Aqueous ink jet composition
US-11866596-B2 · Jan 9, 2024 · US
Devulcanized rubber, rubber composition, and pneumatic tire
US12492297B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12492297-B2 |
| Application number | US-202218075540-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2022 |
| Priority date | Dec 22, 2021 |
| Publication date | Dec 9, 2025 |
| Grant date | Dec 9, 2025 |
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- Title
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- Abstract
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Abstract
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The present invention relates to a devulcanized rubber obtained by mixing a devulcanizing agent having an alkylsulfonamide group and a vulcanized rubber. The devulcanizing agent preferably contains a sulfonamide compound of an alkylamine having 12 or more carbon atoms. The present invention also relates to a rubber composition comprising the devulcanized rubber. The rubber composition preferably contains 1 to 30 parts by mass of the devulcanized rubber per 100 parts by mass of a total amount of an unvulcanized rubber component in the rubber composition.
First claim
Opening claim text (preview).
What is claimed is: 1 . A devulcanized rubber obtained by mixing a devulcanizing agent having an alkylsulfonamide group and a vulcanized rubber, wherein the devulcanizing agent contains a sulfonamide compound of an alkylamine having 12 or more carbon atoms. 2 . A rubber composition comprising the devulcanized rubber according to claim 1 . 3 . The rubber composition according to claim 2 , wherein the rubber composition contains 1 to 30 parts by mass of the devulcanized rubber per 100 parts by mass of a total amount of an unvulcanized rubber component in the rubber composition. 4 . A pneumatic tire comprising a rubber part obtained by vulcanizing and molding the rubber composition according to claim 3 . 5 . A pneumatic tire comprising a rubber part obtained by vulcanizing and molding the rubber composition according to claim 3 .
Assignees
Inventors
Classifications
Copolymers with styrene · CPC title
Devulcanisation · CPC title
Characterised by the use of reclaimed rubber · CPC title
Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00 · CPC title
Plastics recycling; Rubber recycling · CPC title
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Frequently asked questions
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- What does patent US12492297B2 cover?
- The present invention relates to a devulcanized rubber obtained by mixing a devulcanizing agent having an alkylsulfonamide group and a vulcanized rubber. The devulcanizing agent preferably contains a sulfonamide compound of an alkylamine having 12 or more carbon atoms. The present invention also relates to a rubber composition comprising the devulcanized rubber. The rubber composition preferabl…
- Who is the assignee on this patent?
- Toyo Tire Corp
- What technology area does this patent fall under?
- Primary CPC classification C08K5/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 09 2025 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).