DE2007514A1 - Agylomarate fungicide for morter concrete - etc - Google Patents

Abstract

Organo tin agglomerate fungicide for mortar, concrete or plaster is present in an amt. of 0.005 - 1% wt. (w.r.t. lime or cement) and has formula: R3 - Sn - R'; R3 - Sn - O - Sn - R3; R3 - Sn - SH; R3 - Sn - OCOR"; R3" - Sn - R'; R2 - Sn - R2"; R3 - Sn - R"' or R3 - Sn - X (where R is CH3, C2H5, (iso)C3H7, (iso)C4H9; (iso)amyl; R' is acetyl; R" is phenyl; R"' is lauryl or oleil and X is Cl, Br or I).

Description

Fungicidal binder for the production of mortar, concrete and paints The present invention relates to a fungicidal binder for the production of Mortar, concrete and paints.

The purpose of the invention is to have a lasting fungicidal effect To achieve the addition of a small amount of an organic tin compound.

It is known that cements, mortars, types of lime, throats and others Mortars, putties, paints and a number of others with the help of these Materials very often mass produced by various microorganisms, for example Molds, bacteria, yeasts and the like are attacked. The spread of this Microorganisms, for example, on the walls of operating rooms, basements, storage rooms u0 similar represents a serious defect, which causes great losses to the manufacturer on finished products.

This applies primarily to the food industry, in whose operational or storage rooms due to the influence of favorable atmospheric humidity and temperature the growth of molds such as Aspergillus flavus, Chaetomium globossum, Geotrichium candidum various types of Penicillium, for example Penicillium expansul, etc., is made possible.

So far there are some fungicidally effective inorganic or organic Connections became known. Among the inorganic compounds are e.g. zinc chloride, Chromium / III / oxide, copper, mercury, thallium compounds, sodium fluorosilicate, Sodium and calcium fluoride, boric acid, borax and others are mentioned. Among the organic Compounds should be mentioned e.g. creosote, organic mercury and lithium bonds, Phenol, chlorophenols, p-nitrophenol, selicylic acid salicylic acid anilide, some terpenes, 2,3-dichloro-1,4-naphthoquinone, etc.

A major disadvantage of these fungicidal substances is their toxicity towards lower and higher living beings, and also their low effectiveness in lower concentrations and the consequent high costs, in particular when using higher concentrations, as they are predominantly teners Substances. Last but not least, the dermatological effects of a lance must also be A number of these substances must be taken into account.

The above-mentioned disadvantages are caused by the fungicidal binder for making mortar, concrete, and paint surfaces of this invention. This binder is characterized in that it is o, oo5% to l, o * based on the weight of cement or lime, an organic tin compound of the general Formula (R) 3-Sn-R ', (R) 3-Sn-O-Sn- (R) 3, (R) 3-Sn-SH, (R) 3-Sn-OCOR' ', (R' ') 3-Sn-R' (R) 2, (R) 2-Sn- (R ") 2, (R) 3-Sn-R" "or (R) 3-Sn-X, where R is an Xethyl, kethyl, propyl, Butyl, amyl, isopropyl, isobutyl or isoamyl radical, R 'is an acetyl radical, B "is a Phenyl radical, R "a lauryl or oleyl radical and X a chlorine, broi or iodine atom means contains.

For making the fungicidal binder of the present invention The organic tin compounds show themselves from the point of view of the effect 3 to 4 carbon atoms in the alicyl radicals or those with phenyl radicals as the most effective. Examples include tributyltin acetate, bis-tributyltin oxide, Tripropyltin sulfide, tributyltin benzoate, triphenyltin acetate, dibutyltin dilaurate, Triisobutyl tin oleate, tributyl tin chloride, etc.

The fungicidal binder of the invention is prepared so that one Clinker, slag, broken gypsum or lime with 0.005 to 1% of the selected organic Tin compound, based on the weight of cement, grinds together in such a way that until a specific surface area of about 3500 cm² / g is achieved in the end product.

The fungicidal effect of the applied organic zinc compounds in mortar and concrete types has been successfully tested against the following molds Penicillium expaneum, Äspergillus flavus, Chaetomium globosum, Geotrichium candium and Escherichia coli.

The tests were carried out with standardized concrete trusses. These Trabeculae were made from a mixture of 1 part cement containing 0.05% of one of the mentioned organic Tin compounds, and 3 parts of sand. The final tone concentration of the tin compound in a finished bar was then o, oo125 %.

On the basis of the tests of the fungicidal effectiveness it was proven that that even in this low concentration the tin compounds mentioned are reliable are effective.

some preparation options for mortar, concrete and paints of the invention are given below.

Example 1 Fungicidal cement was made by grinding together 65,995 % Clinker, 30% slag, 4% gypsum shards and o, oo5% tributyltin acetate (based on on the cement weight). The desired fineness was 3500 cm² / g Blain.

Example 2 Fungicidal cement was made by co-grinding 65.99 % Clinker, 30% slag, 4% plaster cullet and o, ol% bis-tributyltin oxide (based on on the cement weight). The desired fineness was about 3500 cm² / g according to Blain.

Example 3 Pungicidal cement was made by grinding together 65.95 % Clinker, 30% slag, 4% gypsum shards and 0.05% tributyltin chloride (based on on the cement weight). The Blain fineness was 3500 cm² / g.

Example 4 Fungicidal cement was made by co-grinding 65.90 ß clinker, 30% slag, 4 ß gypsum shards and 0.1% triphenyltin acetate (based on on the cement weight). The Blain fineness was 3500 cm² / g.

Example 5 Fungicidal cement was made by grinding together 65.6 % Clinker, 30% slag, 4% plaster cullet and 0.5% tri-isobutyltin oleate (based on on the cement weight). The desired fineness was 3500 cm2 / g Blain.

Example 6 Fungicidal cement was made by grinding 65 together % Clinker, 30% slag, 4% gypsum shards and 1% dibutyltin laurate (based on the cement weight).

The desired fineness was 3500 cm² / g according to Blain.

Example 7 Fungicidal cement was made by grinding together 65.75 % Clinker, 30% slag, 4% gypsum shards and 0.25 ° triisobutyltin sulfide (based on on the cement weight).

The Blain fineness was 3500 cm² / g.

Example 8 Fungistatic lime was made by grinding together 99.99% hydrated lime and 0.01% tributyltin acetate, based on the hydrated lime weight, manufactured.

Example 9 Fungistatic lime was made by grinding together 99.995% hydrated lime and 0.005% bis-tributyltin oxide.

Example lo Fungistatic lime was made by grinding together 9g, 5 p lump of lime and 0.5% triphenyltin acetate produced.

Example 11 Fungistatic lime was made by grinding together 99 * hydrated lime and 1% tributyltin chloride produced.

The samples of mortar or mortar produced according to the above examples. Concrete components after normal processing for their fungicidal and bactericidal effectiveness examined using the following types of mold: Penicillium expeulsum, Aspergillus flavus, Chaetomium globosum, Geotrichium candidum and Escherichia coli. The results of these tests showed a thoroughly reliable fungicidal effectiveness of the samples of the mixtures according to the invention, taking into account the high levels of fungicidal Effectiveness of the mentioned organotin compounds, which are in very low Allow concentrations to be used, which is mainly advantageous for price reasons is, opens up an unlimited area of application for fungicidal binders their basis. These advantages can primarily be found in the food industry, in residential construction and wherever there is moisture and heat the growth of molds and fungi could be estimated.

Claims (1)

P a t e n t a n s p r u c h Fungicidal binder for the production of mortar, concrete and paints, characterized in that it is o, oo5% to 1%, based on the cement or lime weight, an organic tin compound of the general formula (R) 3-Sn-R ', (R) 3-Sn-O-Sn- (R) 3, (R) 3 -Sn-SH, (R) 3-Sn-OCOR ", (R") 3-Sn-R '(R) 2, (R) 2-Sn- (R ") 2, (R) 3-Sn- R '' 'or (R) 3-Sn-X, where R is a methyl, ethyl, propyl, butyl, amyl, isopropyl, isobutyl or isoamyl radical, R 'an acetyl radical, R' 'a phenyl radical, R "' a lauryl or Oleyl radical and X denotes a chlorine, bromine or iodine atom.