Übersetzung für "Wasserfreiheit" in Englisch

Even the use of absolute solvents does not completely ensure the exclusion of water.

This film is stored at room temperature until free of water.

The cyclic carbamic esters are employed at commercially available purity and freedom from water.

It is particularly important to ensure anhydrous conditions and to dry the starting materials, if necessary, before use.

By means of the invention, one obtains a cosmetic mass which can be regarded as an instant cream which, compared with conventional creams, is characterised particularly by its absence of water or a comparatively extremely low water content.

The device must of course also continue to compact and drain the ice so that the fragments will be hard enough and free enough of water.

This pigmented lacquer is applied to an aluminium foil by means of a doctoring blade (12?), dried until free of water and then hardened with UV-radiation.

This solid was digested with 500 ml of water, once again filtered off under suction and dried at 50° C. in vacuo until it was anhydrous.

Unexpectedly, it has now been found that, by using special metal catalysts and anhydrous conditions in the reaction medium, transesterification of a-ketocarboxylic esters is possible in good yield and without side reactions.

The distillate at the top of the tower was tested at 100% reflux to be anhydrous (<0.1% water by Karl Fischer).

To this mixture 110 g of Polysorbate 80 are added, the whole stirred with heating at about 100° C. until free of water, i.e. until boiling terminates.

The mixing of the thermoplastic starch with the polyester component or components, together if desired with further additives and components, takes place preferably in an extruder or kneader, which preferably has a devolatilizing device, for the continuous removal of moisture, in order to attain the required freedom from water.

However, the absence of water and 100% conversion are not necessary in every case in order to achieve optimum tinctorial properties.

In most cases, a conversion of from 70 to 90% is sufficient; this conversion does not require anhydrous conditions and advantageously permits the acylation to be combined with the preparation of the hydroxyalkylaminopyridine.

The degree of acylation can be controlled via the amount of mineral or sulfonic acid and the water content of the reaction mixture and, in the absence of water, is 100%.

The required freedom from water of the solvent may be achieved by means of a molecular sieve, in particular based on a metal aluminosilicate having a large surface.

Should a molecular sieve be used for the removal of traces of water instead of an increased reflux ratio, only the part of the alkylene oxide for which “freedom from water” is desired has to be treated.

The absence of water is also beneficial to the later fibre composite component part, since it is impossible for it to contain any water residues which would cause the metal sheets to rust from the inside and which may disrupt the adherence of the component part.

However, the use of these building blocks, which are particularly reactive owing to their C-1 spacer between silane and functional group, is very complex precisely because of this high reactivity, since premature curing and side reactions have to be avoided, which places high demands on purity and freedom from water of the formulation ingredients and also makes special and expensive additives necessary.

Absolute freedom from water is not necessary; on the contrary, it is especially advantageous if the organic solvent contains traces of water.

The proposed compositions are further advantageous in that, on account of the freedom from water, corrosion of device components which come into contact with a preparation is not to be feared.

An important advantage of both pencil variants lies in the freedom from water of the preparation, which simplifies the manufacture.

Finally, it is also advantageous with both pencil variants that, due to the freedom from water, corrosion of equipment components that come into contact with a preparation is no longer a fear.

This was applied at 75 g/m2 on to a wood surface (ash) by means of a spray gun, ventilated at 30° C. for 2 minutes in a circulating air drying oven, and dried at 4 m/minute at 45° C. in a nozzle drier until it was completely free from water.

The main thing is to achieve drying which is as complete as possible, i.e. free from water.

While the inventive zinc acetylacetonate catalyst itself features good hydrolytic stability, in the transesterification reaction it is preferable to ensure that systemic anhydrousness is adhered to very carefully, i.e. both the employed alkoxy-comprising siloxane and employed polyetherol and also any employed solvents are preferably to be employed in substantially anhydrous form and/or subjected to suitable drying processes.

In the context of the present invention, azeotropic drying and the stripping process in particular have proven useful for producing the desired anhydrousness.

To ensure the systemic anhydrousness desired according to the invention, the preferably employed solvents may for example also optionally be subjected to a very effective pre-drying for example with sodium/benzophenone and subsequent distillation under inert gas application.