Method for making paper product
US10731296B2 · kind B2 · utility
1Cited by
12References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2019 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Sep 6, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/816
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paperboard, sidewall, and disposable cup made from about 70 wt % to about 100 wt % of recycled fiber. The paperboard can include about 70 wt % to about 100 wt % of recycled fiber, based on the total weight of the fiber. The paperboard can have a board thickness of about 14 mil to about 20 mil, an apparent density of less than about 11.5 lbs/3,000 ft2/mil, a CD Taber Stiffness of about 50 g*cm or more, and a MD/CD Taber Stiffness ratio of 1.0 to 3.0, and can be used to make recycled cups having sufficient strength and rigidity properties that rival cups made from virgin fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.