Spherical silica particles and resin composition using same
US-2024417544-A1 · Dec 19, 2024 · US
Rubber composition
US8969462B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969462-B2 |
| Application number | US-201214114252-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 27, 2012 |
| Priority date | Apr 28, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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The present invention provides a rubber composition containing: (A) a rubber component containing from 90 to 100% by mass of at least one kind of diene rubber synthesized by solution polymerization and from 0 to 10% by mass of another kind of diene rubber; (B) silica having a n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area of 140 m 2 /g or more and less than 180 m 2 /g measured according to a method described in ASTM D3765-92; (C) at least one silane coupling agent selected from a polysulfide compound and a thioester compound; and (D) a vulcanization accelerator, the rubber composition after vulcanization having an average aggregated aggregate area (nm 2 ) of the silica of 2,200 or less, and thus provides a rubber composition that is improved in low-heat-generation property.
First claim
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The invention claimed is: 1. A rubber composition comprising: (A) a rubber component containing from 90 to 100% by mass of at least one kind of diene rubber synthesized by solution polymerization and from 0 to 10% by mass of another kind of diene rubber; (B) a silica having a n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area of 140 m 2 /g or more and less than 180 m 2 /g measured according to a method described in ASTM D3765-92; (C) at least one silane co…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8969462B2 cover?
- The present invention provides a rubber composition containing: (A) a rubber component containing from 90 to 100% by mass of at least one kind of diene rubber synthesized by solution polymerization and from 0 to 10% by mass of another kind of diene rubber; (B) silica having a n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area of 140 m 2 /g or more and less than 180 m 2…
- Who is the assignee on this patent?
- Horie Satoshi, Igarashi Takaaki, Bridgestone Corp
- What technology area does this patent fall under?
- Primary CPC classification C08K3/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 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).