Polyurethane-based anhydrous sizing compositions for glass fibres, glass fibres obtained and composite materials comprising said fibres

摘要

The invention relates to a sizing composition consisting of a solution comprising less than 5% by weight of solvent and comprising a curable base system, said system comprising at least 50% by weight of a mixture of: one or more components containing at least one isocyanate reactive functional group; one or more components containing at least one hydroxyl reactive functional group; and optionally, one or more components containing at least one amine reactive functional group. A subject of the invention is also the glass strands coated with the aforementioned sizing composition. The glass strands obtained can be used to reinforce organic or inorganic materials.