Articles comprising broad molecular weight distribution polypropylene resins
US9464178B2 · kind B2 · utility
6Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Oct 8, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are molded articles, foamed articles, and foamable resins comprising 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. Methods of making a molded article and making a foamed article are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.