Nanocomposite elastomers
US-2017333602-A1 · Nov 23, 2017 · US
Rubber vulcanization processes employing an eutectic mixture
US12570839B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12570839-B2 |
| Application number | US-202318324597-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 26, 2023 |
| Priority date | Oct 31, 2017 |
| Publication date | Mar 10, 2026 |
| Grant date | Mar 10, 2026 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.
First claim
Opening claim text (preview).
What is claimed is: 1 . A rubber vulcanizate comprising: a vulcanized rubber network including a metal compound dispersed throughout the vulcanized rubber network, said vulcanized rubber network including from about 0.1 to about 1 part by weight of the metal compound per 100 parts by weight rubber (phr), where the metal compound is zinc oxide or a derivative of zinc oxide, where the vulcanized rubber network includes vulcanized elastomer selected from the group consisting of natural rubber, synthetic polyisoprene, polybutadiene, polyisobutylene-co-isoprene, neoprene, poly (ethylene-co-propylene), poly (styrene-co-butadiene), poly (styrene-co-isoprene), poly (styrene-co-isoprene-co-butadiene), poly (isoprene-co-butadiene), poly (ethylene-co-propylene-co-diene), polysulfide rubber, urethane rubber, silicone rubber, epichlorohydrin rubber, and mixtures thereof, a eutectic composition or a residue of the eutectic composition, where the eutectic composition is formed by combining choline chloride and urea, and where the rubber vulcanizate is a tire component. 2 . The rubber vulcanizate of claim 1 , said vulcanized rubber network including from about 0.15 to about 0.75 parts by weight of the metal compound per 100 parts by weight rubber (phr). 3 . The rubber vulcanizate of claim 1 , where the tire component is a tire tread, a tire sidewall, a belt skim, an innerliner, or a bead apex. 4 . The rubber vulcanizate of claim 1 , where the tire component is a tire tread. 5 . The rubber vulcanizate of claim 1 , where the metal compound is the zinc oxide.
Assignees
Inventors
Classifications
containing four or more polymers in a blend · CPC title
Compositions of natural rubber · CPC title
by reaction with halogens or halogen-containing compounds (C08L23/32 takes precedence) · CPC title
- C08L9/06Primary
Copolymers with styrene · CPC title
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title
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Frequently asked questions
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- What does patent US12570839B2 cover?
- A process for preparing a rubber vulcanizate, the process comprising (i) providing a vulcanizable composition of matter including a sulfur-based curative, zinc oxide, and a eutectic solvent; and (ii) heating the vulcanizable composition to thereby effect vulcanization.
- Who is the assignee on this patent?
- Bridgestone Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L9/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 10 2026 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).