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Rubber composition for tires and pneumatic tire using the same
US8946334B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8946334-B2 |
| Application number | US-60199508-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 7, 2008 |
| Priority date | Jun 6, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A rubber composition for tires, which includes a rubber component containing a natural rubber component consisting of at least either a natural rubber or an epoxidized natural rubber, and an inorganic filler containing silica, and a pneumatic tire using such a rubber composition for tires are provided. The rubber composition can be used as a rubber composition for clinch apex, and in this case, the rubber component preferably consists of the natural rubber component, with the inorganic filler being contained in a range of 50 to 80 parts by mass and carbon black being contained in a range of 2 to 5 parts by mass relative to 100 parts by mass of the rubber component. The rubber composition for tires can be used as a rubber composition for a bead apex, and in this case, the inorganic filler contains silica and clay, and the compounding amount of the clay is set in a range of 5 to 40 parts by mass relative to 100 parts by mass of the rubber component, with the total compounding amount of the silica and clay being set to 65 parts by mass or more relative to 100 parts by mass of the rubber component.
First claim
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The invention claimed is: 1. A rubber composition for a bead apex rubber for a tire, comprising: a rubber component containing a natural rubber component consisting of at least either a natural rubber or an epoxidized natural rubber; and an inorganic filler containing at least silica, carbon black, and calcined kaolin having a particle size of 0.3 to 5 μm, wherein the mass ratio of said natural rubber to said epoxidized natural rubber in said natural rubber component is 100:0…
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Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08K3/013Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8946334B2 cover?
- A rubber composition for tires, which includes a rubber component containing a natural rubber component consisting of at least either a natural rubber or an epoxidized natural rubber, and an inorganic filler containing silica, and a pneumatic tire using such a rubber composition for tires are provided. The rubber composition can be used as a rubber composition for clinch apex, and in this case,…
- Who is the assignee on this patent?
- Mizuno Yoichi, Kondo Toshikazu, Sumitomo Rubber Ind
- What technology area does this patent fall under?
- Primary CPC classification C08K3/013. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 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).