Recycled polyethylene-polypropylene blends comprising a compatibilizer
US11512189B2 · kind B2 · utility
1Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/143
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.