Articles comprising broad molecular weight distribution polypropylene resins
US9902822B2 · kind B2 · utility
2Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Nov 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein are embodiments of films which comprise a polypropylene resin comprising at least 50 mol % propylene, an MWD (Mw/Mn) of greater than 5, a branching index (g′) of at least 0.95, and a melt strength of at least 20 cN determined using an extensional rheometer at 190° C. A method of making a film is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.