Rotary shaft seal
US-2015267816-A1 · Sep 24, 2015 · US
Sealing material
US11091622B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11091622-B2 |
| Application number | US-201816087179-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2018 |
| Priority date | Feb 16, 2017 |
| Publication date | Aug 17, 2021 |
| Grant date | Aug 17, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Provided is a sealing material having abrasion resistance usable for even construction machinery operated under severe conditions while keeping mechanical strength thereof. The sealing material includes a fluorinated resin composition containing the following materials (1) and (2), and further containing the following material (3) or (4). The materials are: (1) fluorinated resin, (2) bronze, (3) tricobalt tetraoxide, (4) a composite metal oxide containing cobalt and aluminum, and further containing at least one of metals selected from the group of chromium, titanium, magnesium, calcium, and lithium. Preferably, the fluorinated resin is polytetrafluoroethylene. Further, the sealing material is usable for construction machinery.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sealing material comprised of a fluorinated resin composition containing the following materials (1), (2), and (3), (1) fluorinated resin, (2) bronze, (3) tricobalt tetraoxide, wherein the tricobalt tetraoxide has a mean particle diameter of from 0.1 μm to 10 μm both inclusive. 2. The sealing material described in claim 1 , wherein the fluorinated resin is polytetrafluoroethylene. 3. The sealing material described in claim 1 , wherein the sealing material is usable for construction machinery. 4. A sealing material comprised of a fluorinated resin composition containing the following materials (1), (2), and (3), (1) fluorinated resin, (2) bronze, (3) a composite metal oxide containing cobalt and aluminum, and further containing at least one of metals selected from the group of chromium, titanium, magnesium, calcium, and lithium, wherein the composite metal oxide has a mean particle diameter of from 0.1 μm to 10 μm both inclusive, and wherein the composite metal oxide is added to the fluorinated resin at from 0.1 to 1.0 mass % both inclusive. 5. The sealing material described in claim 4 , wherein the fluorinated resin is polytetrafluoroethylene. 6. The sealing material described in claim 4 , wherein the sealing material is usable for construction machinery.
Assignees
Inventors
Classifications
- C08K3/22Primary
of metals · CPC title
Homopolymers or copolymers of tetrafluoroethene · CPC title
characterised by their structure; Selection of materials · CPC title
Additives containing two or more different additives of the same subgroup in C08K · CPC title
Fillers, pigments or reinforcing additives · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11091622B2 cover?
- Provided is a sealing material having abrasion resistance usable for even construction machinery operated under severe conditions while keeping mechanical strength thereof. The sealing material includes a fluorinated resin composition containing the following materials (1) and (2), and further containing the following material (3) or (4). The materials are: (1) fluorinated resin, (2) bronze, (3…
- Who is the assignee on this patent?
- Nok Corp
- What technology area does this patent fall under?
- Primary CPC classification C08K3/22. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 17 2021 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).