Übersetzung für "Antifreeze agent" in Deutsch

At temperatures below 2,5 °C, 20 % ethylene glycol can be added to the solution as an antifreeze agent.

A preferred antifreeze agent is propylene glycol.

Therefore, for conservation, the liquid systems of the known blood treatment devices are generally filled with an antifreeze agent.

In addition, the measuring of the concentration of the antifreeze agent in the coolant does not take place during each workshop visit of the vehicle.

Too high a concentration of the antifreeze agent can also be identified with the coolant circuit according to the invention.

Regardless of the life span of such a substance, it should immediately be replaced with a new antifreeze agent.

In several cases this is what led to confusion with the antifreeze agent, ethylene glycol.

Besides the specified solvents, it is convenient to add, depending on the dye, up to 30% by weight, based on the entire formulation, of an antifreeze agent, for example a C2 -C4 glycol, preferably, ethylene glycol, propylene glycol, butylene glycol or diethylene glycol, in order to improve the storage stability further.

The amount of the antifreeze agent (component B) is generally 15 to 60% by weight, preferably 30 to 50% by weight, relative to the weight of the agent.

The invention relates to a lubricant for saw chains, which is composed essentially of water and a water-soluble antifreeze agent, as main constituents, and of corrosion inhibitors, wear inhibitors and adhesion promoters and which in particular ensures prolonged operation of the saw chain machine.

The known synthetic saw chain lubricants are composed essentially of water and a water-soluble antifreeze agent, preferably glycols, glycol ethers and/or trihydric aliphatic alcohols, such as glycerol, if appropriate together with monohydric, lower aliphatic alcohols, such as isopropanol, as main constituents.

Although the adhesion promoters used in the known saw chain lubricants composed of water and antifreeze agent as main constituents are capable of increasing the viscosity of the base constituents, they are precipitated during the operation of the saw chain machine, due to evaporation of water, as a result of which not only their viscosity-regulating action, but also their stringiness-imparting action is substantially lost.

This object is achieved, in accordance with the invention, by means of a lubricant for saw chains, composed essentially of water and a water-soluble antifreeze agent, as main constituents, and of corrosion inhibitors, wear inhibitors and adhesion promoters, each in an effective amount, wherein the adhesion promoter is a water-soluble polyethylene glycol and/or a water-soluble acrylamide copolymer which contains sulfonic acid groups, the molecular weight of each being at least 500,000, in an amount of 0.05 to 1% by weight, relative to the weight of the lubricant, and the lubricant additionally contains 5 to 50% by weight, relative to the weight of the lubricant, of a water-soluble polyethylene oxide/polypropylene oxide adduct having a viscosity of at least 300 mPa.s at 50° C.

If no conversion heat is to be used and when heat is coupled in through the heat collector from the environment at temperatures below 0° C., an antifreeze agent may be added to the water.

A dispersion according to claim 1, which additionally comprises a preservative and/or an antifreeze agent.

In contrast to that mode of direct heating of water for industrial use, indirect systems require a fluid heat carrier such as water which is possibly mixed with an antifreeze agent and which flows through the pipe system, which covers a certain area, in a closed circuit. In a heat exchanger, the fluid heat carrier gives off its energy to a related water circuit, while accepting losses.

Process as in claim 4 wherein said primary refrigerant is a mixture of water and an organic antifreeze agent.

Alternatively, some other antifreeze agent such as monohydric and/or polyhydric alcohols can be added to the water.

However, this method is extremely costly since the vapor which is condensed in the antifreeze agent must subsequently be expelled again.

This saw chain lubricant is composed essentially of water and a water-soluble antifreeze agent, as main constituents, and of corrosion inhibitors, wear inhibitors and adhesion promoters in a quantity which is effective in each case, the adhesion promoter being a water-soluble polyethylene glycol and/or a water-soluble acrylamide copolymer which contains sulfonic acid groups, the molecular weight of each being at least 500,000.

And tea saponin is extracted from tea seeds out of a class of compounds glucoside, is a good natural surfactant, which can be widely used in light industry, chemicals, pesticides, beverages, farming, textiles, oil, mining, building materials and in areas such as highway construction, manufacturing emulsifier, detergent, pesticide additives, feed additives, crab aquaculture agent, textile auxiliaries, oil flotation reagents, mining lubricants, as well as stability of aerated concrete antifreeze agent, such as with the highway.

Biologists from the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association have now succeeded in decoding the genetic plan of this natural antifreeze agent and in bioengineering the protein.

Preferred solid compound formulations of the fungicides and/or insecticides for the treatment of seed usually comprise from 0.5 to 80% of active compound, from 0.05 to 5% of wetting agent, from 0.5 to 15% of dispersant, from 0.1 to 5% of thickener, from 5 to 20% of antifreeze agent, from 0.1 to 2% of antifoam, from 1 to 20% of pigment and/or dye, from 0 to 15% of tackifier or adhesive, from 0 to 75% of filler/vehicle, and from 0.01 to 1% of preservative.