Copolymer, aqueous solution comprising the copolymer and method for reducing negative effects of natural pitch and adhesive contaminants in both pulping and papermaking operations
US11274397B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Sep 23, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a copolymer comprising at least one hydrophilic monomer; at least one hydrophobic monomer and at least 10% by weight of methyl styrene, particularly suitable to be used as detackifying agent for reducing negative effects caused by natural pitch and/or adhesive contaminants in both pulping and papermaking operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.