DIUREA GREASE COMPOSITION

PROBLEM TO BE SOLVED: To provide a grease composition in which variation of viscosity is small even if it is used at a high temperature for a long period of time, oil separation is suppressed, and elongation of durability is attained. SOLUTION: The diurea grease composition contains a thickener in w...

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Main Authors YOKOUCHI ATSUSHI, NAMIKI MINORU, ENDO TOSHIAKI, YOSHINARI TERU, TODA YUJIRO, NAKATANI SHINYA
Format Patent
LanguageEnglish
Published 02.10.2008
Subjects
CHEMISTRY
FUELS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:PROBLEM TO BE SOLVED: To provide a grease composition in which variation of viscosity is small even if it is used at a high temperature for a long period of time, oil separation is suppressed, and elongation of durability is attained. SOLUTION: The diurea grease composition contains a thickener in which diurea compound A and diurea compound B having a specific molecular structure respectively are mixed in a base oil comprising at least one kind of a dialkyl diphenyl ether, an ester based synthetic oil and a poly-α-olefin oil such that the ratio of 10-30 mass% of the thicknener, <obtained by mixing diurea compound A: diurea compound B=50-90:50-10 (mol%), is contained> based on the whole amount of the grease. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070074897