Grease, antifriction bearing, antifriction bearing device, and information recording/reproducing device
US-10968954-B2 · Apr 6, 2021 · US
Thickener, grease, method for producing the same, and grease-packed bearing
US9150809B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9150809-B2 |
| Application number | US-201113579686-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2011 |
| Priority date | Feb 18, 2010 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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Abstract
Official abstract text for this publication.
The present invention provides a thickener which allows grease having an excellent durability in a high-temperature and high-speed condition to be produced, the grease containing the thickener, a method of producing the thickener and the grease, and a grease-packed bearing. A grease ( 7 ) to be packed in a bearing ( 1 ) is obtained by adding a thickener for a grease comprising a compound shown by a chemical formula (1) shown below or a compound shown by a chemical formula (2) shown below; In the chemical formula (1) or the chemical formula (2), R 1 shows a diamine residue or a diisocyanate residue; R 2 shows a residue of a dicarboxylic acid in which two adjacent carbon atoms form an imide ring or residues of derivative of the dicarboxylic acid; R 3 shows a tetracarboxylic acid residue or residues of derivatives of the tetracarboxylic acid; R 4 shows a hydrogen atom residue, a monoamine residue or a monoisocyanate residue; and n indicates integers of 0 through 5.
First claim
Opening claim text (preview).
The invention claimed is: 1. A thickener to be added to a grease, wherein said thickener for a grease comprising a compound shown by a chemical formula (1) shown below; [Chemical formula 1] wherein said chemical formula (1), R 1 a diisocyanate residue; R 2 shows a residue of a dicarboxylic acid in which two adjacent carbon atoms form an imide ring or residues of deri…
Assignees
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9150809B2 cover?
- The present invention provides a thickener which allows grease having an excellent durability in a high-temperature and high-speed condition to be produced, the grease containing the thickener, a method of producing the thickener and the grease, and a grease-packed bearing. A grease ( 7 ) to be packed in a bearing ( 1 ) is obtained by adding a thickener for a grease comprising a compound shown …
- Who is the assignee on this patent?
- Kawamura Takayuki, Ntn Toyo Bearing Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C10M119/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).