Method for manufacturing an elastomeric composition having a self-sealing property
US9944775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Sep 18, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L57/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the manufacture of an elastomer composition having a self-sealing property which is based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a solid unsaturated diene elastomer; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler; between 0.5 and 15 phr of thiuram polysulphide, in which, during a first stage or stage (a), a masterbatch comprising at least the solid unsaturated diene elastomer and between 30 and 90 phr of a hydrocarbon resin is prepared by mixing these various components in a mixer at a “hot compounding” temperature or up to a “hot compounding” temperature which is greater than the softening temperature of the hydrocarbon resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.