The present invention relates to an aqueous barrier coating composition comprising: 20-80% by weight of a dissolved first polysaccharide having a first degree of polymerization (DP1) of at least 150, based on the total solids content of the aqueous barrier coating composition; and 20-80% by weight of a dissolved second polysaccharide having a second degree of polymerization (DP2) of 100 or less, based on the total solids content of the aqueous barrier coating composition; wherein the ratio of DP1:DP2 is at least 10:1; and wherein the aqueous barrier coating composition has a total solids content in the range of 10-90% by weight.

The present invention relates to films comprising a xyloglucan comprising not more than 11 mol % galactose residues, as well as a method for making such films, and its use as an oxygen barrier.

The present invention relates to films comprising a xyloglucan comprising not more than 11 mol % galactose residues, as well as a method for making such films, and its use as an oxygen barrier.

The invention relates to a substrate intended in use to contact a fouling agent, the substrate including a coating comprising polysaccharide, which coating serves to reduce or prevent fouling of the substrate caused by contact from the fouling agent, in comparison to an equivalent uncoated substrate. The invention also relates to the anti-fouling coating, to apparatus comprising such coating and to related methods of reducing or preventing fouling of a substrate intended in use to contact a fouling agent.

The invention relates to a substrate intended in use to contact a fouling agent, the substrate including a coating comprising polysaccharide, which coating serves to reduce or prevent fouling of the substrate caused by contact from the fouling agent, in comparison to an equivalent uncoated substrate. The invention also relates to the anti-fouling coating, to apparatus comprising such coating and to related methods of reducing or preventing fouling of a substrate intended in use to contact a fouling agent.

According to an example aspect of the present invention, here is provided a polysaccharide ether grafted with poly(alkyl acrylate), a latex comprising a polysaccharide ether grafted with poly(alkyl acrylate), and a method of manufacturing a biobased emulsion comprising the steps of providing an allylated polysaccharide ether derivative and grafting the allylated polysaccharide ether derivative with a poly(alkyl acrylate) by emulsion polymerization, a biobased film formed by the said latex or said method and the use of the latex and emulsion.

According to an example aspect of the present invention, here is provided a polysaccharide ether grafted with poly(alkyl acrylate), a latex comprising a polysaccharide ether grafted with poly(alkyl acrylate), and a method of manufacturing a biobased emulsion comprising the steps of providing an allylated polysaccharide ether derivative and grafting the allylated polysaccharide ether derivative with a poly(alkyl acrylate) by emulsion polymerization, a biobased film formed by the said latex or said method and the use of the latex and emulsion.

The present invention relates to an aqueous barrier coating composition comprising: 50-99.9% by weight of one or more anionic low molecular weight polysaccharide(s) having a degree of polymerization (DP) in the range of 2-12; 0.1-10% by weight of a polycationic polymer; based on the total dry weight of the aqueous barrier coating composition.

The present invention relates to an aqueous barrier coating composition comprising: 50-99.9% by weight of one or more anionic low molecular weight polysaccharide(s) having a degree of polymerization (DP) in the range of 2-12; 0.1-10% by weight of a polycationic polymer; based on the total dry weight of the aqueous barrier coating composition.