Composition for providing barrier properties, its use and a sheet-like product
AssigneeKemira Oyj
InventorsJaana LAINE, Kaisa KARISALMI
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Abstract
The invention relates to a composition for providing barrier properties for a cellulosic fibre web, such as paper, board or the like. The coating composition comprises microfibril lated non-wood biomass, having a particle size D90<250 μm and particle size D50<100 μm, which microfibrillated non-wood biomass comprises at least 5 weight-% of a hemicellulose fraction and/or pectin, calculated from the dry weight of the microfibrillated non-wood biomass; an auxiliary agent comprising at least one cellulose derivative, and/or a synthetic binding agent, such as polyvinyl alcohol or polystyrene acrylate copolymer.
Claims15
A coating composition for providing barrier properties for a cellulosic fibre web, such as paper, board or the like, the coating composition comprising:
- microfibrillated non-wood biomass, having a particle size D90 <250 μm and a particle size D50 <100 μm, which microfibrillated non-wood biomass comprises at least 5 weight-% of a hemicellulose fraction and/or pectin, calculated from a dry weight of the microfibrillated non-wood biomass;
- an auxiliary agent comprising at least one cellulose derivative;
- and/or
- a synthetic binding agent, such as polyvinyl alcohol or polystyrene acrylate copolymer.
Dependencies are inferred from the claim text.