Lubricating grease composition and process for preparing same
OwnerAnoop Kumar, Eltepu Sayanna +4inventors
InventorsAnoop Kumar, Eltepu Sayanna, Amar S. Verma, Kanta P. Naithani, Madan M. Poi, Akhilesh K. Bhatnagar
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Abstract
Lubricating grease compositions based on titanium complex soap thickener in mineral and synthetic base oils have been prepared for the first time. Tentative methods for preparing lubricating grease from this new type of titanium complex soap thickener have been described. High performance lubricating grease resulted from titanium terphthalate stearate complex soap thickener, exhibited excellent mechanical stability, high drop point, excellent oxidation stability, very good extreme pressure and antiwear properties, good water resistance and corrosion inhibiting characteristics.
Claims10
A lubricating grease composition comprising 2 to 20% by weight of titanium alkoxide, 2 to 20% by weight of carboxylic acids other than fatty acids, 5.0 to 35.0% by weight of fatty acids, 0.0 to 5.0% by weight of water and 20 to 90% by weight of an oil selected from the group consisting of mineral and synthetic oils.
A process for the preparation of a lubricating grease composition which comprises by forming in a first stage a mix by adding together fatty acid, carboxylic acid other than fatty acid and mineral or synthetic oil, stirring and heating such a mix to a temperature of 70.degree. to 100.degree. C., adding in a second stage titanium dioxide while maintaining said temperature, raising the temperature to 100.degree. to 200.degree. C. to form a thickened grease product, cooling said product and in a third stage optionally adding water thereto and then subjecting the mixture to the step of shearing.
A process for the preparation of a lubricating grease composition, comprising preparing in a first stage a mix by adding together fatty acid, carboxylic acid other than fatty acid, titanium alkoxide and mineral or synthetic oil in required proportions, heating such a mixture to a temperature of 160.degree. to 200.degree. C., cooling the resultant mix and in a second stage adding required water thereto, stirring the cooled mix and then further cooling said mix and subjecting it to a step of shearing.
Dependencies are inferred from the claim text.