Method for producing rubber composition, and rubber composition
US-2016017121-A1 · Jan 21, 2016 · US
Additive for rubber, rubber composition, and tire using the same
US11339272B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11339272-B2 |
| Application number | US-201716464508-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2017 |
| Priority date | Nov 30, 2016 |
| Publication date | May 24, 2022 |
| Grant date | May 24, 2022 |
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- Title
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Abstract
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An additive for rubber that enables a rubber composition to have excellent low heat generating property and processability, a rubber composition containing the additive for rubber, and a tire using the same are provided. A rubber composition comprises a hydrazone compound represented by the following Formula (I):where R1 and R2 each independently represent a hydrogen atom, an alkyl group with a carbon number of 1 to 16, or an alkenyl group with a carbon number of 2 to 6, and A represents a group represented by the following Formula (A-1) or Formula (A-2):
First claim
Opening claim text (preview).
The invention claimed is: 1. A rubber composition comprising: a rubber component containing diene-based rubber; a filler; and an additive for rubber, comprising a hydrazone compound of at least one selected from Compound b to Compound i. 2. The rubber composition according to claim 1 , wherein a content of the filler is 10 parts to 160 parts by mass with respect to 100 parts by mass of the rubber component. 3. The rubber composition according to claim 1 , wherein the filler includes carbon black. 4. The rubber composition according to claim 3 , wherein a content of the filler is 10 parts to 160 parts by mass with respect to 100 parts by mass of the rubber component. 5. The rubber composition according to claim 1 , wherein the diene-based rubber is natural rubber. 6. The rubber composition according to claim 5 , wherein the filler includes carbon black. 7. The rubber composition according to claim 5 , wherein a content of the filler is 10 parts to 160 parts by mass with respect to 100 parts by mass of the rubber component. 8. The rubber composition according to claim 1 , wherein a content of the additive for rubber is 0.05 parts to 30 parts by mass with respect to 100 parts by mass of the rubber component. 9. The rubber composition according to claim 8 , wherein the diene-based rubber is natural rubber. 10. The rubber composition according to claim 8 , wherein the filler includes carbon black. 11. The rubber composition according to claim 8 , wherein a content of the filler is 10 parts to 160 parts by mass with respect to 100 parts by mass of the rubber component. 12. A tire comprising the rubber composition according to claim 1 .
Assignees
Inventors
Classifications
Compositions of the tread · CPC title
Carbon · CPC title
- C07C251/76Primary
to carbon atoms of a saturated carbon skeleton · CPC title
Compositions of natural rubber · CPC title
characterised by the tread rubber · CPC title
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- What does patent US11339272B2 cover?
- An additive for rubber that enables a rubber composition to have excellent low heat generating property and processability, a rubber composition containing the additive for rubber, and a tire using the same are provided. A rubber composition comprises a hydrazone compound represented by the following Formula (I):where R1 and R2 each independently represent a hydrogen atom, an alkyl group with a…
- Who is the assignee on this patent?
- Bridgestone Corp, Otsuka Chemical Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07C251/76. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 24 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).