Dual drawtape trash bags having improved elastic and stiffness performance
US11465835B2 · kind B2 · utility
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Key dates
| Filing date | Jul 17, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Jul 20, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65F2250/1143
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Embodiments of thermoplastic bags which yield elasticity and stiffness include a first drawtape disposed within the first channel, wherein the first drawtape comprises a linear low density polyethylene having a density of from 0.902 g/cc to 0.920 g/cc, and a second drawtape disposed within the second channel, wherein the second drawtape comprises a high density polyethylene having a density of from 0.940 g/cc to 0.965 g/cc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.