Abstract: The invention provides a water-blocking composite comprising a substrate impregnated with or having a coating of a mixture of a radiation-polymerised compound and a water-swellable compound, and method for production thereof.

Abstract: A process for the manufacture of fibre-reinforced intermediates useful in thermoplastic processing methods, including compounding and moulding, which comprises impregnating continuous fibres with a resin composition comprising at least one radiation-polymerizable component, exposing the impregnated fibres to radiation to effect polymerization of such component, and cutting the product to form thermoplastically processible intermediates which, optionally, may be mixed with other polymer and/or additives during mixing or moulding. A process described as above but in which the uncut radiation polymerized fibre-resin product is blended with a least one polymer and/or additive in a continuous mixer, such as an extruder; and the resulting blended product is cut to form thermoplastically processible intermediates, such as mouldable pellets.

Abstract: The invention relates to a process for preparing a fibre-reinforced composite or a fibre-reinforced coating, which comprises impregnating reinforcing fibres with a radiation-curable composition comprising a polymerisable monomer and a polymer which is dissolved or dispersed in the monomer, and exposing the impregnated fibres to radiation to effect curing of the composition.