Spherical silica particles and resin composition using same
US-2024417544-A1 · Dec 19, 2024 · US
Rubber composition and pneumatic tire
US8993659B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993659-B2 |
| Application number | US-201113879434-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2011 |
| Priority date | Oct 15, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A rubber composition contains diene-based rubber, silica, a sulfur-containing silane coupling agent, and an amine compound. The amine compound is indole, indigo, and derivatives thereof each of which is represented by a predetermined formula. The content of the silica is 20 to 120 parts by mass based on 100 parts by mass of the diene-based rubber. The content of the sulfur-containing silane coupling agent is 3 to 15 parts by mass based on 100 parts by mass of the silica. The content of the amine compound is 0.5 to 20 parts by mass based on 100 parts by mass of the silica. By the use of the rubber composition with this composition, a tire having improved dispersibility of silica, excellent wet performance, and excellent rolling resistance and showing a suppressed decrease in reinforcing property can be produced.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rubber composition comprising diene-based rubber, silica, a sulfur-containing silane coupling agent, and an amine compound, wherein the amine compound is a compound represented by the following formula (I) and/or the following formula (II); the content of the silica is 20 to 120 parts by mass based on 100 parts by mass of the diene-based rubber; the content of the sulfur-containing silane coupling agent is 3 to 15 parts by mass based on 100 parts…
Assignees
Inventors
Classifications
- C08K3/36Primary
Chemistry & Metallurgy · mapped topic
- C08K5/3417Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8993659B2 cover?
- A rubber composition contains diene-based rubber, silica, a sulfur-containing silane coupling agent, and an amine compound. The amine compound is indole, indigo, and derivatives thereof each of which is represented by a predetermined formula. The content of the silica is 20 to 120 parts by mass based on 100 parts by mass of the diene-based rubber. The content of the sulfur-containing silane cou…
- Who is the assignee on this patent?
- Shimizu Katsunori, Mihara Satoshi, Yokohama Rubber Co Ltd
- 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 31 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).