Polymer dispersion in a reactive organic medium, preparation method and uses

Abstract

The present invention relates to a polymer dispersion devoid of water and of volatile organic solvent intended for the preparation of sizing compositions for glass strands and of coating compositions for glass strands and assemblages of such strands, in particular grids or woven fabrics. The dispersion comprises the product from the polymerization of at least one vinyl monomer in the presence of a radical initiator in a reactive organic dispersing medium. The dispersion includes 20 to 70% by weight of polymer in the form of fine substantially spherical particles with a size of less than 40 μm. It is stable under the normal storage conditions.

Dependencies are inferred from the claim text.