FIELD: pulp industry.
SUBSTANCE: invention relates to surface sizing of cellulose articles, such as paper, and in particular to a core-shell-type polymer particle for surface sizing of cellulose articles, in which core polymer and polymer shell polymer particle of core-shell-type are polymerised from monomers selected from tert-butyl acrylate, n-butyl acrylate and acrylonitrile, core-shell-type polymer particle polymer contains at least 40 wt% tert-butyl acrylate; and shell polymer is polymerised from monomers containing at least 50 wt% tert-butyl acrylate, wherein shell polymer encapsulates core polymer. Invention also relates to a sizing composition containing said polymer particle and a carrier.
EFFECT: disclosed is the use of core-shell-type polymer particles as surface sizing agents.
15 cl, 2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CATIONIC AGENT FOR SURFACE GLUING | 2016 |
|
RU2727719C2 |
| AQUEOUS COMPOSITIONS OF POLYMER EMULSIONS AND THEIR USE FOR SIZING PAPER | 2000 |
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| COMPOSITION FOR MODIFYING RHEOLOGICAL PROPERTIES OF COATING DYE, USE THEREOF AND COATING DYE | 2017 |
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| AQUEOUS POLYMER DISPERSION, USE THEREOF AND A METHOD OF PRODUCING AN AQUEOUS POLYMER DISPERSION | 2017 |
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