Light-weighting with dual resins in a multi-layer bottle
US11007757B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Nov 22, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Molded multilayer polymer compositions and structures are provided, including a body portion having a body wall. The body wall has a first layer comprising a copolymer HDPE, a second layer comprising a homopolymer HDPE, and a third layer comprising a mix of the copolymer HDPE of the first layer and the homopolymer HDPE of the second layer, wherein the third layer is disposed between the first layer and the second layer, and a total weight content of the homopolymer HDPE is at least about 30 wt-% of the body wall. The body wall has an overall wall thickness T, the first thickness is about 10% of the overall wall thickness T, the second thickness is about 20% of the overall wall thickness T, and the third layer has a third thickness of about 70% of the overall wall thickness T.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.