Highly thermal conductive grease composition and cooling device using the same
AssigneeHitachi, Ltd.
InventorsTakao Uematsu, Yutaka Ito, Takahiro Daikoku, Akio Idei, Akihiro Yasuda
Life of this patent
Estimating the term…
Abstract
There are provided a highly thermal conductive grease composition having both a thermal conductivity and a satisfactory dispense property, and a cooling device applied with same. The grease composition comprises from 70 to 90% by volume of an inorganic powder which is a mixture containing at least two kinds of inorganic powders different from each other in each average particle size, and from 10 to 30% by volume of a base oil containing a mineral oil or a synthetic oil, the base oil further containing a surfactant in an amount of from 0.2 to 2.0% by weight based on the weight of the inorganic powder.
Claims7
A highly thermal conductive grease composition which comprises an inorganic powder and a base oil containing a mineral oil or a synthetic oil, wherein
- the inorganic powder is a mixture of at least two kinds of inorganic powders different from each other in each average particle size,
- the base oil further contains a surfactant in an amount of from 0.2 to 2.0% by weight based on the weight of the inorganic powder, and
- a content of the base oil is from 10 to 30% by volume, and a content of the inorganic powder is from 70 to 90% by volume.
Dependencies are inferred from the claim text.