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US 6,511,946 B1Granted
Water-miscible cooling lubricant concentrate
AssigneeFuchs Petrolub SE
InventorsHeinz Gerhard Theis, Rüdiger Schwab
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AssigneeFuchs Petrolub SE
InventorsHeinz Gerhard Theis, Rüdiger Schwab
Estimating the term…
Described is a water-miscible cooling lubricant concentrate which comprises natural or synthetic mineral oils, emulsifying agents, corrosion protection additives, solubilizers, means of preservation, metal inhibitors and other conventional additives, and, after dilution to form a 2 to 25% by weight aqueous solution, has a pH value between 7.0 and 7.5 as well as additionally as means of preservation and/or anticorrosive additive comprises a mixture of a) a conversion product of boric acid and a primary or tertiary alkanolamine and/or b) an ethoxylated and/or propoxylated fatty acid or a fatty acid alkanolamide as well as at least one further compound selected from the group comprised of c) a carboxylic acid imide, a phosphoric acid ester, a triazole, a thiadiazole, an isothiazolinone, an imidazole, a guanidine, an aromatic carboxylic acid and the 3-iodo-2-propinyl-carbamate and/or d) a methylol urea derivative.
A water-miscible cooling lubricant concentrate comprising a natural or synthetic mineral oil, an emulsifying agent, a solubilizer, a metal inhibitor and a preservation and corrosion protection agent which comprises:
A cooling lubricant comprising a natural or synthetic mineral oil, water, an emulsifying agent, a solubilizer, a metal inhibitor and a preservation and corrosion protection agent comprising:
Dependencies are inferred from the claim text.