Dextrin copolymer with styrene and an acrylic ester, manufacturing method thereof, and use thereof for paper coating
US10160815B2 · kind B2 · utility
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21References
18Claims
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Key dates
| Filing date | Aug 13, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Aug 13, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a copolymer of a dextrin and at least two hydrophobic monomers made up of styrene and at least one straight or branched acrylic C1-C4 ester. The invention also relates to the manufacturing method thereof and to the use thereof in paper coating. The copolymer has high dextrin content (>60 wt % relative to the weight of the dextrin and the hydrophobic monomers) so as to favor the biosourced aspect of the material, and provides very good hydrophobicity for the paper sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.