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Block diene elastomer for rubber compositions that can be used in pneumatic tires
US8927643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8927643-B2 |
| Application number | US-201113989188-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 23, 2011 |
| Priority date | Nov 23, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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The invention relates to a block diene elastomer corresponding to the following formula: where: n and m are each an integer of greater than or equal to 0, such that n+m≧1 and n+m≦20, each A block is composed of a polybutadiene, each B block is composed of a diene elastomer, the molar content of units resulting from conjugated dienes of which is greater than 15%, the B blocks being identical to one another, X is an organic or inorganic group which can comprise a functional group which interacts with a reinforcing filler, the number-average molecular weight Mn1 of each A block varies from 2 500 to 20 000 g/mol, the number-average molecular weight Mn2 of each B block varies from 80 000 to 350 000 g/mol, and the content of 1,2- linkages in each A block is between 1 and 20%.
First claim
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The invention claimed is: 1. Block diene elastomer corresponding to the following formula: where: n and m are each an integer of greater than or equal to 0, such that n+m≧1 and n+m≦20, each A block is composed of a polybutadiene, each B block is composed of a diene elastomer, the molar content of units resulting from conjugated dienes of which is greater than 15%, the B bl…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- B60C1/00Primary
Operations & Transport · mapped topic
- C08F299/00Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US8927643B2 cover?
- The invention relates to a block diene elastomer corresponding to the following formula: where: n and m are each an integer of greater than or equal to 0, such that n+m≧1 and n+m≦20, each A block is composed of a polybutadiene, each B block is composed of …
- Who is the assignee on this patent?
- Favrot Jean-Michel, Simon Nathalie, Marechal Jean Marc, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B60C1/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 06 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).