Propylene (co)polymer composition using metallocene catalyst
US6303696A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a polypropylene composition having a high melt tension and an excellent formability by blending polypropylene (I) produced with a metallocene catalyst type and an olefin (co)polymer (II) comprising 0.01 to 5 parts by weight of the following component (II-1) and 100 parts by weight of the following component (II-2); (II-1): an ethylene homopolymer or an ethylene-olefin copolymer comprising at least 50 wt % ethylene polymerization units, which is a high molecular weight polyethylene having an intrinsic viscosity [.eta..sub.E ] measured in tetralin at 135.degree. C. of 15 to 100 dl/g; and (II-2): polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.