Elongated tubular articles from wet-laid webs
US11390996B2 · kind B2 · utility
3Cited by
119References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention relate to elongated tubular members that include at least one layer comprising a cellulose ester. In some cases, the cellulose ester may be in the form of staple fibers. The layer may be formed via a wet-laid fiber web that may also include cellulose fibers. The elongated tubular members may be suitable for use with food and/or beverage items as, for example, drinking straws or other similar items.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.