Long chain branched propylene polymer composition
US11618794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2020 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Jun 19, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a crystallization temperature Tc of less than 115° C., b) a melting temperature Tm of less than 155° C. c) a F30 melt strength of from 5.0 to less than 30.0 cN, and d) a V30 melting extensibility of more than 190 mm/s, a process for producing said propylene polymer composition by reactive modification of a propylene polymer in the presence of a peroxide, an article comprising said propylene polymer composition, the use of said propylene polymer composition for producing an article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.