Tire sidewall composition and tire sidewall
US-2024392114-A1 · Nov 28, 2024 · US
Sulfur-crosslinkable rubber blend and vehicle pneumatic tire
US9631074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9631074-B2 |
| Application number | US-201415024882-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 25, 2016 |
| Priority date | Sep 27, 2013 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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Abstract
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A sulfur-crosslinkable rubber blend which includes from 60 to 100 phr of at least one butadiene rubber and 51 phr or more of at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from aromatic monomers. In some aspects the sulfur-crosslinkable rubber has from 51 to 300 phr of the at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from aromatic monomers, and in some cases, the hydrocarbon resin is built up to the extent of 30 to 100 wt. % from at least one aromatic monomer from the group consisting of alpha-methylstyrene and/or styrene and/or vinyltoluene and/or indene and/or coumarone and/or methylindene and/or methylcoumarone.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sulfur-crosslinkable rubber blend comprising: from 60 to 100 phr of at least one butadiene rubber; and, 51 phr or more of at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from at least two aromatic monomers, wherein the at least one hydrocarbon resin has a molecular weight Mw (weight average) of from 1300 to 5,000 g/mol and a softening point according to ASTM E 28 (ring and ball) of from 60 to 95° C. 2. The sulfur-crosslinkable rubber blend of claim 1 comprising 51 to 300 phr of the at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from aromatic monomers. 3. The sulfur-crosslinkable rubber blend of claim 1 wherein the hydrocarbon resin is built up to the extent of 30 to 100 wt. % from aromatic monomers selected from the group consisting of alpha-methylstyrene and/or styrene and/or vinyltoluene and/or indene and/or coumarone and/or methylindene and/or methylcoumarone. 4. The sulfur-crosslinkable rubber of claim 1 wherein the hydrocarbon resin is built up to the extent of 51 to 100 wt. % from aromatic monomers. 5. The sulfur-crosslinkable rubber blend of claim 1 wherein the hydrocarbon resin is a copolymer from alpha-methylstyrene and styrene, which is built up to the extent of 100 wt. % from alpha-methylstyrene and styrene. 6. The sulfur-crosslinkable rubber blend of claim 1 wherein the hydrocarbon resin has a softening point according to ASTM E 28 (ring and ball) of from 80 to 90° C. 7. The sulfur-crosslinkable rubber blend of claim 1 wherein the hydrocarbon resin has a molecular weight Mw (weight average) of from 1300 to 2,500 g/mol. 8. The sulfur-crosslinkable rubber blend of claim 1 further comprising from 10 to 300 phr of at least one silica. 9. A vehicle pneumatic tire comprising the sulfur-crosslinkable rubber blend of claim 1 . 10. The vehicle pneumatic tire as claimed in claim 9 , wherein the sulfur-crosslinkable rubber blend is comprised in a tread of the vehicle pneumatic tire.
Assignees
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Classifications
Copolymers of styrene (C08L29/08, C08L35/06, C08L55/02 take precedence) · CPC title
Compositions of the tread · CPC title
Homopolymers or copolymers of hydrocarbons · CPC title
Copolymers with styrene · CPC title
having improved processability or containing aids for moulding methods · CPC title
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- What does patent US9631074B2 cover?
- A sulfur-crosslinkable rubber blend which includes from 60 to 100 phr of at least one butadiene rubber and 51 phr or more of at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from aromatic monomers. In some aspects the sulfur-crosslinkable rubber has from 51 to 300 phr of the at least one hydrocarbon resin which is built up to the extent of 30 to 100 wt. % from a…
- Who is the assignee on this patent?
- Continental Reifen Deutschland Gmbh, Continental Reifen Deutchland GmbH
- 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 Apr 25 2017 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).