Concentrate for producing a cooling and release agent or a cooling and lubricating agent and such cooling and release agents and cooling and lubricating agents

1. An agent for reusable casting dies such as a steel casting die or for machining with an active substance dissolved in water, the agent comprising:

a concentrate comprising 10 to 50 wt.-% of a protein based on a weight of the concentrate,

wherein,

the concentrate is diluted in water at a ratio of from 1:20 to 1:1,200,

the protein has a molecular weight of from 1,000 to 7,000 Dalton, and

the protein is a hydrolysate.

2. The agent as recited in claim 1 , wherein the protein has a nitrogen content of from 16 to 19% based on the weight of the protein.

3. The agent as recited in claim 1 , wherein the concentrate further comprises a hydroxyproline content of from 10 to 15%.

4. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 10 wt.-% of a hydrocolloid or from 0.1 to 10 wt.-% of a polymer.

5. The agent as recited in claim 4 , wherein the hydrocolloid is selected from at least one of an agar-agar, a locust bean gum flour, a pectin, a gum arabic, a starch, a corn flour, and the polymer is a polyethylene glycol or a polyvinyl alcohol.

6. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 5 wt.-% of a preserving agent.

7. The agent as recited in claim 6 , wherein the preserving agent is potassium sorbate or ascorbic acid.

8. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 5 wt.-% of an ionic surfactant.

9. The agent as recited in claim 8 , wherein the ionic surfactant is sodium dodecyl sulphate or sodium lauryl sulphate.

10. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 5 wt-% of an organic acid or an inorganic acid.

11. The agent as recited in claim 10 , wherein the organic acid or the inorganic acid is at least one of a citric acid, a lactic acid, a formic acid, an oxalic acid, a phosphoric acid and a para-toluene sulphonic acid.

12. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 5 wt.-% of an anionic surfactant.

13. The agent as recited in claim 12 , wherein the anionic surfactant is produced on the basis of at least one of long-chained fatty acids and terpenes.

14. The agent as recited in claim 1 , wherein the concentrate further comprises from 1 to 10 wt.-% of a softener.

15. The agent as recited in claim 14 , wherein the softener is a polyol.

16. The agent as recited in claim 15 , wherein the polyol is glycerin or sorbitol.

17. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 1 wt.-% of a fluxant.

18. The agent as recited in claim 17 , wherein the fluxant is a sodium borate, a lithium fluoride, a lithium chloride, or a lithium carbonate.

19. The agent as recited in claim 1 , wherein the concentrate further comprises from 100 to 500 ppm of a catalyst.

20. The agent as recited in claim 19 , wherein the catalyst is an iron oxide, a ferric pyrophosphate, vanadium, a vanadium oxide, chrome, or a chrome oxide.

21. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.01 to 1 ppm of a bactericide/fungicide.

22. The agent as recited claim 21 , wherein the bactericide/fungicide is at least one of a silver salt, a zinc salt and a copper salt.

23. The agent as recited in claim 1 , wherein the concentrate further comprises from 0.1 to 1 wt.-% of a solid lubricant.

24. The agent as recited in claim 23 , wherein the solid lubricant is at least one of molybdenum disulphide and boron nitride.

25. The agent as recited in claim 1 , wherein the concentrate is diluted in water at a ratio of from 1:100 to 1:1,200.

26. The agent as recited in claim 25 , wherein the ratio is 1:500 to 1:1,000.

27. The agent as recited in claim 1 , wherein the concentrate is diluted in water at a ratio of from 1:20 to 1:500.