Propylene-based polymer additives for improved tire tread performance
US12037425B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Apr 9, 2019 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Dec 19, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2296
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 0 to about 25 phr of poly butadiene having a cis-1,4 linkage content of at least 95%; about 75 to 100 phr of a styrene/butadiene copolymer; about 10 to about 30 phr of a processing oil; about 50 to about 70 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.