Precipitated silica with improved processing properties
US12077444B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jul 12, 2019 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Jan 15, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A precipitated silica for use in tire applications. In particular, a precipitated silica characterised by a CTAB surface area SCTAB greater than 140 m2/g; a width of the aggregate size distribution Ld, measured by centrifugal sedimentation, of at least 1.2; a pH of less than 5.5; and a carbon content of less than 1500 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.