Elastomeric Composites Containing Modified Fillers And Functionalized Elastomers
US-2015183962-A1 · Jul 2, 2015 · US
HNBR composition and HNBR crosslinked body
US9920187B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9920187-B2 |
| Application number | US-201515128335-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 20, 2015 |
| Priority date | Mar 28, 2014 |
| Publication date | Mar 20, 2018 |
| Grant date | Mar 20, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
An object of the present invention is to provide an HNBR composition and an HNBR crosslinked body excellent in abrasion resistance and pressure resistance. The object is achieved by an HNBR composition containing 3 to 20 parts by weight of carbon fibers or wollastonite as a hard filler per 100 parts by weight of a hydrogenated nitrile rubber and containing 72 to 87 parts by weight of a carbon black having an average particle diameter of 40 to 50 nm, an iodine adsorption of 35 to 49 g/kg, and a DBP oil absorption of 100 to 160 ml/100 g, as well as an HNBR crosslinked body acquired by crosslinking the HNBR composition.
First claim
Opening claim text (preview).
We claim: 1. An HNBR composition containing 3 to 20 parts by weight of carbon fibers or wollastonite fibers as a hard filler per 100 parts by weight of a hydrogenated nitrile rubber and containing 72 to 87 parts by weight of a carbon black having an average particle diameter of 40 to 50 nm, an iodine adsorption of 35 to 49 g/kg, and a DBP oil absorption of 100 to 160 ml/100 g. 2. The HNBR composition according to claim 1 , wherein the carbon black is FEF carbon black or FEF-LS carbon black. 3. An HNBR crosslinked body acquired by crosslinking the HNBR composition according to claim 1 or 2 . 4. Use of the HNBR crosslinked body according to claim 3 as a sealing material in a pulley portion for CVT. 5. A sealing material in a pulley portion for CVT acquired by molding the HNBR crosslinked body according to claim 3 . 6. The sealing material in a pulley portion for CVT according to claim 5 , wherein the sealing material is a D-ring. 7. An HNBR crosslinked body acquired by crosslinking the HNBR composition according to claim 2 . 8. Use of the HNBR crosslinked body according to claim 7 as a sealing material in a pulley portion for CVT. 9. A sealing material in a pulley portion for CVT acquired by molding the HNBR crosslinked body according to claim 7 . 10. The sealing material in a pulley portion for CVT according to claim 9 , wherein the sealing material is a D-ring.
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Classifications
Additives being defined by their diameter · CPC title
Additives being defined by their surface area · CPC title
characterised by their structure; Selection of materials · CPC title
of which the bearing parts are relatively axially adjustable · CPC title
Carbon · CPC title
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- What does patent US9920187B2 cover?
- An object of the present invention is to provide an HNBR composition and an HNBR crosslinked body excellent in abrasion resistance and pressure resistance. The object is achieved by an HNBR composition containing 3 to 20 parts by weight of carbon fibers or wollastonite as a hard filler per 100 parts by weight of a hydrogenated nitrile rubber and containing 72 to 87 parts by weight of a carbon b…
- Who is the assignee on this patent?
- Nok Corp
- What technology area does this patent fall under?
- Primary CPC classification C08K7/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 20 2018 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).