Rubber composition with dual fillers reinforcement
US11981816B2 · kind B2 · utility
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2References
20Claims
0Family size
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Key dates
| Filing date | Jul 26, 2022 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Nov 26, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C1/0016
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure relates to a rubber composition comprising at least rubber, and reinforcement materials, the reinforcement materials comprising silica particles and Kraft lignin nanoparticles, wherein the phr ratio between the silica particles and Kraft lignin nanoparticles is ranging between 3 and 20; wherein the Kraft lignin nanoparticles have an average diameter size ranging between 10 and 100 nm as determined by scanning electron microscopy; and wherein the Kraft lignin nanoparticles have a glass transition temperature of at least 150° C. as determined by Differential Scanning Calorimetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.