A rubber compound for tyre production
US-2016280886-A1 · Sep 29, 2016 · US
Rubber compounds for pneumatic tyres comprising recycled carbon black
US12090789B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12090789-B2 |
| Application number | US-201816621039-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2018 |
| Priority date | Jun 29, 2017 |
| Publication date | Sep 17, 2024 |
| Grant date | Sep 17, 2024 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A rubber compound for pneumatic tyres comprising a cross-linkable unsaturated-chain polymer base, carbon black, a silane bonding agent and a vulcanization system. Part of the carbon black is carbon black from pyrolysis having a surface functionalization deriving from a treatment with an aminoacidic compound comprising at least one thiol group or a disulfide group.
First claim
Opening claim text (preview).
The invention claimed is: 1. Rubber compound for pneumatic tyres consisting of a cross-linkable unsaturated-chain polymer base, carbon black, wherein a part of said carbon black is recycled carbon black having a surface functionalization, a silane bonding agent, a vulcanization system, and optionally an antioxidant; said compound being characterized in that said recycled carbon black is obtained from the pyrolysis of used pneumatic tyres, and wherein said recycled carbon black has a surface functionalization derived from treatment of the recycled carbon black with an aminoacidic compound comprising at least one thiol group or a disulfide group, and said recycled carbon black has surface functionalization of between 5 and 15% by weight. 2. Rubber compound for pneumatic tyres according to claim 1 , characterized in that the aminoacidic compound is HSCH 2 CHNH 2 COOH or (SCH 2 CHNH 2 COOH) 2 . 3. Rubber compound for pneumatic tyres according to claim 1 , characterized in that said recycled carbon black is present in the compound in a quantity of between 2 and 25% in phr of the total carbon black. 4. Portion of pneumatic tyre made with the rubber compound according to claim 1 . 5. Portion of pneumatic tyre according to claim 4 , characterized in that it is a portion of the casing of the pneumatic tyre.
Assignees
Inventors
Classifications
Treatment of carbon black {; Purification} · CPC title
Preparation from used rubber products, e.g. tyres (recovery of plastics or other constituents of waste material containing plastics B29B17/00) · CPC title
with dienes · CPC title
Compositions of natural rubber · CPC title
Ingredients treated with organic substances {(treated with macromolecular compounds C08K9/08)} · CPC title
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- What does patent US12090789B2 cover?
- A rubber compound for pneumatic tyres comprising a cross-linkable unsaturated-chain polymer base, carbon black, a silane bonding agent and a vulcanization system. Part of the carbon black is carbon black from pyrolysis having a surface functionalization deriving from a treatment with an aminoacidic compound comprising at least one thiol group or a disulfide group.
- Who is the assignee on this patent?
- Bridgestone Corp
- 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 Sep 17 2024 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).