Paperboard products with improved rigidity and moisture barrier properties
US12281442B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Apr 26, 2023 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Apr 26, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2110/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Aspects of the present disclosure include a rigid paperboard product comprising at least one modified starch and at least one crosslinker, wherein the at least one modified starch is present in an amount ranging from 2% to 20% by weight of the paperboard product, wherein the at least one crosslinker is present in an amount ranging from 0.5% to 8% by weight based on the dry weight of the starch content in the paperboard product, and wherein the paperboard product has a rigidity value ranging from 375 to 500.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.