Rubber composition for use in tires
US-10035901-B2 · Jul 31, 2018 · US
Rubber composition for tires
US10400094B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10400094-B2 |
| Application number | US-201716075121-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 26, 2017 |
| Priority date | Feb 4, 2016 |
| Publication date | Sep 3, 2019 |
| Grant date | Sep 3, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
A rubber composition includes a total of 45 to 65 parts by mass of an aromatic modified terpene resin having a softening point of 100° C. or higher and an oil per 100 parts by mass of a rubber component formed from 20 to 40 mass % of a butadiene rubber and from 60 to 80 mass % of another diene rubber containing an emulsion-polymerized styrene-butadiene rubber E-SBR1 having a bonded styrene content of 30 mass % or less and an emulsion-polymerized styrene-butadiene rubber E-SBR2 having a bonded styrene content of 35 mass % or greater; an amount of the E-SBR1 being from 85 to 92 mass % per 100 mass % of the emulsion-polymerized styrene-butadiene rubber; and a ratio (WB/WT) of the compounded amount of the butadiene rubber (WB) to the compounded amount of the aromatic modified terpene resin (WT) being from 0.5 to 3.0.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rubber composition for a tire, the rubber composition comprising a total of 45 to 65 parts by mass of an aromatic modified terpene resin having a softening point of 100° C. or higher and an oil per 100 parts by mass of a rubber component containing from 20 to 40 mass % of a butadiene rubber and from 60 to 80 mass % of another diene rubber; the rubber composition comprising 90 mass % or greater of an emulsion-polymerized styrene-butadiene rubber per 100 mass % of the other diene rubber; the emulsion-polymerized styrene-butadiene rubber being formed from an emulsion-polymerized styrene-butadiene rubber E-SBR1 having a bonded styrene content of 30 mass % or less and an emulsion-polymerized styrene-butadiene rubber E-SBR2 having a bonded styrene content of 35 mass % or greater; an amount of the E-SBR1 being from 85 to 92 mass % per 100 mass % of the emulsion-polymerized styrene-butadiene rubber; a ratio (WB/WT) of a compounded amount of the butadiene rubber (WB) to a compounded amount of the aromatic modified terpene resin (WT) being from 0.5 to 3.0; and from 50 to 120 parts by mass of filler containing silica and carbon black per 100 parts by mass of the rubber component, the filler containing 10 mass % or greater of silica having a CTAB (cetyl trimethylammonium bromide) specific surface area of 120 to 180 m 2 /g. 2. A pneumatic tire using the rubber composition for a tire described in claim 1 .
Assignees
Inventors
Classifications
- C08L91/00Primary
Compositions of oils, fats or waxes; Compositions of derivatives thereof · CPC title
Copolymers of styrene (C08L29/08, C08L35/06, C08L55/02 take precedence) · CPC title
- C08L9/00Primary
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title
Butadiene · CPC title
Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition · CPC title
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Frequently asked questions
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- What does patent US10400094B2 cover?
- A rubber composition includes a total of 45 to 65 parts by mass of an aromatic modified terpene resin having a softening point of 100° C. or higher and an oil per 100 parts by mass of a rubber component formed from 20 to 40 mass % of a butadiene rubber and from 60 to 80 mass % of another diene rubber containing an emulsion-polymerized styrene-butadiene rubber E-SBR1 having a bonded styrene cont…
- Who is the assignee on this patent?
- Yokohama Rubber Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08L91/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 03 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).