Abstract

A high-temperature grease is disclosed comprising (A) 20 to 88 wt %, based on the total weight of the high-temperature grease, of a base oil, (B) 1 to 55 wt. %, based on the total weight of the high-temperature grease, of a fluorine-free material, the fluorine-free material having an average particle size (D50) of less than 80 μm and being selected from the group consisting of (B1) a fluorine-free polymer which has aromatic, heteroaromatic, and/or heterocyclic groups and a melting or decomposition point above 200° C., fluorine-free phthalocyanin, and mixtures thereof; (B2) a melamine derivative, and/or 1,3,5-triazine-2,4,6 (1H,3H,5H)-trithione; and (B3) mixtures which contain a fluorine-free polymer and/or a fluorine-free phthalocyanin according to option B1 and a melamine derivative and/or 1,3,5-triazine-2,4,6 (1H,3H,5H)-trithione according to option B2, wherein the high-temperature grease does not contain polytetrafluorothylene and/or contains polytetrafluorothylene in a proportion of less than 6 wt. %, based on the total weight of the grease.

IPC Classes  ?

• C10M 169/06 - Mixtures of thickeners and additives
• C10N 20/02 - ViscosityViscosity index
• C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
• C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy

Abstract

The invention relates to a high-temperature grease comprising (A) 20 to 88 wt %, based on the overall weight of the grease, of a base oil, (B) 1 to 55 wt. %, based on the overall weight of the grease, of a fluorine-free material, said fluorine-free material having an average particle size (D50) of less than 80 μm wherein the grease does not contain polytetrafluorothylene and/or contains polytetrafluorothylene in a proportion of less than 4 wt. %, based on the overall weight of the grease.

IPC Classes  ?

• C10M 169/06 - Mixtures of thickeners and additives
• C10N 10/04 - Groups 2 or 12
• C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
• C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy

Abstract

A lubricant grease composition is disclosed, the lubricant grease composition including a base oil and a thickener. The thickener includes an aluminum-based complex soap and a polyurea thickener, wherein the lubricant grease is configured for lubrication of surfaces of components in which an upper use temperature of the lubricant grease composition is at least 90° C.

IPC Classes  ?

• C10M 169/02 - Mixtures of base-materials and thickeners
• C10M 107/02 - Hydrocarbon polymersHydrocarbon polymers modified by oxidation
• C10M 117/08 - Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to a carbon atom of a six-membered aromatic ring
• C10M 119/24 - Lubricating compositions characterised by the thickener being a macromolecular compound containing nitrogen
• C10M 123/04 - Lubricating compositions characterised by the thickener being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular compound
• C10N 40/06 - Instruments or other precision apparatus, e.g. damping fluids
• C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy

Abstract

The invention relates to a high-temperature grease comprising (A) 20 to 88 wt%, based on the total weight of the high-temperature grease, of a base oil, (B) 1 to 55 wt.%, based on the total weight of the high-temperature grease, of a fluorine-free material, said fluorine-free material having an average particle size (D50) of less than 80 µm, measured according to ISO 13320-1, publication date 2020-01, and being selected from the group consisting of (B1) a fluorine-free polymer which has aromatic, heteroaromatic, and/or heterocyclic groups and a melting or decomposition point, measured according to DIN EN ISO 11357-1, publication date 2008-04, above 200 °C, fluorine-free phthalocyanin, and mixtures thereof; (B2) a melamine derivative, in particular melamine cyanurate, melamine phosphate, and/or 1,3,5-triazine-2,4,6 (1H,3H,5H)-trithione; and (B3) mixtures which contain a fluorine-free polymer and/or a fluorine-free phthalocyanin according to option B1 and a melamine derivative and/or 1,3,5-triazine-2,4,6 (1H,3H,5H)-trithione according to option B2, wherein the high-temperature grease does not contain polytetrafluorothylene and/or contains polytetrafluorothylene in a proportion of less than 6 wt.%, based on the total weight of the grease.

IPC Classes  ?

• C10M 169/02 - Mixtures of base-materials and thickeners
• C10M 171/06 - Particles of special shape or size