13-02-2014 дата публикации
Номер: US20140045733A1
Принадлежит:
The grease composition for a clean environment includes, a base oil, a thickener and a extreme-pressure agent, in which a kinetic viscosity of the base oil at 40° C. is 100˜300 mm/s, the thickener comprising a lithium complex soap, a content of the thickener is 10˜40 mass % with respect to the total amount of the grease composition. 1. A grease composition for a clean environment , comprising a base oil , a thickener , and an extreme-pressure agent , wherein{'sup': '2', 'a kinematic viscosity of the base oil at 40° C. is 100 to 300 mm/s,'}a lithium complex soap is incorporated as the thickener, andthe thickener content is 10 to 40 mass % with respect to the total amount of the composition.2. The grease composition for a clean environment according to claim 1 , wherein at least 50 mass % of a fatty acid component constituting the lithium complex soap is a hydroxycarboxylic acid.3. The grease composition for a clean environment according to claim 1 , wherein worked penetration of the grease is 200 to 400.4. The grease composition for a clean environment according to claim 1 , wherein the base oil comprises at least one selected from the group consisting of mineral oils in which the paraffin fraction is at least 80 mass % claim 1 , hydrocarbon-type synthetic oils claim 1 , alkylphenyl ethers claim 1 , and esters.5. The grease composition for a clean environment according to claim 1 , comprising at least 50 mass % of a hydrocarbon-type synthetic oil with respect to the total amount of the base oil.6. The grease composition for a clean environment according to claim 1 , wherein the content of the thickener is 15 to 35 mass % with respect to the total amount of the composition.7. The grease composition for a clean environment according to claim 1 , wherein the extreme-pressure agent comprises at least one selected from the group consisting of molybdenum dithiocarbamates claim 1 , molybdenum dithiophosphates claim 1 , zinc dithiophosphates claim 1 , and zinc ...
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