Method of analyzing degree of hydrogenation of hydrogenated diene polymer
US12352691B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2023 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Feb 20, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is an analysis method that enables simple analysis of the degree of hydrogenation of a hydrogenated diene polymer. The present disclosure relates to a method of analyzing the degree of hydrogenation of a hydrogenated diene polymer using infrared absorption spectroscopy, the method including use of a calibration curve represented by the following equation (1): 2H−Vin=aA2915+b where H is the degree of hydrogenation (%) of a hydrogenated diene polymer, Vin is the vinyl percentage (%) of the hydrogenated diene polymer, A2915 is the peak intensity of a peak attributed to CH2 antisymmetric stretching vibration, and a and b are each a constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.