Polymer for pitch and stickies deposition control in papermaking
US10519602B2 · kind B2 · utility
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18References
20Claims
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Key dates
| Filing date | Jun 14, 2018 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jun 28, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized (“multiquat”) monomer unit(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.