Rubber composition, tread rubber, and tire
US-2021380786-A1 · Dec 9, 2021 · US
Evaluation method
US12196718B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12196718-B2 |
| Application number | US-202217568121-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 4, 2022 |
| Priority date | Feb 2, 2021 |
| Publication date | Jan 14, 2025 |
| Grant date | Jan 14, 2025 |
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Abstract
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Provided is an evaluation method capable of evaluating stress on a bond which is difficult to detect by Raman spectroscopy. The present disclosure relates to an evaluation method including using infrared absorption spectra measured on a rubber specimen under application of no tensile force and under application of a tensile force to calculate an amount of peak shift caused by application of the tensile force, and evaluating stress in the rubber specimen from the amount of peak shift.
First claim
Opening claim text (preview).
The invention claimed is: 1. An evaluation method, comprising using infrared absorption spectra measured on a rubber specimen under application of no tensile force and under application of a tensile force to calculate an amount of peak shift caused by application of the tensile force, and evaluating stress in the rubber specimen from the amount of peak shift, wherein the rubber specimen comprises a diene rubber, and wherein the infrared absorption spectra are measured in the measurement range of 4,000 to 400 cm −1 . 2. The evaluation method according to claim 1 , wherein the amount of peak shift is used to estimate a location of stress generated in the rubber specimen. 3. The evaluation method according to claim 1 , wherein the amount of peak shift is used to estimate a magnitude of stress generated in the rubber specimen. 4. The evaluation method according to claim 1 , wherein the infrared absorption spectra are measured by transmission Fourier transform infrared spectroscopy. 5. The evaluation method according to claim 1 , wherein the rubber specimen has a thickness of 20 μm or less.
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- What does patent US12196718B2 cover?
- Provided is an evaluation method capable of evaluating stress on a bond which is difficult to detect by Raman spectroscopy. The present disclosure relates to an evaluation method including using infrared absorption spectra measured on a rubber specimen under application of no tensile force and under application of a tensile force to calculate an amount of peak shift caused by application of the…
- Who is the assignee on this patent?
- Sumitomo Rubber Ind
- What technology area does this patent fall under?
- Primary CPC classification G01L1/248. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 14 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).