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AssigneeKemira Oyj
InventorsTaru JOKINEN, Anneli LEPO, Yingying LIU, Jussi NIKKARINEN, Anna STANKEVICH
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The present invention relates to a polymer dispersion, which comprises polymer particles dispersed in an aqueous continuous phase. The polymer particles are obtainable by a radical polymerisation of one or more vinyl monomers comprising alkyl (meth)acrylates. A rosin component is dissolved into at least one of the vinyl monomers before the radical polymerisation of the vinyl monomers, and the radical polymerisation is conducted in the presence of the rosin component. The invention relates also to the use of the polymer dispersion for surface sizing of a cellulosic fibre web and to a method for producing a polymer dispersion.
A polymer dispersion, which comprises polymer particles dispersed in an aqueous continuous phase, wherein the polymer particles are obtained by a radical polymerisation of one or more feeds of vinyl monomers in an aqueous polymerisation medium comprising polysaccharide, the vinyl monomers comprising at least one alkyl (meth)acrylate, wherein a rosin component is dissolved into at least one of the feeds of the vinyl monomers before the radical polymerisation of the vinyl monomers.
A method for producing a polymer dispersion comprising polymer particles in an aqueous continuous phase, for surface sizing of a cellulosic fibre web, such as paper, board or the like, the method comprising
Dependencies are inferred from the claim text.