NOVEL DISPERSIONS AND METHOD FOR THE PRODUCTION THEREOF

摘要

An aqueous dispersion comprising a non-settling colloidal hemicellulose ester polymer in water and a method of producing the same. In the method an esterified hemicellulose is provided wherein at least a part of the esterifying groups are derived from a lower alkanoic acid; the esterified hemicellulose is dissolved in an alkanoic acid to produce a solution; and the solution is dispersed into water to produce an aqueous dispersion of the hemicellulose ester. The present compositions, containing hemicellulose derivatives of low solubility, can be used in paper, paperboard and other fibre-based materials, for paints, surface treatments for polymer films, and polymer films as such, and can be applied as binders.