Ciba-geigy Corporation

Fmc Corporation

Joachim Lorenz

Reinhardt Grade

Horst Zinke

Dagmar Berrer

Wolfgang Wehner

Rudolf Maul

Peter Riebli

Rene Eric Muntwyler

Heinz Peter

Eberhard Otto

Hermann W Wehner

3,5-Dihalogeno-1,2,6-thiadiazin-4-ones of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are chlorine, fluorine or bromine, in particular 3,5-dichloro-1,2,6-thiadiazin-4-one, are excellently suitable for use as biocides for the protection of industrial materials and for water systems, for example for wood, plastics, paints, oils, adhesives and industrial water circulation systems.

Biocides for protecting industrial materials and water systems

Biocidally active compounds

Special quaternary ammonium compounds are suitable for controlling bacteria, algae and other micro-organisms in cooling water circulation systems, swimming pools and industrial water tanks.

Aqueous system treated with a biocide

2-chloro-4,6-diamino-s-triazines as algicides

A method of using mono- or dibromodicyanomethane for controlling harmful organisms in water, in aqueous systems, in oil or in fuels is disclosed. The compounds act extremely rapidly in very low concentrations.

Method of controlling harmful organisms using mono- and

A mixture of the compound of the formula I

Use of iodoacetamide and amines for the control of harmful organisms,

The invention relates to the use of diamines of the formula I ##STR1## in which R and R.sup.1 are, for example, identical and are alkyl, as active substances for the control of harmful organisms in water and other materials, especially industrial materials. Inter alia, bacteria, fungi, yeasts and algae are controlled. The control is effected in standing and running waters. In preservatives and disinfectants, the diamines are used for natural and synthetic materials, especially industrial materials.

Methods and compositions for the control of harmful organisms containing

A sea-water algicidal composition containing a triazine of the group comprising 2-methylthio-4-cyclopropylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-t riazine (I); 2-methylthio-4-cyclopropylamino-6-t-butylamino-s-triazine (II); and 2-methylthio-4-ethylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-triazin e.

2-Methylthio-4-cyclopropylamino-6-(

Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected.

Sulphur-containing esters of phosphoric acid

Agent for combating sea-water algae

Lubricant compositions containing sulfur-containing esters of phosphoric

Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected. They are obtained in high yields, shorter reaction times and relatively free from by-products via the trithiophosphites by reaction of phosphorus trihalides with mercaptans in the presence of a catalyst and subsequent oxidation with sulphur or an oxygen donor.

Processes for the production of sulphur-containing esters of phosphoric

Compounds of the general formula I ##STR1## wherein M IS 4, 6 OR 8,

Growing community of inventors

Bensheim, Germany

Joachim Lorenz