Processes for making masterbatches of rubber and silica
US11098169B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Aug 31, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/006
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is provided for making a silica masterbatch, that contains silica and solution-made rubber. The silica masterbatch has physical properties similar to those found in a comparable dry-mixed composition, but the silica masterbatch can be incorporated more easily and less expensively into tires and other rubber products than the dry-mixed composition. A process is also provided for making a masterbatch of silica, a solution-made rubber and an emulsion-made rubber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.