High-temperature grease

2:

• The lubricating grease according to claim 1, wherein the fluorine-free material is a fluorine-free polymer in accordance with option B1 and has a numerical ratio of aromatic carbon atoms and/or of carbon atoms contained in heteroaromatic structures of at least 20%, each based on the overall number of carbon atoms in the fluorine-free polymer.

3:

• The lubricating grease of claim 1, wherein the fluorine-free material is a fluorine-free polymer in accordance with option B1 and is selected from the group consisting of polyaryletherketone (PAEK), polyetheretherketone (PEEK), crosslinked PAEK, crosslinked PEEK, polyphenylene sulfide (PPS), polyethersulphone (PES), poly(amide)imide (PAI), perylene imide, polycarbonate (PC), polyquinoline, polyquinoxaline, morpholine, phthalocyanine, melamine resin, and blends thereof.

4:

• The lubricating grease of claim 1, wherein the fluorine-free material is crosslinked PAEK, and/or crosslinked PEEK.

6:

• The lubricating grease of claim 1, wherein the fluorine-free material contains pyrogenic silicon dioxide functionalized with organic groups, in combination with melamine cyanurate and in combination with hexagonal boron nitride.

7:

• The lubricating grease of claim 1, wherein the fluorine-free material contains pyrogenic silicon dioxide functionalized with organic groups, in combination with melamine cyanurate and in combination with hexagonal boron nitride.

8:

• The lubricating grease of claim 1, wherein the fluorine-free material and/or the lubricating grease is NSF/H1 approved.

9:

• The lubricating grease of claim 1, wherein the fluorine-free material functions as a thickener and the proportion of the fluorine-free material in relation to the overall weight of the lubricating grease is 10 to 55 wt. %.

10:

• The lubricating grease of claim 9, wherein the lubricating grease contains a further thickener, other than the fluorine-free material, in a proportion of 3 wt. % to 30 wt. % based on the overall weight of the lubricating grease.

11:

• The lubricating grease of claim 1, wherein the fluorine-free material functions as an additive to reduce the coefficient of friction, wherein the proportion of the fluorine-free material, based on the overall weight of the lubricating grease, is from 1 wt. % to 10 wt. %.

12:

• The lubricating grease of claim 11, wherein the lubricating grease contains a thickening agent, other than the fluorine-free material, in a proportion of 3 wt. % to 40 wt. % based on the overall weight of the lubricating grease.

14:

• The lubricating grease of claim 1, wherein the fluorine-free material is inorganic layered silicate, talcum, bentonite, mica, pyrogenic silicon dioxide, pyrogenic silicon dioxide functionalized with organic groups, and/or mixtures thereof, in combination with a layered solid lubricant that is not an inorganic layered silicate.

16:

• A use of the lubricating grease of claim 1 for the lubrication of tribological systems, in applications in which a high top usage temperature of more than 160° C. is necessary, and/or for the lubrication of tribological systems in which an application spectrum is necessary in the temperature range from −40° C. to 160° C.

17:

• A use of the lubricating grease of claim 1 for the lubrication of tribological systems, which are in contact with foodstuffs and/or drinking water, in particular, of working apparatus in food processing and/or for gas and (drinking) water fittings.

18:

• The use according to claim 17, wherein the fluorine-free material is silicone resin, lignin and mixtures thereof (option B2) and the lubricating grease is used for the lubrication of working apparatus in food processing and/or for gas and (drinking) water fittings.

19:

• A use of the lubricating grease of claim 1 for the lubrication of tribological systems, which are in contact with foodstuffs and/or drinking water, in a working apparatus in food processing, chains for transport in freezing tunnels and conveyer belts, transmissions, antifriction and plain bearings, pneumatic cylinders, seals, installation pastes, valves and fittings, or for gas and (drinking) water fittings;
• and/or for the lubrication of components in the automotive industry, in ball-type linear drives in automotive steering applications, actuators;
• transmissions, plastic transmissions, seals, seals in sliding sunroofs, brake boosters and/or antifriction bearings, plain bearings and/or linear guides.