Free-radical modified carbon black filled polypropylenes
US5116540A · kind A · utility
5Cited by
6References
8Claims
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Key dates
| Filing date | Mar 3, 1989 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Mar 3, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Peroxide-provided free-radical molecular weight distribution narrowing of polypropylenes in the compounding stage of making conductive polypropylenes yields carbon black filled polypropylenes with improved rheological properties, surface conductivity, appearance, and surface characteristics with mechanical and physical properties similar to prior conductive polypropylenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.