DE507097C - Moth repellent - Google Patents

Description

GERMAN EMPIRE

ISSUED ON SEPTEMBER 12, 1930

REICH PATENT OFFICE

PATENT LETTERING

JVe 507097 CLASS 451 GROUP

LG. Farbenindustrie Akt-Ges. in Frankfurt a. M. *)

Moth repellants Patented in the German Reich on February 22, 1927

Many methods are already known for treating wool, fur and the like to protect against moth damage with chemicals.

A method has now been found whereby one can penetrate the goods with the solution of the agent used can increase considerably, and under the greatest possible extent Protection of the material. It consists in having the solutions used for this purpose Adding substances that have a wetting property and are known as wetting agents are known. Such means are z. B. sulfurized fatty acids or aromatic Sulphonic acids or their salts which contain or consist of alkyl, aryl or aralkyl radicals aromatic sulfonic acids with one or more aliphatic groups, which have three or more carbon atoms such as propyl, isopropyl, butyl and isobutyl.

Among other things, it has also proven to be expedient to carry out such solutions Spraying with suitable devices on the fabrics etc. to bring what of course is much more convenient and less time consuming than bathing.

Attempts to increase the wetting ability of moth repellants have been made in technical The importance of the problem has already been undertaken repeatedly, but failed due to the insufficient effectiveness of the proposal brought additives of sodium sulfate, alum and other soluble sulfates or higher unsulfated fatty acids. Neither on its own, still in conjunction with the various moth remedies on the base the inorganic fluorine compounds or benzenesulphonic acid or ß-naphthalenesulphonic acid and their salts as described in British Patent 235,914 have these Additions gained importance. While the z. B. isobutylnaphthalenesulfonic acids or sodium dibenzylnaphthalenesulfonic salts ensure immediate wetting effect in a very short time, when applied in the same way, additions of sulfate, alum etc. prove to be practically ineffective and in this case wetting occurs without mechanical treatment for half an hour to an hour.

Especially in the absence of mechanical treatment due to the excellent wetting effect the claimed sulfonic acids and their salts is intended, but the far-reaching technical importance of this lies Procedure.

example

The plush cover of upholstered furniture is made with a solution of 4 parts of hydrofluoric acid Sodium and a part of isopropylated sodium naphthalenesulfonate per liter of water with a pressure

*) Of the Patent seeker is than that Inventor has been specified:

Dr. Hermann Stötter in Leverkusen.

gun splattered. Without any mechanical processing, the dry fabric sucks the solution in a very short time. Because of this even distribution of the moth repellent the plush cover is completely protected from moths and at the same time by the elimination of any mechanics see processing the quality of the goods largely spared. Instead of the silicofluoride Acid sodium can use other water-soluble moth remedies, in place of the isopropylated sodium naphthalenesulfonic acids are the other aromatic sulfonic acids mentioned step.

Claims (3)

PATENT CLAIMS: i. Moth repellants made from mixtures of moth repellants and Wetting agents, characterized in that sulfated wetting agents are used Fatty acids or aromatic sulfonic acids or their salts, which advantageously contain alkyl, aryl or aralkyl radicals or aromatic sulfonic acids with one or more aliphatic groups containing three or more carbon atoms, such as Propyl, isopropyl, butyl and isobutyl. 2. Method of protecting wool and the like against textile pests, characterized in that the goods are with treated the mixtures mentioned in claim 1. 3. Embodiment according to claim 1 and 2, consisting in that one such Spraying solutions onto the goods.