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tures of fibers or threads or cotton wool can be impregnated or soaked with the virucidal disinfectants and for example used as medicinal swabs. Also possible is the use of impregnated and/or soaked papers. Solid carriers which are soaked or impregnated with disinfectants can also be in special, in par› ticular automatic controlled dispensing devices. 

[0096] The disinfectants according to the invention overall exhibit a very broad use spectrum and can be used for the disinfection of a large number of different inanimate surfaces and also of a great variety of animate surfaces. The inanimate surfaces can for example be in the form of medical instru› ments. The animate surfaces are in particular human and/or animal skin areas, the skin of the hands in particular being among the human skin areas. 

[0097] For the production of the virucidal disinfectants according to the invention, the following procedure can for example be used: in a first process step, all components except for the alcoholic main component are completely dissolved in a suitable quantity of water. 

[0098] For this, solubilizers as described above can if nec› essary be used. Then in a second process step, an alcoholic main component is added to the aqueous solution. 

[0099] In principle, however, other production processes are also possible. Thus for example components of the disin› fectant sufficiently soluble in alcohol can be dissolved before› hand in the alcoholic main component and only mixed with the aqueous solution in the second step. In principle, it is also possible to mix all components together in one process step. 

[0100] Further advantageous embodiments and combina› tions of characteristics of the invention follow from the fol› lowing detailed description and the totality of the patent claims. 

## MODES OF IMPLEMENTATION OF THE INVENTION 

[0101] In order to demonstrate the essence of the invention various formulae of disinfectants with different compositions were made up and their virucidal efficacy tested. For the production of the disinfectants, in a first process step, all components apart from the alcoholic main component were completely dissolved in a specified quantity of water, and in a second step the appropriate quantity of alcoholic main com› ponent was added. 

[0102] The virucidal efficacy of the disinfectants thus pro› duced was performed with polio viruses type 1, LSc-2ab as test virus in accordance with the test conditions "Sanitary hand wash disinfection and hand washing" of the standard EN 14476 (2005). In particular, the test virus i.e. polio viruses type 1, LSc-2ab was first made up in a viral suspension according to the standard at 20–1 ° C. Also, PBS or buffered common salt solution at 20–1 ° C. was used as the loading substance as specified. Further, 1 ml (milliliter) of the virus suspension and 1 ml of the buffered common salt solution were mixed with 8 ml of the virucidal disinfectant prewarmed to 20–1 ° C. and maintained at a test temperature of 20–1 ° C. After an exposure time of 60 seconds, 90 seconds and 120 seconds small volumes were withdrawn and immediately transferred into a cell maintenance medium to suppress the virucidal action. The viral titer was then determined in accor› dance with the standard EN 14476 (2005). The reduction of the infectivity of the viruses is calculated according to the standard from the differences in the decimal logarithmic viral titer before and after the treatment with the virucidal disin› fectant. 

## Virucidal Disinfectants Containing an Acidic Com- pound and Urea (with No Zinc Salt) 

[0103] The virucidal disinfectants according to examples A and B listed in table 1 have an alcoholic main component consisting of ethanol and 2-propanol, with a content by weight of 73.07 wt. % overall. As the acidic compound or acid, in the two examples A and B, L( + )-lactic acid is con› tained in slightly different contents of 2.50 wt. % (Example A) and 2.00 wt.% (Example B) respectively. Furthermore, in both examples urea is contained, also in slightly different contents of2.50wt. % (ExampleA) and3.00wt. % (Example B) respectively. In addition, the formulae of examples A and B have PEG 4000 as an additive for regulating the material consistency, glycerin as skin care component, sodium pyr› rolidonecarboxylate (Na PCA) and water. 

[0104] As can be seen from table 1, with formulae accord› ing to examples A and Ba viral titer reduction by 3.88 log stages (Example A) and 3.50 log stages (Example B) respec› tively is already achieved after 60 seconds. After 90 seconds both formulae already exhibit a viral titer reduction of more than 4 log stages and after 120 seconds with the formula according to example A, a viral titer reduction by more than 5 log stages is already achieved. Hence there is clearly a viru› cidal action. 

[0105] In addition, the virucidal disinfectants according to examples A and B have been found to be storage-stable for at least two weeks and to have good skin tolerance. No itching, reddening or burning of the skin could be observed even after intensive use. 

[0106] The virucidal disinfectants according to examples A and B can therefore be designated as suitable for use. 

<img src='content_image/931455.jpg'>

## Examples A and B 

