Ash retention additive and methods of using the same
US12065785B2 · kind B2 · utility
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29References
12Claims
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Key dates
| Filing date | Feb 19, 2021 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Mar 18, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided herein are additives for paper compositions comprising poly(ethylene oxide) (PEO) and polyacrylamide polymer that are capable of increasing the ash retention of the paper composition. Also provided are methods of making a paper composition using the additives of the disclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.