ethers for the destruction of insects.

It has now been found that main kill flies in closed rooms as well can if you have solutions or emulsions

ίο of compounds of the aromatic series, the simultaneously esterified carboxyl groups and esterified or etherified O Η groups contained, sprayed. For example, if you spray 1 ecm for a cubic meter of room the solution of 15 parts of 2-chloro-4-meth! - methyl oxybenzoate in 85 parts of petroleum distillate, so fall within the first 5 minutes 97 0/0 of the existing Flies to the ground. Such an effect could previously only be achieved with pyrethrum preparations, Compared to which the new means has the essential advantage that those can be produced with the help of foreign raw materials Pyrethrum extracts are relatively difficult to access, while the most diverse etherified and esterified oxycarboxylic acids at any time in any Amount can be represented synthetically. The application of the compounds mentioned can either by splashing their

* Solutions in organic solvents, e.g. B.

Petroleum distillates take place or any aqueous emulsions produced therefrom. The compounds can also be used simultaneously with other synthetic or natural compounds Use mixed insecticides.

The following are examples of the claimed compounds:

ι. Phjenyl 2-methoxy-i-benzoate,

2. 2-phenoxybenzoic acid butyl ester,

3. 2-aoetylbenzoic acid propyl ester,

4. 2-methoxy-S-chlorobenzyl-amyl ester,

5. 2-chloro-4-methoxybenzoic acid propyl ester,

6. Benzoate of ethyl p-oxybenzoate,

7. amyl ethoxy cresotinate,

8. amyl dimethoxyethoxybenzoate,

9.2 - amyl methoxy-1-naphthoate,

10. ^{2-isoamyloxy-i-i} naphthoesäureb utylester,

11. Benzyl dimethoxybenzoate.

The following mixtures, for example, are suitable for use:

1. 10 parts of 1-phenoxybenzoic acid methyl ester be with 15 parts of soft soap and ι part of oleic acid ester of oxyäthans'ulfosauren Emulsified sodium and made up to 100 parts with water.

2. 5 parts of amyl s-chloro-2-methoxybenzoate and 5 parts of phenyl 2-methoxybenzoate are dissolved in 88 parts of light oil with a boiling point of 190 to 280 ^° and 2 parts of isobornyl acetate are used to improve the odor

') The patent seeker indicated that the inventors were:

Dr. Kaspar Pfaff and Dr. Michael Erlenbach in Frankfurt a. M.-Höchst.

Claims (1)

to. The preparation kills when ι ecm is used in ι cbm space. Flying in no time Time off. 3. 10 parts of amyl dimethoxybenzoate and 0.5 part of pyrethrum extract are dissolved in 20 parts of light oil. For improvement 5 parts of paraffin oil are added to the suspension during spraying. Then 2 parts of oleic acid ester of sodium oxyethanesulfonic acid are dissolved and filled with water to 100 parts. This preparation can be used especially in stables and basements Kill flies. Patent acceptance: . Method for killing flies by spraying a solution of a pesticide containing substituted benzoic acid esters in closed rooms, characterized in that a solution or emulsion is used for this purpose which contains compounds of aromatic oxycarboxylic acids which are present on both the COOH and the OH Group are esterified or etherified.