Process for cross-linking thermoplastic polyolefin elastomer compositions
US7632894B2 · kind B2 · utility
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Key dates
| Filing date | May 29, 2002 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | May 29, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for cross-linking an elastomer-containing thermoplastic polyolefin composition comprising the steps of preparing a masterbatch by mixing and/or masticating an elastomeric polyolefin with a cross-linking co-agent, and optionally an additive, in the presence of a thermoplastic polyolefin; then, cooling the masterbatch obtained in the preceding step at least up to the solidification of the thermoplastic polyolefin; and finally mixing and/or masticating the masterbatch, after the cooling step, with a cross-linking agent and optionally an additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.