Modified resin systems suitable for liquid resin infusion
AssigneeCytec Industries Inc.
InventorsJonathan E. Meegan, Olivia Denman, Marco Aurilia
Life of this patent
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Abstract
A curable composition for liquid resin infusion (LRI) and a manufacturing process for producing a molded article. The curable composition includes: a) no more than 5.0 wt % of a thermoplastic polymer; b) no more than 5.0 wt % of nano-sized core-shell particles; c) no more than 5.0 wt % of nano-sized inorganic particles; d) an epoxy resin component; and e) one or more amine curing agent(s), wherein the initial viscosity of said curable composition is no more than 5 Poise at a temperature within the temperature range of from about 80° C. to about 130° C.
Claims23
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) a thermoplastic polymer in an amount up to 5.0 wt %, said thermoplastic polymer being selected from:
- polyarylethers, polyarylsulphides, polyarylsulphones, and copolymers thereof;
- b) core-shell particles in an amount up to 5.0 wt %, wherein said core-shell particles have a particle size in the range of from about 50 nm to about 800 nm;
- c) inorganic particles in an amount up to 5.0 wt %, wherein said inorganic particles have a particle size in the range of from about 2.0 nm to about 800 nm;
- d) an epoxy resin component which comprises one or more epoxy resin precursor(s);
- and
- e) one or more amine curing agent(s),
- wherein the initial viscosity of said curable composition is no more than 5 Poise at a temperature within the temperature range of from about 80° C. to about 130° C.,
- wherein the molded article exhibits a self-assembled shelled morphology of inorganic particles around phase-separated thermoplastic polymer domains, and said self-assembled shelled morphology of inorganic particles around phase-separated thermoplastic polymer domains is generated in situ during curing.
Dependencies are inferred from the claim text.