Water-dispersible paper
US11802378B2 · kind B2 · utility
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2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Jan 6, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2400/283
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An object is to provide a water-dispersible paper that exhibits excellent dispersibility in water. As a solution, a water-dispersible paper is provided, which has: a base paper that has a bulky layer containing 10% by weight or higher of a softwood pulp with a lumen width (l) to fiber diameter (D) ratio (l/D) of 0.60 or lower on average; and a water-soluble polymer impregnated into the base paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.