A lubricating grease is formed by a method including preparing a lithium formulation and cooling the lithium formulation to about 175 degree Celsius ( C.). The method includes preparing a calcium sulfonate formulation and combining the lithium formulation and the calcium sulfonate formulation in proportions appropriate to the desired performance criteria. The method includes mixing the lithium formulation and the calcium sulfonate formulation.

The present disclosure concerns a grease composition comprising relative to the total weight of the grease composition: a) from 70 to 95% by weight of base oil(s) each having a 28-day biodegradability of at least 60% as measured according to standard OECD 301B, b) from 1 to 20% by weight of thickener(s) chosen from among fatty acid metal salts, each thickener having a 28-day biodegradability of at least 60% as measured according to standard OECD 301B; c) from 0.5 to 10% by weight of calcium carbonate having a D50 particle size greater than or equal to 3 m and a D90 particle size greater than or equal to 10 m.

The present disclosure concerns a grease composition comprising relative to the total weight of the grease composition: a) from 70 to 95% by weight of base oil(s) each having a 28-day biodegradability of at least 60% as measured according to standard OECD 301B, b) from 1 to 20% by weight of thickener(s) chosen from among fatty acid metal salts, each thickener having a 28-day biodegradability of at least 60% as measured according to standard OECD 301B; c) from 0.5 to 10% by weight of calcium carbonate having a D50 particle size greater than or equal to 3 m and a D90 particle size greater than or equal to 10 m.

A grease composition includes a base oil, a thickener, and an extreme pressure additive. The base oil contains trimellitate ester and poly--olefin. A proportion of the trimellitate ester to a total amount of the trimellitate ester and the poly--olefin is 10.0 mass % or more and 60.0 mass % or less. The thickener contains lithium 12-hydroxystearate and lithium stearate. A proportion of the lithium 12-hydroxystearate to a total amount of the lithium 12-hydroxystearate and the lithium stearate is 5.0 mass % or more and 95.0 mass % or less. The extreme pressure additive contains molybdenum dialkyl dithiocarbamate. A proportion of the molybdenum dialkyl dithiocarbamate to a total amount of the trimellitate ester, the poly-a-olefin, the lithium 12-hydroxystearate, the lithium stearate, and the molybdenum dialkyl dithiocarbamate is 0.6 mass % or more and 16.0 mass % or less.

A grease composition includes a thickener, a base oil, and an additive. The additive contains 0.1 to 10% by mass of a molybdenum-containing extreme-pressure agent, 0.1 to 10% by mass of Na sebacate, and 0.1 to 5% by mass of a sulfonate. A penetration of the grease composition is 235 to 370.

A lubricant composition, including 20 to 99.5 wt. %, based on a total weight of the lubricant composition, of a base oil, the base oil having a solubility for ionic liquid methyltrioctylammonium-bis(fluorosulfonyl)imide of at least 3 wt. % at a room temperature of 20 C. The base oil contains a base stock A in a proportion of at least 50 wt. %, based on a total weight of the base oil, the base stock A having a solubility for the ionic liquid methyltrioctylammonium-bis(fluorosulfonyl)imide of at least 3 wt. % at a room temperature of 20 C. The lubricant composition further includes 0.5 to 80% wt. %, based on the total weight of the lubricant composition, of an ionic liquid whose anion is bis(fluorosulfonyl)imide.

The object of the invention is a method for the production of lithium complex soap lubricating greases or lithium-calcium complex soap lubricating greases and corresponding lubricating greases produced by this process and their use in slide and rolling bearings.

The instant disclosure provides a grease composition containing an ash-free phosphonate ester mixture, which comprises of an ash-free phosphonate ester mixture of a cyclic phosphonate ester species and an oligomeric phosphonate ester species. The grease composition further includes a metallic soap thickener. The grease compositions disclosed herein demonstrate improved anti-wear protection under very demanding conditions and load carry.

Greases that are suitable for use in high temperature applications and are cost-effective alternatives to lithium greases. The greases are prepared from an oil of lubricating viscosity; 1.0 to 22.5 wt % of an overbased metal detergent; 5.0 to 18.5 wt % of a metal carboxylate soap component that is the reaction product of a metal hydroxide and/or metal carbonate with a fatty acid; 0.2 to 8.0 wt % of an oxygenate promoter (for example alcohols and/or organic acids); and 1 to 15 wt % of water. The greases have dropping points of at least 220 C., as measured using ASTM D2265.