| abstract |
A liquid resin infusion (LRI) manufacturing process for producing a molded article, comprising the steps of providing a curable composition, injecting said curable composition into a mold, and curing said curable composition, wherein the curable composition comprises: a) from 0.5% by weight to 4.0% by weight of a thermoplastic polymer; b) from 0.3% by weight to 4.0% by weight of core-shell particles, wherein said core-shell particles have a particle size in the range of 50 nm to 800 nm, preferably 100 nm at 200nm; c) from 0.1% by weight to 4.0% by weight of inorganic particles, wherein said inorganic particles have a particle size in the range of 2.0 nm to 800 nm, preferably from 2.0 nm to 100 nm; d) an epoxy resin component which is or comprises one or more epoxy resin precursors, preferably epoxy resin precursor(s) having at least two epoxide groups per molecule; and e) one or more amine curing agents, wherein the initial viscosity of said curable composition, as measured according to the method described in the specification, is not greater than 5 Poises at a temperature within the range of temperatures from 80°C to 130°C, wherein the particle size is a volume based particle size, ie d(v, 50) measured by dynamic light scattering using a Malvern Zetasizer 2000 apparatus. |