Heterophasic copolymers and polymerization methods
US11034827B2 · kind B2 · utility
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Key dates
| Filing date | Apr 9, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | May 8, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Heterophasic copolymers of propylene and an alpha olefin comonomer having a matrix phase and a fill phase, particularly, a heterophasic copolymer having a high fill phase content (greater than or equal to 50%), are provided herein. Polymerization methods and catalyst systems for producing such heterophasic copolymers are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.