Polypropylene with high melt strength and drawability
US6723795B1 · kind B1 · utility
17Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Mar 29, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Use of a multimodal polypropylene blend in melt processing wherein for enhancing a compromise between melt strength and drawability the blend has a dispersion index of at least 8 and a ratio Mz/Mn of at least 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.