Co-extruded, biaxially oriented, matte, HDPE films
US11718079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2022 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Aug 18, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2553/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising, consisting essentially of, or consisting of low-density polyethylene, optionally linear, and at least about 80 wt. % of high-density polyethylene, as well as a second skin layer comprising either: (i) one or more low-density polyethylenes, any or all of them optionally being linear; or (ii) one or more polypropylene-based copolymers. The multilayer film may be oriented in at least one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.