Dry strength agent composition and method for enhancing the dry strength of paper
US10704201B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jan 21, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a dry strength agent composition, use of an amine-containing cationic polymer for enhancing the dry strength of paper, and a method for enhancing the dry strength of paper. The dry strength agent composition includes at least two components. The first component is an amine-containing cationic polymer and the second component may be one or more anionic or amphoteric polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.