Composition based on isotactic polypropylene obtained by metallocene catalysis and on grafted isotactic polypropylene obtained by ziegler-natta catalysis
US7510775B2 · kind B2 · utility
3Cited by
6References
13Claims
0Family size
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Inventor
Key dates
| Filing date | Apr 25, 2005 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Mar 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a composition comprising isotactic polypropylene homo- or copolymer obtained by metallocene catalysis (A), abbreviated to miPP, and isotactic polypropylene homo- or copolymer obtained by Ziegler-Natta catalysis (B), abbreviated to zniPP, and grafted. It also relates to a coextrusion tie comprising such a composition.It also relates to a multilayer structure comprising a layer (L) comprising the preceding tie and, directly attached to this layer:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.