SIZING COMPOSITION FOR FIBERS, SIZED FIBERS AND METHOD OF SIZING FIBERS

摘要

Disclosed are aqueous size compositions for inorganic fibers which is based ona specificpolymeric film former composition comprisingA) at least one low molecular weight polyvinylacetate and/or at least onemiddle molecularweight polyvinylacetate, andB) at least one low viscosity partially hydrolysed polyvinyl alcoholC) the weight ratio of A) to B) is between 0.5 and 3ØAlso disclosed are fiber strands and fibers having such a sizing thereon, andtheir use formaking hydraulic set board comprising a hydraulic set cement or gypsum coreand reinforcinginorganic fibers coated with the dried sizing compostion of the invention.