Collapsed bubble drawtape film for improved elastic and stiffness performance in trash bags
US11485116B2 · kind B2 · utility
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17References
9Claims
0Family size
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Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jul 18, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65F2250/1146
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Embodiments of the present disclosure are directed to drawtapes for trash bags, wherein the drawtape comprises a multilayer polymer film having an improved stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.