Rubber Composition and Pneumatic Tire Including the Same
US-2017130036-A1 · May 11, 2017 · US
Rubber composition for a tire tread
US10214636B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10214636-B2 |
| Application number | US-201715431348-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 13, 2017 |
| Priority date | Sep 22, 2016 |
| Publication date | Feb 26, 2019 |
| Grant date | Feb 26, 2019 |
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- Title
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- Abstract
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Abstract
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A rubber composition for a tire tread includes 6 to 20 parts by weight of a silane coupling agent having a mercapto group and SiO bond; and 1 to 20 parts by weight of terpene resin having a softening point of 130° C. or more and a weight average molecular weight of 1,000 or more, to 100 parts by weight of raw rubber.
First claim
Opening claim text (preview).
What is claimed is: 1. A rubber composition for a tire tread, comprising: 6 to 20 parts by weight of a silane coupling agent having a thioester group and SiO bond; and 1 to 20 parts by weight of terpene resin having a softening point of 130° C. or more and a weight average molecular weight of 1,000 or more, to 100 parts by weight of raw rubber, wherein the raw rubber comprises: 10 to 30% by weight of end modified styrene-butadiene rubber, in which a styrene unit content is 20% by weight or less and a vinyl unit content is 30% by weight or less, 30% to 50% by weight of styrene-butadiene rubber, and 20% to 60% by weight of butadiene rubber or natural rubber. 2. The composition according to claim 1 , wherein the silane coupling agent is 3-(octanoylthio)propyl triethoxysilane represented by Formula 1 below 3. A tire comprising the rubber composition according to claim 2 . 4. The composition according to claim 1 , wherein the raw rubber is natural rubber, synthetic rubber or a mixture thereof. 5. A tire comprising the rubber composition according to claim 4 . 6. A tire comprising the rubber composition according to claim 1 .
Assignees
Inventors
Classifications
- C08L9/00Primary
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title
Compositions of the tread · CPC title
containing sulfur {(C08K5/5477 takes precedence)} · CPC title
Compositions of natural rubber · CPC title
containing four or more polymers in a blend · CPC title
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- What does patent US10214636B2 cover?
- A rubber composition for a tire tread includes 6 to 20 parts by weight of a silane coupling agent having a mercapto group and SiO bond; and 1 to 20 parts by weight of terpene resin having a softening point of 130° C. or more and a weight average molecular weight of 1,000 or more, to 100 parts by weight of raw rubber.
- Who is the assignee on this patent?
- Kumho Tire Co Inc
- What technology area does this patent fall under?
- Primary CPC classification C08L9/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 26 2019 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).