High flow polypropylene composition
US8541507B2 · kind B2 · utility
4Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Jun 30, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2023/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a high flow polypropylene composition comprising (A) a low molecular weight propylene homopolymer fraction and (B) a high molecular weight propylene copolymer fraction, having a comonomer content of not higher than 8 wt %, wherein the ratio between the MFR2 of fraction (A) and the MFR2 of fraction (B) is at least 3 and wherein the MFR2 of the entire composition is at least 5 g/10 min, the values of MFR2 being measured according to ISO 1133 (230° C., 2.16 kg load), and to processes for producing such compositions and to articles made there from.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.