JPS5773086A - Heat-resistant grease - Google Patents
Heat-resistant greaseInfo
- Publication number
- JPS5773086A JPS5773086A JP55149945A JP14994580A JPS5773086A JP S5773086 A JPS5773086 A JP S5773086A JP 55149945 A JP55149945 A JP 55149945A JP 14994580 A JP14994580 A JP 14994580A JP S5773086 A JPS5773086 A JP S5773086A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- resistant grease
- compound
- particle diameter
- incorporating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Lubricants (AREA)
Abstract
PURPOSE: A heat-resistant grease, prepared by ultrafine powder of a polyimide compound as a thickening agent incorporating (viscosity increasing agent) in a base oil, and capable of exhibiting improved lubricating effects for a long time at a high temperature under high load conditions.
CONSTITUTION: A heat-resistant grease prepared by incorporating usualy 10W 30wt% polymide compound having a particle diameter ≤5μ, preferably an average particle diameter of 2W5μ, as a thickening agent (viscosity increasing agent) in a base oil, e.g. mineral oil or ester oil. The polyimide compound is obtained as follows: A polyamic acid is formed from a diamine, e.g. diaminodiphenylmethane, and a tetracarboxylic acid (anhydride), e.g. pyromellitic dianhydride, and the resultant polyamic acid is then condensed through dehydration under heating to give the polymide compound expressed by the formula (R1 is bi functional organic group; R2 is tetrafunctional organic group; n is ≥2).
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55149945A JPS5773086A (en) | 1980-10-25 | 1980-10-25 | Heat-resistant grease |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55149945A JPS5773086A (en) | 1980-10-25 | 1980-10-25 | Heat-resistant grease |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5773086A true JPS5773086A (en) | 1982-05-07 |
Family
ID=15486002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55149945A Pending JPS5773086A (en) | 1980-10-25 | 1980-10-25 | Heat-resistant grease |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5773086A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57109896A (en) * | 1980-12-26 | 1982-07-08 | Toshiba Chem Corp | Heat-resistant grease |
WO2011102441A1 (en) * | 2010-02-18 | 2011-08-25 | Ntn株式会社 | Thickener, grease, method for producing thickener, method for producing grease, and greased bearing |
JP2015120915A (en) * | 2014-12-24 | 2015-07-02 | Ntn株式会社 | Grease and production method thereof, and grease-sealed shaft-bearing |
JP2021123674A (en) * | 2020-02-07 | 2021-08-30 | 株式会社ニッペコ | Grease composition |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3025241A (en) * | 1960-05-16 | 1962-03-13 | California Research Corp | High temperature stable grease compositions thickened with tetraimides of dipyromellitic acid anhydrides |
JPS54113605A (en) * | 1978-02-27 | 1979-09-05 | Nippon Koyu Kk | Lubricating grease composition intensified with imide base compound |
-
1980
- 1980-10-25 JP JP55149945A patent/JPS5773086A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3025241A (en) * | 1960-05-16 | 1962-03-13 | California Research Corp | High temperature stable grease compositions thickened with tetraimides of dipyromellitic acid anhydrides |
JPS54113605A (en) * | 1978-02-27 | 1979-09-05 | Nippon Koyu Kk | Lubricating grease composition intensified with imide base compound |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57109896A (en) * | 1980-12-26 | 1982-07-08 | Toshiba Chem Corp | Heat-resistant grease |
WO2011102441A1 (en) * | 2010-02-18 | 2011-08-25 | Ntn株式会社 | Thickener, grease, method for producing thickener, method for producing grease, and greased bearing |
US9150809B2 (en) | 2010-02-18 | 2015-10-06 | Ntn Corporation | Thickener, grease, method for producing the same, and grease-packed bearing |
JP2015120915A (en) * | 2014-12-24 | 2015-07-02 | Ntn株式会社 | Grease and production method thereof, and grease-sealed shaft-bearing |
JP2021123674A (en) * | 2020-02-07 | 2021-08-30 | 株式会社ニッペコ | Grease composition |
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